Skip to main content
ARS Home » Pacific West Area » Corvallis, Oregon » Horticultural Crops Disease and Pest Management Research Unit » People & Locations » Niklaus Grunwald (Nik)
Niklaus Grunwald (Nik)
Research Plant Pathologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Krisp: A Python package to aid in the design of CRISPR and amplification-based diagnostic assays from whole genome sequencing data - (Peer Reviewed Journal)
Foster, Z.S.L., Tupper, A.S., Press, C.M., Grunwald, N.J. 2024. Krisp: A Python package to aid in the design of CRISPR and amplification-based diagnostic assays from whole genome sequencing data. PLoS Computational Biology. 20(5):e1012139. https://doi.org/10.1371/journal.pcbi.1012139.
First report of Phytophthora ramorum causing leaf spots on Cornus capitata (evergreen dogwood) in the United States - (Peer Reviewed Journal)
Belisle, W.H., Rooney-Latham, S., Soriano, M.C., Grunwald, N.J., Blomquist, C.L. 2024. First report of Phytophthora ramorum causing leaf spots on Cornus capitata (evergreen dogwood) in the United States. Plant Disease. 108(4):1119. https://doi.org/10.1094/PDIS-12-23-2638-PDN.
Open access and reproducibility in plant pathology research: Guidelines and best practices - (Peer Reviewed Journal)
Grunwald, N.J., Bock, C.H., Chang, J.H., Alves De Souza, A., Del Ponte, E.M., du Toit, L.J., Dorrance, A.E., Dung, J., Gent, D.H., Goss, E.M., Lowe-Power, T., Madden, L.V., Martin, F.N., McDowell, J., Naegele, R.P., Potnis, N., Quesada-Ocampo, L.M., Sundin, G.W., Thiessen, L., Vinatzer, B.A., Zeng, Q. 2024. Open access and reproducibility in plant pathology research: Guidelines and best practices. Phytopathology. 114(5):910-916. https://doi.org/10.1094/PHYTO-12-23-0483-IA.
Climatic variability, spatial heterogeneity and the presence of multiple hosts drive the population structure of the pathogen Phytophthora ramorum and the epidemiology of Sudden Oak Death - (Peer Reviewed Journal)
Kozanitas, M., Knaus, B.J., Tabima, J.F., Grunwald, N.J., Garbelotto, M. 2024. Climatic variability, spatial heterogeneity and the presence of multiple hosts drive the population structure of the pathogen Phytophthora ramorum and the epidemiology of Sudden Oak Death. Ecography. Article e07012. https://doi.org/10.1111/ecog.07012.
Metabarcoding for plant pathologists - ()
Sudermann, M., Foster, Z.S., Chang, J., Grunwald, N.J. 2023. Metabarcoding for plant pathologists. Canadian Journal of Plant Pathology. 46(2):142-160. https://doi.org/10.1080/07060661.2023.2290041.
High quality genome of the tree pathogen Phytophthora plurivora - a novel resource for epidemiological research - (Peer Reviewed Journal)
Tsyka, T., Mishra, B., Ploch, S., Alcala-Briseno, R.I., Prospero, S., Grunwald, N.J., Thines, M. 2023. High quality genome of the tree pathogen Phytophthora plurivora - a novel resource for epidemiological research. PhytoFrontiers. https://doi.org/10.1094/PHYTOFR-05-23-0065-A.
Genetic Diversity, Evolution, and Diagnosis of Sugarcane Yellow Leaf Virus from 19 Sugarcane-Producing Locations - (Peer Reviewed Journal)
Rott, P., Grinstead, S.C., Dallot, S., Foster, Z.S., Daugrois, J., Fernandez, E., Kaye, C., Hendrickson, L., Hu, X., Adhikari, B.N., Malapi-Wight, M., Grunwald, N.J., Roumagnac, P., Mollov, D.S. 2023. Genetic Diversity, Evolution, and Diagnosis of Sugarcane Yellow Leaf Virus from 19 Sugarcane-Producing Locations. Plant Disease. https://doi.org/10.1094/PDIS-10-22-2405-RE.
Phylogeography and population structure of the global, wide host-range hybrid pathogen Phytophthora x cambivora - (Peer Reviewed Journal)
Mullett, M., Van Poucke, K., Haegeman, A., Focquet, F., Cauldron, N., Knaus, B., Horta Jung, M., Kageyama, K., Hieno, A., Masuja, H., Uematsu, S., Webber, J., Brasier, C.M., Bakonyi, J., Heungens, K., Grunwald, N.J., Jung, T. 2023. Phylogeography and population structure of the global, wide host-range hybrid pathogen Phytophthora x cambivora. IMA Fungus. 14. Article 4. https://doi.org/10.1186/s43008-023-00109-6.
Openness and computational reproducibility in plant pathology: Where we stand and a way forward - (Peer Reviewed Journal)
Sparks, A.H., Del Ponte, E., Alves, K., Foster, Z.S., Grunwald, N.J. 2023. Openness and computational reproducibility in plant pathology: Where we stand and a way forward. Phytopathology. https://doi.org/10.1094/PHYTO-10-21-0430-PER.
Whole genome sequencing-based tracing of a 2022 introduction and outbreak of Xanthomonas hortorum pv. pelargonii - (Peer Reviewed Journal)
Bocardo, F.S., Weisberg, A.J., Riutta, E., Kilday, K., Bonkoswki, J.C., Cresswell, T., Daughtrey, M.L., Rane, K., Grunwald, N.J., Chang, J.H., Putnam, M.L. 2022. Whole genome sequencing-based tracing of a 2022 introduction and outbreak of Xanthomonas hortorum pv. pelargonii. Phytopathology. https://doi.org/10.1094/PHYTO-09-22-0321-R.
Chromosome-level assembly of the Phytophthora agathidicida genome reveals adaptation in effector gene families - (Peer Reviewed Journal)
Cox, M.P., Guo, Y., Winter, D.J., Sen, D., Cauldron, N.C., Shiller, J., Bradley, E.L., Ganley, A.R., Gerth, M.L., Lacey, R.F., McDougal, R.L., Panda, P., Williams, N.M., Grunwald, N.J., Mesarich, C.H., Bradshaw, R.E. 2022. Chromosome-level assembly of the Phytophthora agathidicida genome reveals adaptation in effector gene families. Frontiers in Microbiology. 13. Article 1038444. https://doi.org/10.3389/fmicb.2022.1038444.
Comparative genomic analysis of 31 Phytophthora genomes reveals genome plasticity and horizontal gene transfer - (Peer Reviewed Journal)
Kronmiller, B.A., Feau, N., Shen, D., Tabima, J.F., Ali, S.S., Armitage, A.D., Arredondo, F., Bailey, B.A., Bollmann, S.R., Dale, A., Harrison, R., Hrywkiw, K., Kasuga, T., Mcdougal, R., Nellist, C.F., Panda, P., Tripathy, S., Williams, N.M., Ye, W., Wang, Y., Hamelin, R.C., Grunwald, N.J. 2023. Comparative genomic analysis of 31 Phytophthora genomes reveals genome plasticity and horizontal gene transfer. Molecular Plant-Microbe Interactions. 36:26-46. https://doi.org/10.1094/MPMI-06-22-0133-R.
Genomic biosurveillance detects a sexual hybrid in the sudden oak death pathogen - (Peer Reviewed Journal)
Hamelin, R.C., Bilodeau, G., Heinzelmann, R., Hrywkiw, K., Capron, A., Dort, E., Dale, A., Giroux, E., Kus, S., Carleson, N., Grunwald, N.J., Feau, N. 2022. Genomic biosurveillance detects a sexual hybrid in the sudden oak death pathogen. Communications Biology. 5. Article 477. https://doi.org/10.1038/s42003-022-03394-w.
Repeated emergence of sudden oak death in Oregon: Chronology, impact, and management - ()
LeBoldus, J.M., Navarro, S.M., Kline, N., Ritokova, G., Grunwald, N.J. 2022. Repeated emergence of sudden oak death in Oregon: Chronology, impact, and management. Plant Disease. 106(12):3013-3021. https://doi.org/10.1094/PDIS-02-22-0294-FE.
A new oomycete metabarcoding method using the rps10 gene - (Peer Reviewed Journal)
Foster, Z.S., Albornoz, F.E., Fieland, V.J., Larsen, M.M., Jones, F.A., Tyler, B.M., Nguyen, H.D., Burgess, T., Riddell, C., Voglmayr, H., Martin, F.N., Grunwald, N.J. 2022. A new oomycete metabarcoding method using the rps10 gene. Phytobiomes Journal. 6(3):214-226. https://doi.org/10.1094/PBIOMES-02-22-0009-R.
Irrigation frequency and volume has little influence on Phytophthora root rot in container-grown rhododendron - (Peer Reviewed Journal)
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Davis, E.A., Beck, B.R., Mitchell, J.N. 2022. Irrigation frequency and volume has little influence on Phytophthora root rot in container-grown rhododendron. Journal of Environmental Horticulture. 40(2):67-78. https://doi.org/10.24266/2573-5586-40.2.67.
First report of the NA2 clonal lineage of the sudden oak death pathogen, Phytophthora ramorum, infecting tanoak in Oregon forests - (Peer Reviewed Journal)
Peterson, E.K., Sondreli, K.L., Reeser, P., Navarro, S., Nichols, C., Wiese, R., Fieland, V.J., Grunwald, N.J., LeBoldus, J.M. 2022. First report of the NA2 clonal lineage of the sudden oak death pathogen, Phytophthora ramorum, infecting tanoak in Oregon forests. Plant Disease Notes. 106(9):2537. https://doi.org/10.1094/PDIS-10-21-2152-PDN.
High-quality, phased genomes of Phytophthora ramorum clonal lineages NA1 and EU1 - (Peer Reviewed Journal)
Carleson, N., Press, C.M., Grunwald, N.J. 2022. High-quality, phased genomes of Phytophthora ramorum clonal lineages NA1 and EU1. Molecular Plant-Microbe Interactions. 35(4):360-363. https://doi.org/10.1094/MPMI-11-21-0264-A.
Is disease induced by flooding representative of nursery conditions in rhododendrons infected with P. cinnamomi or P. plurivora? - (Peer Reviewed Journal)
Mestas, A., Weiland, G.E., Scagel, C.F., Grunwald, N.J., Davis, E.A., Mitchell, J.N., Beck, B.R. 2022. Is disease induced by flooding representative of nursery conditions in rhododendrons infected with P. cinnamomi or P. plurivora? Plant Disease. 106(4):1157-1166. https://doi.org/10.1094/PDIS-06-21-1340-RE.
Risk of epidemic development in nurseries from soil inoculum of Phytophthora ramorum - (Peer Reviewed Journal)
Peterson, E.K., Grunwald, N.J., Parke, J.L. 2022. Risk of epidemic development in nurseries from soil inoculum of Phytophthora ramorum. Phytopathology. 112(5):1046-1054. https://doi.org/10.1094/PHYTO-06-21-0245-R.
Diversification of plasmids in a genus of pathogenic and nitrogen-fixing bacteria - (Peer Reviewed Journal)
Weisberg, A.J., Miller, M., Ream, W., Grunwald, N.J., Chang, J.H. 2021. Diversification of plasmids in a genus of pathogenic and nitrogen-fixing bacteria. Proceedings of the Philosophical Transactions of The Royal Society B: Biological Sciences. 377(1842). Article 20200466. https://doi.org/10.1098/rstb.2020.0466.
Phylogeography of the wide-host range panglobal plant pathogen phytophthora cinnamomi - (Peer Reviewed Journal)
Shakya, S.K., Grunwald, N.J., Fieland, V.J., Knaus, B.J., Weiland, G.E., Maia, C., Drenth, A., Guest, D.I., Liew, E.C., Crane, C., Chang, T., Fu, C., Chi, N., Thu, P., Scanu, B., Jung, M.H., Jung, T. 2021. Phylogeography of the wide-host range panglobal plant pathogen phytophthora cinnamomi. Molecular Ecology. 30(20):5164-5178. https://doi.org/10.1111/mec.16109.
High quality, phased genomes sequences of phytophthora ramorum clonal lineages NA1 and EU1 - ()
Carleson, N.C., Press, C.M., Grunwald, N.J. 2021. High quality, phased genomes sequences of phytophthora ramorum clonal lineages NA1 and EU1. bioRxiv. 2021.06.23.449625. https://doi.org/10.1101/2021.06.23.449625.
Growth, infection and aggressiveness of phytophthora pathogens on rhododendron leaves - (Peer Reviewed Journal)
Taylor, C., Grunwald, N.J. 2021. Growth, infection and aggressiveness of phytophthora pathogens on rhododendron leaves. CABI Agriculture and Bioscience (CABI A&B). 2:26. https://doi.org/10.1186/s43170-021-00048-5.
Genetic processes facilitating pathogen emergence - ()
Grunwald, N.J., Brown, C., Ip, H., Chang, J. 2022. Genetic processes facilitating pathogen emergence. In: Cardwell, K.F., Bailey, K.L., editors. Tactical Sciences for Biosecurity in Animal and Plant Systems. Hershey, PA: IGI Global. p. 32-53. https://doi.org/10.4018/978-1-7998-7935-0.ch002.
Genomic approaches to characterize plant pathogen epidemiology and develop diagnostics - ()
Weisberg, A.J., Putnam, M.L., Grunwald, N.J., Savory, E.A., Chang, J.H. 2021. Genomic approaches to characterize plant pathogen epidemiology and develop diagnostics. Annual Review of Phytopathology. 59:311-332. https://doi.org/10.1146/annurev-phyto-020620-121736.
First reports of phytophthora ramorum clonal lineages NA1 and EU1 from tanoaks in Del Norte county, California - (Peer Reviewed Journal)
Garbelotto, M., Schmidt, D., Dovana, F., Lee, C., Fieland, V.J., Grunwald, N.J., Valachovic, Y. 2021. First reports of phytophthora ramorum clonal lineages NA1 and EU1 from tanoaks in Del Norte county, California. Plant Disease. https://doi.org/10.1094/PDIS-12-20-2633-PDN.
Entering the international year of fruits and vegetables: tradeoffs between food production and the environment - ()
Grunwald, N.J. 2021. Entering the international year of fruits and vegetables: tradeoffs between food production and the environment. CABI Agriculture and Bioscience (CABI A&B). 2:2. https://doi.org/10.1186/s43170-021-00023-0.
Phytophthora species differ in response to phosphorous acid and mefenoxam for the management of phytophthora root rot in rhododendron - (Peer Reviewed Journal)
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Davis, E.A., Beck, B.R. 2020. Phytophthora species differ in response to phosphorous acid and mefenoxam for the management of phytophthora root rot in rhododendron. Plant Disease. 105:1505-1514. https://doi.org/10.1094/PDIS-09-20-1960-RE.
Transcriptome-derived amplicon sequencing (AmpSeq) markers elucidate the U.S. podosphaera macularis population structure across feral and commercial plantings of Humulus lupulus - (Peer Reviewed Journal)
Weldon, W.A., Knaus, B.J., Grunwald, N.J., Havill, J.M., Block, M.H., Gent, D.H., Cadle Davidson, L.E., Gadoury, D.M. 2020. Transcriptome-derived amplicon sequencing (AmpSeq) markers elucidate the U.S. podosphaera macularis population structure across feral and commercial plantings of Humulus lupulus. Phytopathology. 111:194-203. https://doi.org/10.1094/PHYTO-07-20-0299-FI.
Molecular phylogenetics and population structure of phytophthora pluvialis - (Peer Reviewed Journal)
Tabima, J.F., Gonen, L., Gomez, M., Panda, P., Grunwald, N.J., Hansen, E., Mcdougal, R., Leboldus, J., Williams, N. 2020. Molecular phylogenetics and population structure of phytophthora pluvialis. Phytopathology. 111:108-115. https://doi.org/10.1094/PHYTO-06-20-0232-FI.
Phylogeographic approaches to characterize the emergence and spread of plant pathogens - ()
Rasmussen, D.A., Grunwald, N.J. 2020. Phylogeographic approaches to characterize the emergence and spread of plant pathogens. Phytopathology. 111(1):68-77. https://doi.org/10.1094/PHYTO-07-20-0319-FI.
Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests - (Peer Reviewed Journal)
Carleson, N.C., Daniels, H.A., Larsen, M.M., Sutton, W., Reeser, P.W., Kanaskie, A., Hansen, E.M., Navarro, S.M., Leboldus, J.M., Grunwald, N.J. 2021. Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests. Phytopathology. 111(4):731-740. https://doi.org/10.1094/PHYTO-05-20-0164-R.
Development of a diagnostic assays for race differentiation of Podophaera macularis - (Peer Reviewed Journal)
Block, M., Knaus, B.J., Wiseman, M., Grunwald, N.J., Gent, D.H. 2021. Development of a diagnostic assays for race differentiation of Podophaera macularis. Plant Disease. 105(4):965–971. https://doi.org/10.1094/PDIS-06-20-1289-RE.
Launching CABI Agriculture and Bioscience: Ensuring that today's research meets tomorrow's global challenges in agriculture and the environment - ()
Grunwald, N.J., Marquet, P.A., Robinson, A. 2020. Launching CABI Agriculture and Bioscience: Ensuring that today's research meets tomorrow's global challenges in agriculture and the environment. CABI Agriculture and Bioscience. 1:5. https://doi.org/10.1186/s43170-020-00005-8.
Genome-wide increased copy number is associated with emergence of dominant clones of the Irish potato famine pathogen Phytophthora infestans - (Peer Reviewed Journal)
Knaus, B.J., Tabima, J.F., Shakya, S.K., Judelson, H.S., Grunwald, N.J. 2020. Genome-wide increased copy number is associated with emergence of dominant clones of the Irish potato famine pathogen Phytophthora infestans. mBio. 11(3). https://doi.org/10.1128/mBio.00326-20.
Unexpected conservation and global transmission of agrobacterial virulence plasmids - (Peer Reviewed Journal)
Weisberg, A., Davis, E.W., Tabima, J., Belcher, M.S., Miller, M., Kuo, C., Lai, E., Loper, J.E., Grunwald, N.J., Putnam, M.L., Chang, J.H. 2020. Unexpected conservation and global transmission of agrobacterial virulence plasmids. Science. 368(6495). https://doi.org/10.1126/science.aba5256.
Population diversity and structure of Podosphaera macularis in the Pacific Northwestern U.S. and other populations - (Peer Reviewed Journal)
Gent, D.H., Claassen, B.J., Gadoury, D.M., Grunwald, N.J., Knaus, B.J., Radisek, S., Weldon, W., Wiseman, M.S., Wolfenbarger, S.N. 2020. Population diversity and structure of Podosphaera macularis in the Pacific Northwestern U.S. and other populations. Phytopathology. 110(5):1106-1116. https://doi.org/10.1094/PHYTO-12-19-0448-R.
First report of the NA2 clonal lineage of Phytophthora ramorum in Indiana causing ramorum leaf blight on Rhododendron - (Peer Reviewed Journal)
Press, C.M., Fieland, V.J., Creswell, T., Bonkowski, J., Miles, L., Grunwald, N.J. 2020. First report of the NA2 clonal lineage of Phytophthora ramorum in Indiana causing ramorum leaf blight on Rhododendron. Plant Disease. 104(6):1875. https://doi.org/10.1094/PDIS-12-19-2543-PDN.
Botrytis cinerea populations infecting small fruit hosts in the Pacific Northwest are highly structured on a local scale - (Peer Reviewed Journal)
Kozhar, O., Larsen, M.M., Grunwald, N.J., Peever, T.L. 2020. Botrytis cinerea populations infecting small fruit hosts in the Pacific Northwest are highly structured on a local scale. Applied and Environmental Microbiology. 86(9):e02908-19. https://doi.org/10.1128/AEM.02908-19.
Soilborne Phytophthora and Pythium diversity from rhododendron in propagation, container, and field production systems of the Pacific Northwest - (Peer Reviewed Journal)
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Davis, E.A., Beck, B.R., Foster, Z.S., Fieland, V.J. 2020. Soilborne Phytophthora and Pythium diversity from rhododendron in propagation, container, and field production systems of the Pacific Northwest. Plant Disease. 104(6):1841-1850. https://doi.org/10.1094/PDIS-08-19-1672-RE.
The composition of the fungal and oomycete microbiome of Rhododendron roots under varying growth conditions, nurseries, and cultivars - (Peer Reviewed Journal)
Foster, Z.S., Weiland, G.E., Scagel, C.F., Grunwald, N.J. 2020. The composition of the fungal and oomycete microbiome of Rhododendron roots under varying growth conditions, nurseries, and cultivars. Phytobiomes Journal. 4(2):156-164. https://doi.org/10.1094/PBIOMES-09-19-0052-R.
Geospatial analytics for plant disease management - ()
Magarey, R., Meentemeyer, R., Grunwald, N.J. 2020. Geospatial analytics for plant disease management. Book Chapter. -.
Genetic differentiation and clonal expansion of Chinese Botrytis cinerea populations from tomato and other crops in China - (Peer Reviewed Journal)
Diao, Y., Larsen, M.M., Kamvar, Z.N., Zhang, C., Wang, W., Li, D., Peng, Q., Knaus, B.J., Foster, Z.S., Grunwald, N.J., Liu, X. 2019. Genetic differentiation and clonal expansion of Chinese Botrytis cinerea populations from tomato and other crops in China. Phytopathology. 110(2):428-439. https://doi.org/10.1094/PHYTO-09-18-0347-R.
Genetic diversity of Verticillium dahliae isolates from mint detected with genotyping by sequencing - (Peer Reviewed Journal)
Dung, J., Knaus, B.J., Fellows, H., Grunwald, N.J., Vining, K. 2019. Genetic diversity of Verticillium dahliae isolates from mint detected with genotyping by sequencing. Phytopathology. 109(11):1966-1974. https://doi.org/10.1094/PHYTO-12-18-0475-R.
Are traded forest tree seeds a potential source of nonnative pests? - (Peer Reviewed Journal)
Franic, I., Prospero, S., Hartmann, M., Allan, E., Auger-Rozenberg, M., Grunwald, N.J., Kenis, M., Roques, A., Schneider, S., Sniezko, R., Williams, W., Eschen, R. 2019. Are traded forest tree seeds a potential source of nonnative pests? Ecological Applications. 29(7). https://doi.org/10.1002/eap.1971.
Genotyping-by-sequencing reveals fine-scale population differentiation in populations of Pseudoperonospora humuli - (Peer Reviewed Journal)
Gent, D.H., Adair, N.L., Knaus, B.J., Grunwald, N.J. 2019. Genotyping-by-sequencing reveals fine-scale population differentiation in populations of Pseudoperonospora humuli. Phytopathology. https://doi.org/10.1094/PHYTO-12-18-0485-R.
Population genetic structure and cryptic species of Plasmopara viticola in Australia - (Peer Reviewed Journal)
Taylor, A.S., Knaus, B.J., Grunwald, N.J., Burgess, T. 2019. Population genetic structure and cryptic species of Plasmopara viticola in Australia. Phytopathology. 109(11):1975-1983. https://doi.org/10.1094/PHYTO-04-19-0146-R.
From genomes to forest management – tackling invasive Phytophthora species in the era of genomics - ()
Kerio, S., Daniels, H., Gomez-Gollego, M., Tabima, J., Lenz, R., Sondreli, K., Grunwald, N.J., Williams, N., Mcdougal, R., Leboldus, J. 2019. From genomes to forest management – tackling invasive Phytophthora species in the era of genomics. Canadian Journal of Plant Pathology. 42(1):1-29. https://doi.org/10.1080/07060661.2019.1626910.
Ecology and evolution of the sudden oak death pathogen Phytophthora ramorum - ()
Grunwald, N.J., LeBoldus, J.M., Hamelin, R.C. 2019. Ecology and evolution of the sudden oak death pathogen Phytophthora ramorum. Annual Review of Phytopathology. 57:301-321. https://doi.org/10.1146/annurev-phyto-082718-100117.
Population structure of Globisporangium cryptoirregulare from Rhododendron nurseries in Oregon - (Abstract Only)
Freire-Zapata, V., Calderon, P., Proaño, F., Scagel, C.F., Ward, C., Muñoz, Y.S., Grünwald, N.J., Weiland, J.E., Garzon, C. 2019. Population structure of Globisporangium cryptoirregulare from rhododendron nurseries in Oregon. Phytopathology. 109:S2.172.
effectR: An expandable R package to predict candidate effectors - (Peer Reviewed Journal)
Tabima, J.F., Grunwald, N.J. 2019. effectR: An expandable R package to predict candidate effectors. Molecular Plant-Microbe Interactions. 32(9):1067-1076. https://doi.org/10.1094/MPMI-10-18-0279-TA.
Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2015 - ()
Press, C.M., Rolfe, K.J., Grunwald, N.J. 2019. Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2015. Plant Disease Management Reports. 12:OT027.
Geospatial analytics for plant disease management - ()
Margarey, R., Meentemeyer, R., Grunwald, N.J. 2020. Geospatial analytics for plant disease management. In: J.B. Ristanio and A. Records, editors. Emerging Plant Diseases and Global Food Security. St. Paul, MN: APS Publications. p. 221-237.
Population structure of Phytophthora plurivora on Rhododendron in Oregon nurseries - (Peer Reviewed Journal)
Carleson, N.C., Fieland, V.J., Scagel, C.F., Weiland, G.E., Grunwald, N.J. 2019. Population structure of Phytophthora plurivora on Rhododendron in Oregon nurseries. Plant Disease. 103(8):1923-1930. https://doi.org/10.1094/PDIS-12-18-2187-RE.
Mitotic recombination and a two-speed genome shape the evolution of asexual lineages of the sudden oak death pathogen Phytophthora ramorum - (Peer Reviewed Journal)
Dale, A.L., Feau, N., Everhart, S.E., Dhillon, B., Wong, B., Sheppard, J., Bilodeau, G.J., Brar, A., Tabima, J.F., Brasier, C.M., Grunwald, N.J., Hamelin, R.C. 2019. Mitotic recombination and a two-speed genome shape the evolution of asexual lineages of the sudden oak death pathogen Phytophthora ramorum. mBio. 10(2):e02452-18. https://doi.org/10.1128/mBio.02452-18.
Referee report for: Ranacapa: An R package and Shiny web app to explore environmental DNA data with exploratory statistics and interactive visualizations - ()
Grunwald, N.J., Foster, Z. 2018. Referee report for: Ranacapa: An R package and Shiny web app to explore environmental DNA data with exploratory statistics and interactive visualizations. F1000Research. 7:1734. https://doi.org/10.5256/f1000research.18233.r40128.
Insights into evolving global populations of Phytophthora infestans via new complementary mtDNA haplotype markers and nuclear SSRs - (Peer Reviewed Journal)
Martin, F.N., Zhang, Y., Cooke, D.E.L., Coffey, M.D., Grunwald, N.J., Fry, W.E. 2019. Insights into evolving global populations of Phytophthora infestans via new complementary mtDNA haplotype markers and nuclear SSRs. PLoS One. 14(1):e0208606. https://doi.org/10.1371/journal.pone.0208606.
Phytophthora urerae sp. nov., a new clade 1c relative of the Irish famine pathogen Phytophthora infestans from South America - (Peer Reviewed Journal)
Grunwald, N.J., Forbes, G.A., Perez-Barrera, W., Stewart, J.E., Fieland, V.J., Larsen, M.M. 2018. Phytophthora urerae sp. nov., a new clade 1c relative of the Irish famine pathogen Phytophthora infestans from South America. Phytopathology. 68(3):557-565. https://doi.org/10.1111/ppa.12968.
Expansion and divergence of Argonaute genes in the Oomycete genus Phytophthora - (Peer Reviewed Journal)
Bollman, S.R., Press, C.M., Tyler, B.M., Grunwald, N.J. 2018. Expansion and divergence of Argonaute genes in the Oomycete genus Phytophthora. Frontiers in Microbiology. 9:2841. https://doi.org/10.3389/fmicb.2018.02841.
Disease control of Phytophthora plurivora and other Phytophthora species infecting European beech and rhododendron in the United States - (Abstract Only)
Weiland, G.E., Grunwald, N.J., Scagel, C.F. 2018. Disease control of Phytophthora plurivora and other Phytophthora species infecting European beech and rhododendron in the United States. Meeting Abstract for LIFE+ ELMIAS Ash and Elm, and IUFRO WP 7.02.01 Root and Stem Rots Conference (LIFE-IUFRO); 2018. Aug 26-Sept 1; Uppsala and Visby, Sweden.
Evolution of the U.S. biological select agent Rathayibacter toxicus - (Peer Reviewed Journal)
Davis, E.W., Tabima, J.F., Weisberg, A.J., Lopes, L.D., Wiseman, M.S., Wiseman, M.S., Pupko, T., Belcher, M.S., Sechler, A.J., Tancos, M.A., Schroeder, B.K., Murray, T.D., Luster, D.G., Schneider, W.L., Rogers, E.E., Andreote, F., Grunwald, N.J., Putman, M.L., Chang, J.H. 2018. Bacteriophage NCPPB3778 and a type I-E CRISPR drive the evolution of the U.S. biological select agent Rathayibacter toxicus. mBio. 9:e01280-18.
Stable predictive markers for Phytophthora sojae avirulence genes that impair infection of soybean uncovered by whole genome sequencing of 31 isolates - (Peer Reviewed Journal)
Arsenault-Labrecque, G., Sonah, H., Lebreton, A., Labbé, C., Marchand, G., Xue, A., Belzile, F., Knaus, B.J., Grunwald, N.J., Bélanger, R.R. 2018. Stable predictive markers for Phytophthora sojae avirulence genes that impair infection of soybean uncovered by whole genome sequencing of 31 isolates. BMC Biology. 16:80. https://doi.org/10.1186/s12915-018-0549-9.
Variation in disease severity caused by Phytophthora cinnamomi, P. plurivora, and Pythium cryptoirregulare on two rhododendron cultivars - (Peer Reviewed Journal)
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Davis, E.A., Beck, B.R. 2018. Variation in disease severity caused by Phytophthora cinnamomi, P. plurivora, and Pythium cryptoirregulare on two rhododendron cultivars. Plant Disease. https://doi.org/10.1094/PDIS-04-18-0666-RE.
Response to comments on “Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management” - (Peer Reviewed Journal)
Chang, J.H., Putnam, M.L., Grunwald, N.J., Savory, E.A., Fuller, S.L., Weisberg, A.J. 2018. Response to comments on “Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management”. eLife. 7:e35852. https://doi.org/10.7554/eLife.35852.
Inferring variation in copy number using high throughput sequencing data in R - (Peer Reviewed Journal)
Knaus, B.J., Grunwald, N.J. 2018. Inferring variation in copy number using high throughput sequencing data in R. Frontiers in Genetics. 9:123. https://doi.org/10.3389/fgene.2018.00123.
Taxa: An R package implementing data standards and methods for manipulation of taxonomic data - (Peer Reviewed Journal)
Foster, Z.S., Chamberlain, S., Grunwald, N.J. 2018. Taxa: An R package implementing data standards and methods for manipulation of taxonomic data. F1000Research. 7:272. https://doi.org/10.12688/f1000research.14013.1.
Variation in genetic diversity of Phytophthora infestans populations in Mexico from the center of origin outwards - (Peer Reviewed Journal)
Shakya, S.K., Larsen, M.M., Condoy Cuenca, M.M., Lozoya-Saldana, H., Grunwald, N.J. 2018. Variation in genetic diversity of Phytophthora infestans populations in Mexico from the center of origin outwards. Plant Disease. 102(8):1534-1540. https://doi.org/10.1094/PDIS-11-17-1801-RE.
Populations of Phytophthora rubi show little differentiation and high rates of migration among states in the Western United States - (Peer Reviewed Journal)
Tabima, J.F., Coffey, M.D., Zasada, I.A., Grunwald, N.J. 2018. Populations of Phytophthora rubi show little differentiation and high rates of migration among states in the Western United States. Molecular Plant-Microbe Interactions. 31(6):614-622. https://doi.org/10.1094/MPMI-10-17-0258-R.
Heroes and villains: Research identifies harmful and beneficial microbes in nursery soil - ()
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Foster, Z., Fieland, V., Santamaria, L. 2018. Heroes and villains: Research identifies harmful and beneficial microbes in nursery soil. Digger. March:25-29.
Genetic diversity of Phytophthora pluvialis, a pathogen of conifers, in New Zealand and the west coast of the United States of America - (Peer Reviewed Journal)
Brar, S., Tabima, J.F., Mcdougal, R.L., Dupont, P.Y., Feau, N., Hamelin, R.C., Panda, P., Leboldus, J.M., Grunwald, N.J., Hansen, E.M., Bradshaw, R.E., Williams, N.M. 2018. Genetic diversity of Phytophthora pluvialis, a pathogen of conifers, in New Zealand and the west coast of the United States of America. Plant Pathology. 67:1131–1139. https://doi.org/10.1111/ppa.12812.
Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management - (Peer Reviewed Journal)
Savory, E., Fuller, S., Weisberg, A., Thomas, W., Gordon, M., Stevens, D., Creason, A., Belcher, M., Serdani, M., Wiseman, M., Putnam, M., Grunwald, N.J., Chang, J. 2017. Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management. eLife. 6:e30925. https://doi.org/10.7554/eLife.30925.
Comparing methods for inducing root rot of Rhododendron with Phytophthora cinnamomi and P. plurivora - (Abstract Only)
Mestas, A., Weiland, G.E., Beck, B.R., Davis, E.A., Grunwald, N.J., Scagel, C.F. 2017. Comparing methods for inducing root rot of Rhododendron with Phytophthora cinnamomi and P. plurivora [abstract]. Phytopathology. 107:S5.189. https://doi.org/10.1094/PHYTO-107-12-S5.180.
First report of Phytophthora ramorum lineage EU1 infecting douglas-fir and grand fir in Oregon - (Peer Reviewed Journal)
Leboldus, J.M., Sondreli, K.L., Sutton, W., Reeser, P., Navarro, S., Kanaskie, A., Grunwald, N.J. 2017. First report of Phytophthora ramorum lineage EU1 infecting douglas-fir and grand fir in Oregon. Plant Disease. 102(2):455. https://doi.org/10.1094/pdis-05-17-0681-pdn.
Phytophthora betacei, a new species within Phytophthora clade 1c causing late blight on Solanum betaceum in Colombia - (Peer Reviewed Journal)
Mideros, M.F., Turissini, D.A., Guayazán, N., Ibarra-Avila, H., Danies, G., Cárdenas, M., Myers, K., Tabima, J., Goss, E.M., Bernal, A., Lagos, L.E., Grajales, A., Gonzalez, L.N., Cooke, D.E., Fry, W.E., Grunwald, N.J., Matute, D.R., Restrepo, S. 2018. Phytophthora betacei, a new species within Phytophthora clade 1c causing late blight on Solanum betaceum in Colombia. Persoonia: Molecular Phylogeny and Evolution of Fungi. 41:39–55. https://doi.org/10.3767/persoonia.2018.41.03.
The sudden oak death epidemic in Oregon - ()
Navarro, S., Lujan, M.A., Mcaninch, G.L., Goheen, E., Grunwald, N.J., Larsen, M.M., Fieland, V., Tabima, J., Leboldus, J. 2017. The sudden oak death epidemic in Oregon. Digger. Available: http://www.diggermagazine.com/growing-knowledge-201709/.
Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2014 - (Peer Reviewed Journal)
Press, C.M., Rolfe, K.J., Weiland, G.E., Grunwald, N.J. 2017. Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2014. Plant Disease Management Reports. 11:OT035.
Whole genome sequences of the raspberry and strawberry pathogens Phytophthora rubi and P. fragariae - (Peer Reviewed Journal)
Tabima, J.F., Kronmiller, B.F., Press, C.M., Tyler, B.M., Zasada, I.A., Grunwald, N.J. 2017. Whole genome sequences of the raspberry and strawberry pathogens Phytophthora rubi and P. fragariae. Molecular Plant-Microbe Interactions. 30(10):767-769. https://doi.org10.1094/MPMI-04-17-0081-A.
Irrigation affects severity of root rot caused by Phythophthora plurivora and P. cinnamomi on rhododendron - (Abstract Only)
Scagel, C.F., Weiland, G.E., Grunwald, N.J., Davis, E.A., Beck, B.R., Mitchell, J.N. 2017. Irrigation affects severity of root rot caused by Phythophthora plurivora and P. cinnamomi on rhododendron. Abstract for American Society for Horticultural Science Annual Conference; Sept 19-22; Waikoloa, HI.
Fungicides reduce Rhododendron root rot and mortality caused by Phytophthora cinnamomi, but not by P. plurivora - (Abstract Only)
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Davis, E.A., Mitchell, J.N., Beck, B.R. 2017. Fungicides reduce Rhododendron root rot and mortality caused by Phytophthora cinnamomi, but not by P. plurivora. Abstract for American Society for Horticultural Science Annual Conference; Sept 19-22; Waikoloa, HI.
Best practices for population genetic analyses - (Peer Reviewed Journal)
Grunwald, N.J., Everhart, S.E., Knaus, B.J., Kamvar, Z.N. 2017. Best practices for population genetic analyses. Phytopathology. 107(9):1000-1010. https://doi.org/10.1094/PHYTO-12-16-0425-RVW.
The effects of cultivar, production system, and nursery on the composition of the rhizosphere microbiome of cultivated rhododendrons in Oregon - (Abstract Only)
Foster, Z.S., Weiland, G.E., Scagel, C.F., Grunwald, N.J. 2017. The effects of cultivar, production system, and nursery on the composition of the rhizosphere microbiome of cultivated rhododendrons in Oregon [abstract]. Phytopathology. 107:S5.4. https://doi.org/10.1094/PHYTO-107-12-S5.1.
Metacoder: An R package for visualization and manipulation of community taxonomic diversity data - (Peer Reviewed Journal)
Foster, Z.S., Sharpton, T.J., Grunwald, N.J. 2017. Metacoder: An R package for visualization and manipulation of community taxonomic diversity data. PLoS Computational Biology. 13(2):e1005404. doi:10.1371/journal.pcbi.1005404.
High levels of diversity and population structure in the potato late blight pathogen at the Mexico centre of origin - (Peer Reviewed Journal)
Wang, J., Fernandez-Pavia, S.P., Larsen, M.M., Garay-Serrano, E., Gregorio-Cipriano, R., Rodriguez-Alvarado, G., Grunwald, N.J., Goss, E.M. 2017. High levels of diversity and population structure in the potato late blight pathogen at the Mexico centre of origin. Molecular Ecology. 26(4):1091-1107. doi: 10.1111/mec.14000.
Development and validation of polymorphic microsatellite loci for the NA2 lineage of Phytophthora ramorum from whole genome sequence data - (Peer Reviewed Journal)
Gagnon, M., Feau, N., Dale, A.L., Dhillon, B., Hamelin, R.C., Brasier, C.M., Grunwald, N.J., Briere, S.C., Bilodeau, G.J. 2017. Development and validation of polymorphic microsatellite loci for the NA2 lineage of Phytophthora ramorum from whole genome sequence data. Plant Disease. 101(5):666-673. doi: 10.1094/PDIS-11-16-1586-RE.
Towards an integrated ecosystem of R packages for the analysis of population genetic data - ()
Paradis, E., Gosselin, T., Grunwald, N.J., Jombart, T., Manel, S., Lapp, H. 2016. Towards an integrated ecosystem of R packages for the analysis of population genetic data. Molecular Ecology Resources. 17(1):1-4. doi:10.1111/1755-0998.12636.
Genetic variation within clonal lineages of Phytophthora infestans revealed through genotyping-by-sequencing, and implications for late blight epidemiology - (Peer Reviewed Journal)
Hansen, Z.R., Everts, K.L., Fry, W.E., Gevens, A.J., Grunwald, N.J., Gugino, B.K., Johnson, D.A., Johnson, S.B., Judelson, H.S., Knaus, B.J., McGrath, M.T., Myers, K.L., Ristaino, P.D., Roberts, P.D., Secor, G.A., Smart, C.D. 2016. Genetic variation within clonal lineages of Phytophthora infestans revealed through genotyping-by-sequencing, and implications for late blight epidemiology. PLoS One. 11(11):e0165690. doi:10.1371/journal.pone.0165690.
Microbe-ID: An open source toolbox for microbial genotyping and species identification - (Peer Reviewed Journal)
Tabima, J.F., Everhart, S.E., Larsen, M.M., Weisberg, A.J., Kamvar, Z.N., Tancos, M.A., Smart, C.D., Chang, J.H., Grunwald, N.J. 2016. Microbe-ID: An open source toolbox for microbial genotyping and species identification. PeerJ. 4:e2279. doi: 10.7717/peerj.2279.
Diversity of foliar Phytophthora species on Rhododendron in Oregon nurseries - (Proceedings)
Knaus, B.J., Graham, K.A., Grunwald, N.J., Fieland, V.J. 2017. Diversity of foliar Phytophthora species on Rhododendron in Oregon nurseries. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 76 p.
Gall-ID: Tools for genotyping gall-causing phytopathogenic bacteria - (Peer Reviewed Journal)
Davis, E.W., Weisberg, A.J., Tabima, J., Grunwald, N.J., Chang, J.H. 2016. Gall-ID: Tools for genotyping gall-causing phytopathogenic bacteria. PeerJ. 4:e2222. doi: 10.7717/peerj.2222.
Analysis of populations of the sudden oak death pathogen in Oregon forests - (Proceedings)
Kamvar, Z.N., Hansen, E.M., Kanaskie, A.M., Larsen, M.M., Grunwald, N.J. 2017. Analysis of populations of the sudden oak death pathogen in Oregon forests. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 40 p.
Slowing spread of sudden oak death in Oregon forests, 2001-2015 - (Proceedings)
Kanaskie, A., Wiese, R., Norlander, D., Laine, J., Navarro, S., Goheen, E.M., Rhatigan, R., Hansen, E., Sutton, W., Reeser, P., Grunwald, N.J., Kamvar, Z., Osterbauer, N. 2017. Slowing spread of sudden oak death in Oregon forests, 2001-2015. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 1 p.
Soil moisture and temperature conditions affect survival and sporulation capacity of Rhododendron leaf disks infested with Phytophthora ramorum - (Proceedings)
Peterson, E.K., Grunwald, N.J., Parke, J.L. 2017. Soil moisture and temperature conditions affect survival and sporulation capacity of Rhododendron leaf disks infested with Phytophthora ramorum. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 81 p.
Incubation of Phytophthora ramorum-infested leaf debris in soil affects survival, sporulation capacity, and subsequent risk of epidemic development within nurseries - (Proceedings)
Peterson, E.K., Grunwald, N.J., Parke, J.L. 2017. Incubation of Phytophthora ramorum-infested leaf debris in soil affects survival, sporulation capacity, and subsequent risk of epidemic development within nurseries. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 48 p.
Genomic analyses of dominant U.S. clonal lineages of Phytophthora infestans reveals a shared common ancestry for clonal lineages US11 and US18 and a lack of recently shared ancestry among all other U.S. lineages - (Peer Reviewed Journal)
Knaus, B.J., Tabima, J.F., Davis, C.E., Judelson, H.S., Grunwald, N.J. 2016. Genomic analyses of dominant U.S. clonal lineages of Phytophthora infestans reveals a shared common ancestry for clonal lineages US11 and US18 and a lack of recently shared ancestry among all other U.S. lineages. Phytopathology. 106(11):1393-1403. doi: 10.1094/PHYTO-10-15-0279-R.
Population genomics of fungal and oomycete pathogens - ()
Grunwald, N.J., McDonald, B.A., Milgroom, M.G. 2016. Population genomics of fungal and oomycete pathogens. Annual Review of Phytopathology. 54:323-346. doi:10.1146/annurev-phyto-080614-115913.
VCFR: A package to manipulate and visualize variant call format data in R - (Peer Reviewed Journal)
Knaus, B.J., Grunwald, N.J. 2016. VCFR: A package to manipulate and visualize variant call format data in R. Molecular Ecology Resources. 17(1):44-53. doi: 10.1111/1755-0998.12549.
Developing educational resources for population genetics in R: An open and collaborative approach - (Peer Reviewed Journal)
Kamvar, Z.N., Lopez-Uribe, M.M., Coughlan, S., Grunwald, N.J., Lapp, H., Manel, S. 2016. Developing educational resources for population genetics in R: An open and collaborative approach. Molecular Ecology Resources. 17(1):120-128. doi: 10.1111/1755-0998.12558.
Host-induced aneuploidy and phenotypic diversification in the Sudden Oak Death pathogen Phytophthora ramorum - (Peer Reviewed Journal)
Kasuga, T., Bui, M.Q., Berhardt, E., Swiecki, T., Aram, K., Cano, L.M., Webber, J., Brasier, C., Press, C.M., Grunwald, N.J., Rizzo, D.M., Garbelotto, M. 2016. Host-induced aneuploidy and phenotypic diversification in the Sudden Oak Death pathogen Phytophthora ramorum. BMC Genomics. 17:385. doi: 10.1186/s12864-016-2717-z.
Genetic analysis of Phytophthora nicotianae populations from different hosts using microsatellite markers - (Peer Reviewed Journal)
Biasi, A., Martin, F.N., Cacciola, S.O., Magnano Di San Lio, G., Grunwald, N.J., Schena, L. 2016. Genetic analysis of Phytophthora nicotianae populations from different hosts using microsatellite markers. Phytopathology. 106(9):1006-1014. doi: 10.1094/PHYTO-11-15-0299-R.
Diverse evolutionary trajectories for small RNA biogenesis genes in the oomycete genus Phytophthora - (Peer Reviewed Journal)
Bollmann, S.R., Fang, Y., Press, C.M., Tyler, B.M., Grunwald, N.J. 2016. Diverse evolutionary trajectories for small RNA biogenesis genes in the oomycete genus Phytophthora. Frontiers in Plant Science. 7:284. doi: 10.3389/fpls.2016.00284.
Loop-mediated isothermal amplification for detection of the tomato and potato late blight pathogen, Phytophthora infestans - (Peer Reviewed Journal)
Hansen, Z.R., Knaus, B.J., Tabima, J.F., Judelson, H.S., Grunwald, N.J., Smart, C.D. 2016. Loop-mediated isothermal amplification for detection of the tomato and potato late blight pathogen, Phytophthora infestans. Journal of Applied Microbiology. 120(4):1010–1020. doi: 10.1111/jam.13079.
SNP-based differentiation of Phytophthora infestans clonal lineages using locked nucleic acid probes and high resolution melt analysis - (Peer Reviewed Journal)
Hansen, Z.R., Knaus, B.J., Tabima, J.F., Press, C.M., Judelson, H.S., Grunwald, N.J., Smart, C.D. 2016. SNP-based differentiation of Phytophthora infestans clonal lineages using locked nucleic acid probes and high resolution melt analysis. Plant Disease. 100(7):1297-1306. doi: 10.1094/PDIS-11-15-1247-RE.
First report of the EU1 clonal lineage of Phytophthora ramorum on tanoak in an Oregon forest - (Peer Reviewed Journal)
Grunwald, N.J., Larsen, M.M., Kamvar, Z.N., Reeser, P.W., Kanaskie, A., Laine, J., Wiese, R. 2016. First report of the EU1 clonal lineage of Phytophthora ramorum on tanoak in an Oregon forest. Plant Disease. 100(5):1024. doi: 10.1094/PDIS-10-15-1169-PDN
Novel R tools for analysis of genome-wide population genetic data with emphasis on clonality - (Peer Reviewed Journal)
Kamvar, Z.N., Brooks, J.C., Grunwald, N.J. 2015. Novel R tools for analysis of genome-wide population genetic data with emphasis on clonality. Frontiers in Genetics. 6:208. doi: 10.3389/fgene.2015.00208.
Identification of QTL controlling high levels of partial resistance to Fusarium solani f. sp. pisi in pea - (Peer Reviewed Journal)
Coyne, C.J., Pilet-Nayel, M., McGee, R.J., Porter, L., Smykal, P., Grunwald, N.J., Inglis, D. 2015. Identification of QTL controlling high levels of partial resistance to Fusarium solani f. sp. pisi in pea. Plant Breeding. 134:446-453.
Soilborne Diseases of the Nursery Industry: USDA-ARS and OSU Team Up to Tackle this Pernicious Problem - ()
Weiland, G.E., Scagel, C.F., Grunwald, N.J., Foster, Z., Santamaria, L. 2015. Soilborne Diseases of the Nursery Industry: USDA-ARS and OSU Team Up to Tackle this Pernicious Problem. Digger. 59(7):33-36.
Five reasons to consider Phytophthora infestans a reemerging pathogen - ()
Fry, W.E., Birch, P.R., Judelson, H.S., Grunwald, N.J., Danies, G., Everts, K.L., Gevens, A.J., Gugino, B.K., Johnson, D.A., Johnson, S.B., Mcgrath, M.T., Myers, K.L., Ristaino, J.B., Roberts, P.D., Secor, G., Smart, C.D. 2015. Five reasons to consider Phytophthora infestans a reemerging pathogen. Phytopathology. 105:966-981.
Diversity of foliar Phytophthora species on Rhododendron in Oregon nurseries - (Peer Reviewed Journal)
Knaus, B.J., Fieland, V.J., Graham, K., Grunwald, N.J. 2015. Diversity of foliar Phytophthora species on Rhododendron in Oregon nurseries. Plant Disease. 99(10):1326-1332. https://doi.org/10.1094/PDIS-09-14-0964-RE.
Spatial and temporal analysis of populations of the Sudden Oak Death pathogen in Oregon forests - (Peer Reviewed Journal)
Kamvar, Z.N., Larsen, M.M., Kanaskie, A.M., Hansen, E.M., Grunwald, N.J. 2015. Spatial and temporal analysis of populations of the Sudden Oak Death pathogen in Oregon forests. Phytopathology. 105:982-989.
Fungicide sensitivity of US genotypes of Phytophthora infestans (Mont.) de Bary to six oomycete-targeted compounds. - (Peer Reviewed Journal)
Saville, A., Graham, K., Grunwald, N.J., Myers, K., Fry, W.E., Ristaino, J.B. 2015. Fungicide sensitivity of US genotypes of Phytophthora infestans (Mont.) de Bary to six oomycete-targeted compounds. Plant Disease. 99:659-666.
Identification and distribution of the mating-type idiomorphs in populations of Podosphaera macularis and development of chasmothecia of the fungus - (Peer Reviewed Journal)
Wolfenbarger, S.N., Twomey, M.C., Gadoury, D., Knaus, B.J., Grunwald, N.J., Gent, D.H. 2015. Identification and distribution of the mating-type idiomorphs in populations of Podosphaera macularis and development of chasmothecia of the fungus. Plant Pathology. 64:1094-1102.
Efficacy of management tools for control of Pythium root rot of Douglas-fir seedlings, 2013 - (Peer Reviewed Journal)
Grunwald, N.J., Press, C.M., Rolfe, K.J., Weiland, G.E., Davis, E.A. 2015. Efficacy of management tools for control of Pythium root rot of Douglas-fir seedlings, 2013. Plant Disease Management Reports. 9:OT004.
Population structure of Pythium irregulare, P. sylvaticum, and P. ultimum in forest nursery soils of Oregon and Washington - (Peer Reviewed Journal)
Weiland, G.E., Garrido, P., Kamvar, Z.N., Marek, S.M., Grunwald, N.J., Garzon, C.D. 2015. Population structure of Pythium irregulare, P. sylvaticum, and P. ultimum in forest nursery soils of Oregon and Washington. Phytopathology. 105(5):684-694.
An ephemeral sexual population of Phytophthora infestans in the northeastern United States and Canada - (Peer Reviewed Journal)
Danies, G., Myers, K., Mideros, M.F., Restrepo, S., Martin, F.N., Cooke, D.E., Smart, C.D., Ristaino, J.B., Seaman, A.J., Gugino, B.K., Grunwald, N.J., Fry, W.E. 2014. An ephemeral sexual population of Phytophthora infestans in the northeastern United States and Canada. PLoS One. 9(12):e116354. doi: 10.1371/journal.pone.0116354.
Sudden Oak Death in Oregon forests: Recent disease intensification and spread, and changes to the management program - (Proceedings)
Kanaskie, A., Goheen, E.M., Hansen, E., Reeser, P., Sutton, W., Grunwald, N.J., Rhatigan, R., Wiese, R., Laine, J. 2015. Sudden Oak Death in Oregon forests: Recent disease intensification and spread, and changes to the management program. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 81p.
Tools for rapid characterization of Phytophthora infestans and Phytophthora ramorum using real-time PCR and microsatellites from genomic resources - (Proceedings)
Bilodeau, G.J., Gagnon, M., Levesque, C.A., Kawchuk, L., Wijekoon, C.P., Feau, N., Bergeron, M., Grunwald, N.J., Brasier, C.M., Webber, J.F., Hamelin, R.C. 2015. Tools for rapid characterization of Phytophthora infestans and Phytophthora ramorum using real-time PCR and microsatellites from genomic resources. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 33 p.
What is a species? You be the judge - (Proceedings)
Brasier, C., Grunwald, N.J., Hansen, E., Resser, P., Sims, L., Sutton, W. 2015. What is a species? You be the judge. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 109 p.
The top 10 oomycete pathogens in molecular plant pathology - ()
Kamoun, S., Furzer, O., Jones, J.D., Judelson, H.S., Ali, G., Dalio, R.J., Roy, S., Schena, L., Zampounis, A., Panabieres, F., Cahill, D., Ruocco, M., Figueirdo, A., Chen, X., Hulvey, J., Stam, R., Lamour, K., Gizen, M., Tyler, B.M., Grunwald, N.J., Tor, M., Mukhtar, S.M., Tome, D., Ackerveken, G., Mcdowell, J., Daayf, F., Fry, W.E., Lindqvist-Kreuze, H., Meijer, H.J., Petre, B., Ristaino, J., Yoshida, K., Birch, P., Govers, F. 2015. The top 10 oomycete pathogens in molecular plant pathology. Molecular Plant Pathology. 16:413:434.
Real-time PCR assay to distinguish the four Phytophthora ramorum lineages using cellulose binding elicitor lectin (CBEL) locus - (Peer Reviewed Journal)
Gagnon, M.C., Bergeron, M.J., Hamelin, R.C., Grunwald, N.J., Bilodeau, G.J. 2014. Real-time PCR assay to distinguish the four Phytophthora ramorum lineages using cellulose binding elicitor lectin (CBEL) locus. Canadian Journal of Plant Pathology. 36(3):367-376.
Knowing your Phytophthora - ()
Grunwald, N.J. 2014. Knowing your Phytophthora. Digger. 9:33-35.
Lineage, temperature, and host species have interacting effects on lesion development in Phytophthora ramorum - (Peer Reviewed Journal)
Eyre, C.A., Hayden, K.J., Kozanitas, M., Grunwald, N.J., Garbelotto, M. 2014. Lineage, temperature, and host species have interacting effects on lesion development in Phytophthora ramorum. Plant Disease. 98(12):1717-1727.
Pathogenicity, fungicide resistance, and genetic variability of Phytophthora rubi isolates from raspberry (Rubus idaeus) in the Western United States - (Peer Reviewed Journal)
Stewart, J.E., Kroese, D.R., Tabima, J.F., Larsen, M.M., Fieland, V.J., Press, C.M., Zasada, I.A., Grunwald, N.J. 2014. Pathogenicity, fungicide resistance, and genetic variability of Phytophthora rubi isolates from raspberry (Rubus idaeus) in the Western United States. Plant Disease. 98:1702-1708.
Speciation in fungal and oomycete plant pathogens - (Peer Reviewed Journal)
Restrepo, S., Tabima, J.F., Mideros, M.F., Grunwald, N.J., Matute, D.R. 2014. Speciation in fungal and oomycete plant pathogens. Annual Review of Phytopathology. 52:289-316.
The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes - (Peer Reviewed Journal)
Goss, E.M., Tabima, J.F., Cooke, D., Restrepo, S., Fry, W.E., Forbes, G.A., Fieland, V.J., Cardenas, M., Myers, K.L., Grunwald, N.J. 2014. The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes. Proceedings of the National Academy of Sciences. 111(24):8791-8796.
Phytophthora community structure analyses in Oregon nurseries inform systems approaches to disease management - (Peer Reviewed Journal)
Parke, J.L., Fieland, V.J., Lewis, C., Knaus, B.J., Grunwald, N.J. 2014. Phytophthora community structure analyses in Oregon nurseries inform systems approaches to disease management. Phytopathology. 104(10):1052-1062.
Evolution of an experimental population of Phytophthora capsici in the field - (Peer Reviewed Journal)
Dunn, A.R., Bruening, S.R., Grunwald, N.J., Smart, C.D. 2014. Evolution of an experimental population of Phytophthora capsici in the field. Phytopathology. 104(10):1107-1117.
Release of pea germplasm with Fusarium resistance combined with desirable yield and anti-lodging traits - (Peer Reviewed Journal)
Porter, L., Grunwald, N.J., Kraft, J.M. 2014. Release of pea germplasm with Fusarium resistance combined with desirable yield and anti-lodging traits. Journal of Plant Registrations. 8:191-194.
Evolution of an experimental population of Phytophthora capsici in the field - (Peer Reviewed Journal)
Dunn, A.R., Bruening, S.R., Grunwald, N.J., Smart, C.D. 2014. Evolution of an experimental population of Phytophthora capsici in the field. Phytopathology. 104(10):1052-1062.
Poppr: an R package for genetic analysis of populations with mixed (clonal/sexual) reproduction Reprint Icon - (Peer Reviewed Journal)
Kamvar, Z.N., Tabima, J.F., Grunwald, N.J. 2014. Poppr: an R package for genetic analysis of populations with mixed (clonal/sexual) reproduction. PeerJ. 2:e281.
Phytophthora ramorum - ()
Everhart, S.E., Tabima, J.F., Grunwald, N.J. 2014. Phytophthora ramorum. In: Dean, R.A. et al. In genomics of plant-associated fungi and oomycetes: Dicot pathogens. Berlin, Germany: Springer Berlin Heidelberg. p. 159-174.
Sensitivity of Pythium irregulare, P. sylvaticum, and P. ultimum from forest nurseries to mefenoxam and fosetyl-al, and control of Pythium damping-off - (Peer Reviewed Journal)
Weiland, G.E., Santamaria, L., Grunwald, N.J. 2014. Sensitivity of Pythium irregulare, P. sylvaticum, and P. ultimum from forest nurseries to mefenoxam and fosetyl-al, and control of Pythium damping-off. Plant Disease. 98:937-942.
Evolution of RXLR-class effectors in the Oomycete plant pathogen Phytophthora ramorum - (Peer Reviewed Journal)
Goss, E.M., Press, C.M., Grunwald, N.J. 2013. Evolution of RXLR-class effectors in the Oomycete plant pathogen Phytophthora ramorum. PLoS One. 8(11):e79347. doi: 10.1371/journal.pone.0079347.
Phytophthora have distinct endogenous small RNA populations that include short interfering and microRNAs - (Peer Reviewed Journal)
Fahlgren, N., Bollmann, S.R., Kasschau, K.D., Cuperus, J.T., Press, C.M., Sullivan, C.M., Chapman, E.J., Hoyer, J.S., Gilbert, K.B., Grunwald, N.J., Carrington, J.C. 2013. Phytophthora have distinct endogenous small RNA populations that include short interfering and microRNAs. PLoS One. 8(10):e77181.
Phytophthora Database 2.0: update and future direction Reprint Icon - (Peer Reviewed Journal)
Park, B., Martin, F.N., Geiser, D., Kim, H., Mansfield, M., Nikolaeva, E., Park, S., Coffey, M., Russo, J., Kim, S., Balci, Y., Abad, G., Burgess, T., Grunwald, N.J., Cheong, K., Choi, J., Lee, Y., Kang, S. 2013. Phytophthora Database 2.0: update and future direction. Phytopathology. 103:1204-1208.
Exploring the characteristics of Pythium communities: Can knowledge about pathogen communities improve disease control? - (Abstract Only)
Weiland, G.E., Garrido, P., Grunwald, N.J., Garzon, C. 2013. Exploring the characteristics of Pythium communities: Can knowledge about pathogen communities improve disease control?. In: Phytopathology. Annual Meeting of the American Phytopathological Society, August 10-14, 2013, Austin, Texas.
Evidence for multiple introductions and clonality in Spanish populations of Fusarium circinatum - (Peer Reviewed Journal)
Berbegal, M., Perez-Sierra, A., Armengol, J., Grunwald, N.J. 2013. Evidence for multiple introductions and clonality in Spanish populations of Fusarium circinatum. Phytopathology. 103:851-861.
Efficacy of management tools for control of Pythium root rot of Douglas fir seedlings, 2010 - (Peer Reviewed Journal)
Grunwald, N.J., Press, C.M., Rolfe, K.J., Weiland, G.E., Davis, E.A. 2013. Efficacy of management tools for control of Pythium root rot of Douglas fir seedlings, 2010. Plant Disease Management Reports. 7:OT010.
The 2009 late blight pandemic in eastern USA – causes and results - ()
Fry, W.E., Mcgrath, M.T., Seaman, A., Zitter, T.A., Mcleod, A., Danies, G., Small, I.M., Myers, K., Everts, K., Gevens, A.J., Gugino, B.K., Johnson, S.B., Judelson, H., Ristaino, J., Roberts, P., Secor, G., Seebold, K., Snover-Clift, K., Wyenandt, A., Grunwald, N.J., Smart, C.D. 2013. The 2009 late blight pandemic in eastern USA – causes and results. Plant Disease. 97:296-306.
Genome analyses of an aggressive and invasive lineage of the Irish potato famine pathogen - (Peer Reviewed Journal)
The 2009 late blight pandemic in eastern USA - ()
Fry, W., Mcgrath, M.T., Seaman, A., Zitter, T.A., Mcleod, A., Danies, G., Small, I.M., Myers, K., Everts, K., Gevens, A.J., Gugino, B.K., Johnson, S.B., Judelson, H., Ristaino, J., Roberts, P., Secor, G., Seebold, K., Snover-Clift, K., Wyenandt, A., Grunwald, N.J., Smart, C.D. 2012. The 2009 late blight pandemic in eastern USA. Plant Disease. 97(3):296-306.
Population structure and genetic diversity of three species of Pythium isolated from forest tree nursery soils in Oregon and Washington - (Abstract Only)
Garrido, P., Garzon, C., Grunwald, N.J., Weiland, G.E. 2012. Population structure and genetic diversity of three species of Pythium isolated from forest tree nursery soils in Oregon and Washington. Phytopathology. 515.
Identification of Phytophthora species baited and isolated from forest soil and streams in northwestern Yunnan province, China - (Peer Reviewed Journal)
Huai, W., Tian, G., Hansen, E.M., Zhao, W., Goheen, E.M., Grunwald, N.J., Cheng, C. 2013. Identification of Phytophthora species baited and isolated from forest soil and streams in northwestern Yunnan province, China. Forest Pathology. 43(2):87–103.
Novel insights into the emergence of pathogens: the case of chestnut blight - ()
Grunwald, N.J. 2012. Novel insights into the emergence of pathogens: the case of chestnut blight. Molecular Ecology. 21:3896-3897.
Genome sequences of Phytophthora enable translational plant disease management and accelerate research - ()
Grunwald, N.J. 2012. Genome sequences of Phytophthora enable translational plant disease management and accelerate research. Canadian Journal of Plant Pathology. 34:13-19.
Emergence of the sudden oak death pathogen Phytophthora ramorum - ()
Grunwald, N.J., Garbelotto, M., Goss, E.M., Heungens, K., Prospero, S. 2012. Emergence of the sudden oak death pathogen Phytophthora ramorum. Trends in Microbiology. 20:131-138.
The plant pathogen Phytophthora andina emerged via hybridization of an unknown Phytophthora species and the Irish famine pathogen, P. infestans - (Peer Reviewed Journal)
Goss, E.M., Cardenas, M.E., Myers, K., Forbes, G.A., Fry, W.E., Restrepo, S.O., Grunwald, N.J. 2011. The plant pathogen Phytophthora andina emerged via hybridization of an unknown Phytophthora species and the Irish famine pathogen, P. infestans. PLoS One. 6(9):e24543. doi: 10.1371/journal.pone.0024543.
Phytophthora ramorum: How it got here and how it spread - ()
Grunwald, N.J. 2011. Phytophthora ramorum: How it got here and how it spread. Digger. 9:41-45.
Defining species boundaries in the genus Phytophthora: the case of Phytophthora andina. A response to “Phytophthora andina sp. nov., a newly identified heterothallic pathogen of solanaceous hosts in the Andean highlands - (Peer Reviewed Journal)
Cardenas, M.E., Tabima, J., Fry, W.E., Grunwald, N.J., Bernal, A.J., Restrepo, S.O. 2012. Defining species boundaries in the genus Phytophthora: the case of Phytophthora andina. A response to “Phytophthora andina sp. nov., a newly identified heterothallic pathogen of solanaceous hosts in the Andean highlands." Plant Pathology. 61(2):215-220.
Safe Procurement and Production Manual: A systems approach for the production of healthy nursery stock - ()
Griesbach, J.A., Parke, J.L., Chastagner, G.A., Grunwald, N.J., Aguirre, J. 2011. Safe Procurement and Production Manual: A systems approach for the production of healthy nursery stock. Wilsonville: Oregon Association of Nurseries. 108 p.
A systems approach for management of pests and pathogens of nursery crops - ()
Parke, J.L., Grunwald, N.J. 2012. A systems approach for management of pests and pathogens of nursery crops. Plant Disease. 96(9):1236-1244.
Identification of new polymorphic microsatellite markers in the NA1 and NA2 lineages of Phytophthora ramorum - (Peer Reviewed Journal)
Vercauteren, A., Larsen, M.M., Goss, E.M., Grunwald, N.J., Maes, M., Heungens, K. 2011. Identification of new polymorphic microsatellite markers in the NA1 and NA2 lineages of Phytophthora ramorum. Mycologia. 103:1245-1249.
Genetic and pathogenic relatedness of Pseudoperonospora cubensis and P. humuli - (Peer Reviewed Journal)
Mitchell, M.N., Ocamb, C.M., Grunwald, N.J., Mancino, L.E., Gent, D.H. 2011. Genetic and pathogenic relatedness of Pseudoperonospora cubensis and P. humuli. Phytopathology. 101:805-818.
Genetic diversity of Phytophthora infestans in the Northern-Andean region - (Peer Reviewed Journal)
Cardenas, M., Grajales, A., Sierra, R., Rojas, A., Garavito, M., Lozano, G., Gonzalez-Almario, A., Vargas, A., Marin, M., Fermin, G., Lagos, L.E., Grunwald, N.J., Bernal, A., Salazar, C., Restrepo, S. 2011. Genetic diversity of Phytophthora infestans in the Northern-Andean region. BMC Evolutionary Biology. 12:23.
Evolution and population genetics of exotic and re-emerging pathogens: Novel tools and approaches - ()
Grunwald, N.J., Goss, E.M. 2011. Evolution and population genetics of exotic and re-emerging pathogens: Novel tools and approaches. Annual Review of Phytopathology. 49:249-267.
Phytophthora-ID.org: a sequence-based Phytophthora identification tool - (Peer Reviewed Journal)
Grunwald, N.J., Martin, F.N., Larsen, M.M., Sullivan, C.M., Press, C.M., Coffey, M.D., Hansen Everett, M., Parke, J.L. 2011. Phytophthora-ID.org: a sequence-based Phytophthora identification tool. Plant Disease. 95(3):337-342.
Introduction to Oomycetes - ()
Fry, W.E., Grunwald, N.J. 2010. Introduction to Oomycetes. The Plant Health Instructor. DOI:10.1094/PHI-I-2010-1207-01. Available: http://www.apsnet.org/edcenter/intropp/PathogenGroups/Pages/IntroOomycetes.aspx
Phytophthora ramorum detections in Canada: evidence for migration within North America and from Europe - (Peer Reviewed Journal)
Goss, E.M., Larsen, M.M., Vercauteren, A., Werres, S., Heungens, K., Grunwald, N.J. 2011. Phytophthora ramorum detections in Canada: evidence for migration within North America and from Europe. Phytopathology. 101:166-171.
Quantitative resistance to late blight from Solanum berthaultii cosegregates with RPi-ber: insights in stability through isolates and environment - (Peer Reviewed Journal)
Rauscher, G., Simko, I., Mayton, H., Bonierbale, M., Smart, C.D., Grunwald, N.J., Greenland, A., Fry, W.E. 2010. Quantitative resistance to late blight from Solanum berthaultii cosegregates with RPi-ber: insights in stability through isolates and environment. Theoretical and Applied Genetics. 121:1553-1567.
The Promise and Pitfalls of Sequence-Based Identification of Plant Pathogenic Fungi and Oomycetes. - (Peer Reviewed Journal)
Kang, S., Mansfield, M., Park, B., Geiser, D., Coffey, M., Grunwald, N.J. 2010. The promise and pitfalls of sequence-based identification of plant pathogenic fungi and oomycetes. Phytopathology. 100: 732-737.
Permanent Genetic Resources added to Molecular Ecology Resources Database 1 December 2009–31 January 2010 - (Peer Reviewed Journal)
C., Gomez, D., Morin, L., Evans, K., Mahaffee, W.F., Neill, T.M., Grunwald, N.J.,Molecular Ecology Resources Primer Development Consortium. 2010. Permanent genetic resources added to molecular ecology resources database 1 December 2009–31 January 2010. Molecular Ecology Resources. 10:576-579.
Development of 11 polymorphic microsatellite markers for the blackberry rust fungus Phragmidium violaceum - (Peer Reviewed Journal)
Gomez, D., Morin, L., Evans, K., Mahaffee, W.F., Neill, T.M., Grunwald, N.J. 2010. Development of 11 polymorphic microsatellite markers for the blackberry rust fungus Phragmidium violaceum. Molecular Ecology Resources. 10:576-579.
Clonal Expansion of the Belgian Phytophthora ramorum Populations Based on New Microsatellite Markers - (Peer Reviewed Journal)
Vercauteren, A., De Dobbelaere, I., Grunwald, N.J., Bonants, P., Van Bockstaele, E., Maes, M., Heungens, K. 2009. Clonal expansion of the Belgian Phytophthora ramorum populations based on new microsatellite markers. Molecular Ecology. 19:92-107.
Phenotypic differences among three clonal lineages of Phytophthora ramorum - (Peer Reviewed Journal)
Elliot, M., Sumampong, G., Varga, A., Shamoun, S.F., James, D., Masri, S., Grunwald, N.J. 2011. Phenotypic differences among three clonal lineages of Phytophthora ramorum. Forest Pathology. 41:7-14.
Population Genetic Analysis Infers Migration Pathways of Phytophthora ramorum in U.S. Nurseries - (Peer Reviewed Journal)
Goss, E.M., Larsen, M.M., Chastagner, G., Givens, D., Grunwald, N.J. 2009. Population genetic analysis infers migration pathways of Phytophthora ramorum in U.S. nurseries. PLoS Pathogens. 5(9):e1000538.
The genome sequence of the Irish potato famine pathogen Phytophthora infestans - (Peer Reviewed Journal)
Hass, B., Kamoun, S., Zody, M.C., Jiang, R.H., Handsaker, R.E., Cano, L.M., Grabherr, M., Kodira, C.D., Raffaele, S., Torto-Alalibo, T., Bozkurt, T.O., O'Neill, K.O., Ah-Fong, A.M., Alvarado, L., Anderson, V.L., Armstrong, M., Avrova, A., Baxter, L., Benyon, J., Boevink, P.C., Bos, J.I., Bulone, V., Cai, G., Cakir, C., Carrington, J.C., Chawner, M., Costanzo, S., Fahlgren, N., Fugelstad, J., Gilroy, E.M., Gnerre, S., Green, `.J., Greenville-Briggs, L.J., Griffith, J., Gupta, S., Horn, K., Horner, N.R., Hu, C., Huitema, E., Jeong, D., Jones, A., Jones, J.D., Jones, R.W., Karisson, E., Lamour, K., Liu, Z., Ma, L., Maclean, D., Marcus, C., Mcdonald, H., Mcwalters, J., Meijer, H.J., Morgan, M., Morris, P.F., Munro, C.A., Ospina-Giraldo, M., Pinzon, A., Pritchard, L., Ramsahove, B., Ren, Q., Restrepo, S., Roy, S., Sadanandom, A., Savidor, A., Schornack, S., Schwartz, D.C., Schumann, U.D., Schwessinger, B., Seyer, L., Sharpe, T., Silvar, C., Song, J., Studholme, D.J., Sykes, S., Vondervoort, P.J., Vipaporn, P., Wawra, S., Weide, R., Win, J., Young, C., Zhou, S., Fry, W., Meyers, B.C., West, P.V., Ristaino, J., Govers, F., Birth, P.R., Whisson, S., Judelson, H.S., Nusbaum, C., Bollmann, S.R., Grunwald, N.J. 2009. The genome sequence of the Irish potato famine pathogen Phytophthora infestans. Nature. 461:393-398.
Standardizing the Nomenclature for Clonal Lineages of the Sudden Oak Death Pathogen, Phytophthora ramorum - (Peer Reviewed Journal)
Grunwald, N.J., Goss, E.M., Ivors, K., Garbelotto, M., Martin, F.N., Prospero, S., Hansen, E., Bonants, P., Hamelin, R., Chastagner, G., Werres, S., Rizzo, D.M., Abad, G., Beales, P., Bilodeau, G.J., Blomquist, C., Brasier, C., Briere, S., Chandelier, A., Davidson, J.M., Denman, S., Elliott, M., Fichtner, E.J., Frankel, S.J., Goheen, E.M., De Gruyter, H., Heungens, K., James, D., Kanaskie, A., Mcwilliams, M., Moralejo, E., Osterbauer, N.K., Palm, M.E., Parke, J.L., Shamoun, S.F., Shishkoff, N., Tooley, P.W., Vettraino, A., Webber, J., Widmer, T.L. 2009. Standardizing the nomenclature for clonal lineages of the sudden oak death pathogen, Phytophthora ramorum. Phytopathology. 99:792-795.
Migration Patterns of the Emerging Plant Pathogen Phytophthora ramorum on the West Coast of the United States of America - (Peer Reviewed Journal)
Prospero, S., Grunwald, N.J., Winton, L.M., Hansen, E.M. 2009. Migration patterns of the emerging plant pathogen Phytophthora ramorum on the west coast of the United States of America. Phytopathology. 99:739-749.
Evolution and Genetics of the Invasive Sudden Oak Death Pathogen Phytophthora ramorum - ()
Grunwald, N.J., Goss, E.M. 2009. Evolution and genetics of the invasive sudden oak death pathogen Phytophthora ramorum. In: Lamour, K. and Kamoun, S. editors. Oomycete Genetics and Genomics: Diversity, Interactions, and Research Tools. Hoboken, NJ. John Wiley and Sons Inc. p.179-196.
Phytophthora sojae: Diversity among and within Populations - ()
Dorrance, A., Grunwald, N.J. 2009. Phytophthora sojae: Diversity among and within populations. In: Lamour, K. and Kamoun S. editors. Oomycete Genetics and Genomics: Diversity, Interactions, and Research Tools. Hoboken, NJ. John Wiley and Sons Inc. p. 197-212.
Recovery Plan for Phytophthora kernoviae Causing Bleeding Trunk Cankers, Leaf Blight and Stem Dieback in Trees and Shrubs - ()
Benson, M., Ivors, K., Koch, F., Fichtner, E., Garbelotto, M., Rizzo, D., Tjosvold, S., Hansen, E., Parke, J., Hong, C., Chastagner, G., Jeffers, S., Woodward-Williams, J., Kim, S., Britton, K., Denitto, G., Frankel, S., Micales, J., Grunwald, N.J., Martin, F.N., Shishkoff, N., Smith, K.L., Tooley, P.W., Widmer, T.L., Bulluck, R., Burnett, G., Ferguson, L., Fowler, G., Garrett, L., Jones, J., Magarey, R., Randall-Schadel, B., Cardwell, K., Draper, M., Chand-Goyal, T. 2009. Recovery Plan for Phytophthora kernoviae Causing Bleeding Trunk Cankers, Leaf Blight and Stem Dieback in Trees and Shrubs. Government Publication/Report. Available at: http://www.ars.usda.gov/SP2UserFiles/Place/00000000/opmp/P.%20kernoviae%2081100.pdf
PCR-RFLP Markers Identify Three Lineages of the North American and European Populations of Phytophthora ramorum - (Peer Reviewed Journal)
Elliott, M., Sumampong, G., Varga, A., Shamoun, S.F., James, D., Masri, S., Briere, S.C., Grunwald, N.J. 2009. PCR-RFLP markers identify threelineages of the North American and European populations of Phytophthora ramorum. Forest Pathology. 39:266-278.
Ancient Isolation and Independent Evolution of the Three Clonal Lineages of the Emerging Sudden Oak Death Pathogen Phytophthora ramorum - (Peer Reviewed Journal)
Goss, E.M., Carbone, I., Grunwald, N.J. 2009. Ancient isolation and independent evolution of the three clonal lineages of the emerging sudden oak death pathogen Phytophthora ramorum. Molecular Ecology. 18(6):1161-1174.
Tracing the Path of Pathogens: An Ongoing Study Evaluates the Systems Approach for Managing Phytophthora Diseases in Nurseries - ()
Parke, J., Grunwald, N.J., Lewis, C. 2009. Tracing the path of pathogens: an ongoing study evaluates the systems approach for managing Phytophthora diseases in nurseries. Digger. 12:43-51.
Population Structure, Races, and Host Range of Aphanomyces euteiches from Alfalfa Production Fields in the Central U.S.A. - (Peer Reviewed Journal)
Malvick, D.K., Grunwald, N.J., Dyer, A.T. 2009. Population structure, races, and host range of Aphanomyces euteiches from alfalfa production fields in the central U.S.A. European Journal of Plant Pathology. 123(2):171-182.
Phytophthora Database: A forensic database supporting the identification and monitoring of Phytophthora - (Peer Reviewed Journal)
Park, J., Park, B., Veeraraghavan, N., Jung, K., Lee, Y., Blair, J.E., Geiser, D., Isard, S., Mansfield, M.A., Nikolaeva, E., Park, S., Kim, S.H., Greene, M., Ivors, K.L., Balci, Y., Peiman, M., Erwin, D.C., Coffey, M.D., Rossman, A.Y., Farr, D.F., Cline, E., Grunwald, N.J., Luster, D.G., Schrandt, J.K., Martin, F.N., Ribeiro, O.K., Makalowska, I., Kang, S. 2008. Phytophthora Database: A forensic database supporting the identification and monitoring of Phytophthora. Plant Disease. 92:966-972.
Phytophthora ramorum: A Pathogen with a Remarkably Wide Host Range Causing Sudden Oak Death on Oaks and Ramorum Blight on Woody Ornamentals - (Peer Reviewed Journal)
Grunwald, N.J., Goss, E.M., Press, C.M. 2008. Phytophthora ramorum: A pathogen with a remarkably wide host range causing sudden oak death on oaks and ramorum blight on woody ornamentals. Molecular Plant Pathology. 9(6):729-740.
Effect of Isolate, Environment and a Defeated R-gene (RPi-ber) on Quantitative Resistance of Potato to Late Blight - (Peer Reviewed Journal)
Rauscher, G.M., Mayton, H., Bonierbale, M., Simko, I., Smart, C., Grunwald, N.J., Fry, W. Effect of Isolate, Environment and a Defeated R-gene (RPi-ber) on Quantitative Resistance of Potato to Late Blight. American Phytopathological Society Annual Meeting, Minneapolis, Minnesota, July 26-July 30. Phytopathology 98:S130.
Registration of W6 26740, W6 26743 and W6 26745 green pea germplasm resistant to Fusarium root rot. - (Peer Reviewed Journal)
Coyne, C.J., Porter, L., Inglis, D.A., Grunwald, N.J., Mcphee, K.E., Muehlbauer, F.J. 2008. Registration of W6 26740, W6 26743 and W6 26745 Green Pea Germplasm Resistant to Fusarium Root Rot. Journal of Plant Registrations (2008) Vol 2, No. 2, 137-139.
First Report of the European Lineage of Phytophthora ramorum in a California Nursery - (Peer Reviewed Journal)
Grunwald, N.J., Goss, E.M., Larsen, M.M., Press, C.M., Mcdonald, V.T., Blomquist, C.L., Thomas, S.L. 2008. First report of the European lineage of Phytophthora ramorum in a California nursery. Plant Disease. 92:314.
Marker Stability throughout 400 Days of Hyphal Growth of Sclerotinia sclerotiorum - (Peer Reviewed Journal)
Kohn, L., Anderson, J.B., Schaffer, M.R., Grunwald, N.J. 2008. Marker stability throughout 400 Days of hyphal growth of Sclerotinia sclerotiorum. Fungal Genetics and Biology. 45:613-617.
Susceptibility in Viburnum to Phytophthora ramorum - (Peer Reviewed Journal)
Grunwald, N.J., Kitner, M., Mcdonald, V., Goss, E.M. 2008. Susceptibility in Viburnum to Phytophthora ramorum. Plant Disease. 92:210-214.
Effect of Flooding on Root and Foliar Disease Severity on Rhododendron Caused by Phytophthora ramorum - (Proceedings)
Grunwald, N.J., Kitner, M., Linderman, R.G. 2008. Effect of flooding on root and foliar disease severity on Rhododendron caused by Phytophthora ramorum. Sudden Oak Death Science Symposium. p. 363-365.
Global Gene Expression Profiles of Phytophthora ramorum strain Pr102 in Response to Plant Host and Tissue Differentiation - (Proceedings)
Grunwald, N.J., Press, C.M. 2008. Global gene expression profiles of Phytophthora ramorum strain Pr102 in response to plant host and tissue differentiation. Sudden Oak Death Science Symposium. p. 435.
What Can Availability of the Phytophthora ramorum Genome Do for Us? - (Proceedings)
Grunwald, N.J. 2008. What can availability of the Phytophthora ramorum genome do for us?. Sudden Oak Death Science Symposium. p.233-238.
Molecular Evolution of an Avirulence Homolog (Avh) Gene Subfamily in Phytophthora ramorum - (Proceedings)
Goss, E.M., Press, C.M., Grunwald, N.J. 2008. Molecular evolution of an avirulence homolog (Avh) gene subfamily in Phytophthora ramorum. Sudden Oak Death Science Symposium. p. 361.
Population Structure of Phytophthora ramorum in Oregon - (Proceedings)
Prospero, S., Britt, J., Grunwald, N.J., Hansen, E.M. 2008. Population Structure of Phytophthora ramorum in Oregon. Proceedings of the Sudden Oak Death Science Symposium. p. 239-242.
Development of Codominant simple sequence repeat, single nucleotide polymorphism and sequence characterized amplified region markers for the pea root rot pathogen, Aphanomyces euteiches. - (Peer Reviewed Journal)
Akamatsu, H. O., Grünwald, N. J., Chilvers, M. I., Porter, L. D., and Peever, T. L. 2007. Development of codominant simple sequence repeat, single nucleotide polymorphism and sequence characterized amplified region markers for the pea root rot pathogen, Aphanomyces euteiches. Journal of Microbiological Methods 71: 82-86.
First Report of Haplotype I-b of Phytophthora infestans in central Mexico - (Peer Reviewed Journal)
Garay-Serrano, E., Fernandez-Pavia, S., Rodriguez-Alvarado, G., Lozoya-Saldana, H., Rojas-Martinez, R.I., Goss, E.M., Grunwald, N.J. 2007. First report of haplotype I-b of Phytophthora infestans in central Mexico. Plant Disease. 91(7):909.
Population Dynamics of the Sudden Oak Death Pathogen Phytophthora ramorum in Oregon from 2001 to 2004 - (Peer Reviewed Journal)
Prospero, S., Hansen, E.M., Grunwald, N.J., Winton, L.M. 2007. Population dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon from 2001 to 2004. Molecular Ecology. 16:2958-2973.
New Populations of Sclerotinia sclerotiorum from Lettuce in California and Peas and Lentils in Washington - (Peer Reviewed Journal)
Malvarez, G., Carbone, I., Grunwald, N.J., Subbarao, K.V., Schafer, M., Kohn, L.M. 2007. New populations of Sclerotinia sclerotiorum from lettuce in California and peas and lentils in Washington. Phytopathology. 97(4): 470-483.
PHYTOPHTHORA GENOME SEQUENCES UNCOVER EVOLUTIONARY ORIGINS AND MECHANISMS OF PATHOGENESIS - (Peer Reviewed Journal)
Tyler, B.M., Tripathy, S., Zhang, X., Dehal, P., Jiang, R.H., Aerts, A., Arredondo, F.D., Baxter, L., Bensasson, D., Beynon, J.L., Chapman, J., Damasceno, C.M., Dorrance, A.E., Dou, D., Dickerman, A.W., Dubchak, I.L., Garbelotto, M., Gijzen, M., Gordon, S.G., Govers, F., Grunwald, N.J., Huang, W., Ivors, K.L., Jones, R.W., Kamoun, S., Krampis, K., Lamour, K.H., Lee, M., Maclean, D.J., Mcdonald, W.H., Medina, M., Meiger, H.J., Morris, P.F., Nordberg, E.K., Ospina-Giraldo, M.D., Phuntumart, V., Putnam, N.H., Rash, S., Rose, J.K., Sakihama, Y., Salamov, A.A., Savidor, A., Scheuring, C.F., Smith, B.M., Sobral, B.W., Terry, A., Torto-Alalibo, T.A., Win, J., Xu, Z., Zhang, H., Grigoriev, I.V., Rokhsar, D.S., Boore, J.L. 2006. Phytophthora genome sequences uncover evolutionary origins and mechanisms of pathogenesis. Science. 313:1261-1266.
SELECTION FOR FUNGICIDE RESISTANCE WITHIN A GROWING SEASON IN FIELD POPULATIONS OF PHYTOPHTHORA INFESTANS AT THE CENTER OF ORIGIN - (Peer Reviewed Journal)
Grunwald, N.J., Sturbaum, A.K., Romero Montes, G., Garay Serrano, E., Lozoya-Saldana, H., Fry, W.E. 2006. Selection for fungicide resistance within a growing season in field populations of Phytophthora infestans at the center of origin. Phytopathology. 96(12):1397-1403.
HEIRARCHICAL ANALYSIS OF DIVERSITY, SELFING AND GENETIC DIFFERENTIATION IN POPULATIONS OF THE OOMYCETE APHANOMYECES EUTEICHES - (Peer Reviewed Journal)
Grunwald, N.J., Hoheisel, G. 2006. Heirarchical analysis of diversity, selfing and genetic differentiation in populations of the oomycete aphanomyeces euteiches. Phytopathology. 96(10):1134-1141.
Plant Pathogen Culture Collections: It Takes a Village to Preserve These Resources Vital to the Advancement of Agricultural Security and Plant Pathology - ()
Kang, S., Blair, J.E., Geiser, D.M., Khang, C., Park, S., Gahegan, M., O Donnell, K., Luster, D.G., Kim, S.H., Ivors, K.L., Lee, Y., Lee, Y., Grunwald, N.J., Martin, F.N., Coffey, M.D., Veeraraghavan, N., Makalowska, I. 2006. Plant pathogen culture collections: It takes a village to preserve these resources vital to the advancement of agricultural security and plant pathology. Phytopathology. 96:920-925.
EFFECT OF FLOODING ON ROOT AND FOLIAR DISEASE SEVERITY ON RHODODENDRON CAUSED BY PHYTOPHTHORA RAMORUM - (Abstract Only)
Grunwald, N.J., Kitner, M., Linderman, R.G. 2006. Effect of flooding on root and foliar disease severity on Rhododendron caused by Phytophthora ramorum. Phytopathology. 96:S43.
POPULATION DIVERGENCE IN PHYTOPHTHORA RAMORUM - (Abstract Only)
Grunwald, N.J., Prospero, S., Hansen, E., Tyler, B., Lamour, K. 2006. Population divergence in Phytophthora ramorum. Mycological Society of America Abstracts. p.197.
EVALUATION OF INFECTION POTENTIAL AND SPORULATION OF PHYTOPHTHORA RAMORUM ON FIVE RHODODENDRON CULTIVARS - (Abstract Only)
McDonalad, V., Grunwald, N.J., Linderman, R.G. 2006. Evaluation of infection potential and sporulation of Phytophthora ramorum on five Rhododendron cultivars. Phytopathology. 96:S75.
EVOLUTION AND STRUCTURE OF POPULATIONS OF PHYTOPHTHORA INFESTANS AND RELATIVES AT THEIR CENTER OF ORIGIN - (Abstract Only)
Grunwald, N.J. 2006. Evolution and structure of populations of Phytophthora infestans and relatives at their center of origin. Phytopathology. 96:S147.
CLONING OF CANDIDATE MICRORNAS FROM PHYTOPHTHORA SOJAE AND P. RAMORUM - (Abstract Only)
Grunwald, N.J., Press, C.M., Carrington, J.C. 2006. Cloning of candidate micrornas from phytophthora sojae and p. ramorum. p. 12.
POPULATION BIOLOGY OF THE OOMYCETE APHANOMYCES EUTEICHES: A HIERARCHICAL ANALYSIS OF DIVERSITY, SELFING AND GENETIC DIFFERENTIATION - (Abstract Only)
Grunwald, N.J. 2006. Population biology of the oomycete aphanomyces euteiches: a hierarchical analysis of diversity, selfing and genetic differentiation. Proceedings of the Oomycete Molecular Genetics Network. p.30.
EVALUATION OF RESISTANCE AND FUNGICIDE APPLICATIONS FOR MANAGEMENT OF WHITE MOLD ON DRY BEAN - (Peer Reviewed Journal)
Grunwald, N.J., Miklas, P.N. 2006. Evaluation of resistance and fungicide applications for management of white mold on dry bean. Fungicide and Nematocide Tests. 61:FC040.
CHARACTERIZATION OF PHYTOPHTHORA INFESTANS (MONT.) DE BARY. II. SUBPOPULATIONS OBTAINED FROM WILD SOLANUM SPECIES - (Peer Reviewed Journal)
Lozoya-Saldana, H., Perales-Rosas, D., Fernandez-Pavia, S.P., Grunwald, N.J. 2006. Characterization of phytophthora infestans (mont.) de bary. ii. subpopulations obtained from wild solanum species. Agrociencia. 40:325.
CONTROL OF FUSARIUM ROOT ROT WITH A MUSTARD GREEN MANURE, 2003 - (Peer Reviewed Journal)
Grunwald, N.J., Collins, H.P., Mcguire, A. 2006. Control of fusarium root rot with a mustard green manure, 2003. Biol. Cult. Tests. 21: Vo 25
SCREENING TECHNIQUES AND SOURCES OF RESISTANCE TO ROOT DISEASES IN COOL SEASON FOOD LEGUMES - (Peer Reviewed Journal)
Infantino, A., Kharrat, M., Riccioni, L., Coyne, C.J., Mcphee, K.E., Grunwald, N.J. 2006. Screening techniques and sources of resistance to root diseases in cool season food legumes. Euphytica 147:201-221.
EVALUATION OF LILAC CULTIVARS FOR SUSCEPTIBILITY TO PHYTOPHTHORA RAMORUM - (Peer Reviewed Journal)
Grunwald, N.J., Kitner, M.L., Larsen, M.M., Linderman, R.G., Parke, J.L. 2006. Evaluation of lilac cultivars for susceptibility to phytophthora ramorum. Biological and Cultural Tests for Control of Plant Diseases. 21:O005.
EVALUATION OF VIBURNUM CULTIVARS FOR SUSCEPTIBILITY TO PHYTOPHTHORA RAMORUM - (Peer Reviewed Journal)
Grunwald, N.J., Kitner, M.L., Larsen, M.M., Linderman, R.G. 2006. Evaluation of viburnum cultivars for susceptibility to phytophthora ramorum. Biological and Cultural Tests for Control of Plant Diseases. 23:O006.
POTENTIAL APPLICATION OF TRAP (TARGETED REGION AMPLIFIED POLYMORPHISM) MARKERS FOR MAPPING AND TAGGING DISEASE RESISTANCE TRAITS IN COMMON BEAN - (Peer Reviewed Journal)
Miklas, P.N., Hu, J., Grunwald, N.J., Larsen, K.M. 2006. Potential application of TRAP (Targeted Region Amplified Polymorphism) markers for mapping and tagging disease resistance traits in common bean. Crop Science. 46:910-916.
PHYTOPHTHORA INFESTANS (MONT.) DE BARY. I. HOST-PATHOGEN SPECIFICITY AND RESISTANCE COMPONENTS - (Peer Reviewed Journal)
Lozoya-Saldana, H., Guzman-Galindo, L., Fernandez-Pavia, S., Grunwald, N.J., Mcelhinny, E. 2006. Phytophthora infestans (mont.) de bary. i. host-pathogen specificity and resistance components. Agrociencia. 40:205.
QUALIFICATION OF A PLANT DISEASE SIMULATION MODEL: PERFORMANCE OF THE LATEBLIGHT MODEL ACROSS A BROAD RANGE OF ENVIRONMENTS - (Peer Reviewed Journal)
Andrade-Piedra, J.L., Forbes, G.A., Shtienberg, D., Grunwald, N.J., Taipe, M.V., Hijmans, R.J., Fry, W.E. 2005. Qualification of a plant disease simulation model: performance of the lateblight model across a broad range of environments. Phytopathology. 95:1412-1422.
INFLUENCE OF NITROGEN FERTILIZATION ON INCIDENCE OF POTATO LATE BLIGHT IN TOLUCA, MEXICO - (Peer Reviewed Journal)
Rubio-Covarrubias, O.A., Grunwald, N.J., Cadena-Hinojosa, M.A. 2005. Influence of nitrogen fertilization on incidence of potato late blight in toluca, mexico. Terra Journal. 23:487-493.
THE BIOLOGY OF PHYTOPHTHORA INFESTANS AT ITS CENTER OF ORIGIN - (Peer Reviewed Journal)
Grunwald, N.J., Flier, W.G. 2005. The biology of phytophthora infestans at its center of origin. Annual Review of Phytopathology. 43:171-190.
GENETIC DIVERSITY OF SCLEROTINIA SCLEROTIORUM FROM A SINGLE LENTIL FIELD. - (Abstract Only)
FIRST PLANT DISEASE LESSON PUBLISHED IN SPANISH - ()
Grunwald, N.J., Ploetz, R. 2005. First plant disease lesson published in spanish. Phytopathology News.39(5):61-62.
SIMPLE SEQUENCE REPEAT ABUNDANCE AND DISTRIBUTION IN TWO OOMYCETE GENOMES: PHYTOPHTHORA SOJAE AND P. RAMORUM - (Abstract Only)
Grunwald, N.J., Tripathi, S., Ivors, K., Lamour, K.H., Tyler, B.M. 2005. Simple sequence repeat abundance and distribution in two oomycete genomes: phytophthora sojae and p. ramorum. Fungal Genetics Conference Proceedings. p64.
GENOME SEQUENCE OF PHYTOPHTHORA RAMORUM: IMPLICATIONS FOR MANAGEMENT - (Abstract Only)
Tyler, B., Tripathi, S., Grunwald, N.J., Lamour, K., Ivors, K., Garbelotto, M., Putnam, N., Grigoriev, I., Rokhsar, D., Boore, J. 2004. Genome sequence of Phytophthora ramorum: Implications for management [abstract]. Sudden Oak Death Science Symposium. p42.
VARIATION IN PHENOTYPE FOR RESISTANCE TO PHYTOPHTHORA RAMORUM IN A RANGE OF SPECIES AND CULTIVARS OF THE GENUS VIBURNUM - (Abstract Only)
Grunwald, N.J., Scheuerell, S., Davis, E.A., Linderman, R.G. 2004. Variation in phenotype for resistance to Phytophthora ramorum in a range of species and cultivars of the genus Viburnum [abstract]. Sudden Oak Death Science Symposium II. p. 29.
FIRST REPORT OF BLIGHT ON IPOMOEA PURPUREA CAUSED BY PHYTOPHTHORA IPOMOEAE - (Peer Reviewed Journal)
Badillo-Ponce, G., Fernandez-Pavia, S.P., Grunwald, N.J., Garay-Serrano, E., Rodriguez-Alvarado, G., Lozoya-Saldana, H. 2004. First report of blight on ipomoea purpurea caused by phytophthora ipomoeae. Plant Disease. 88:1283.
USE OF REAL-TIME PCR TO EXAMINE THE RELATIONSHIP BETWEEN DISEASE SEVERITY IN PEA AND APHANOMYCES EUTEICHES DNA CONTENT IN ROOTS - (Peer Reviewed Journal)
Vandemark, G.J., Grunwald, N.J. 2005. Use of real-time PCR to examine the relationship between disease severity in pea and Aphanomyces euteiches DNA content in roots. European Journal of Plant Pathology. 111:309-316.
CHANGES IN SOIL MICROBIAL DIVERSITY DURING THE CONVERSION OF A NATIVE SHRUB-STEPPE TO AN IRRIGATED AGROECOSYSTEM II - (Abstract Only)
Cochran, R.L., Collins, H.P., Kennedy, A.C., Grunwald, N.J. 2004. Changes in soil microbial diversity during the conversion of a native shrub-steppe to an irrigated agroecosystem ii. American Society of Agronomy Abstracts.
TRAP MARKERS FOR DISEASE RESISTANCE IN COMMON BEAN - (Abstract Only)
Miklas, P.N., Hu, J., Grunwald, N.J., Bosak, K. 2004. Trap markers for disease resistance in common bean. American Society of Agronomy Abstracts. Madison, WI. No. 3496.
POTENTIAL APPLICATION OF TRAP MARKERS FOR TAGGING DISEASE RESISTANCE TRAITS IN COMMON BEAN - (Proceedings)
Miklas, P.N., Hu, J., Grunwald, N.J. 2004. Potential application of trap markers for tagging disease resistance traits in common bean. Proceedings of the Bean Improvement Cooperative, Oct 27-29, Sacramento, CA, 2003. In Annual Report Bean Improvement Coop. 47:79-80.
LOW DIVERSITY OF VEGETATIVE COMPATIBILITY TYPES AND MATING TYPE OF CRYPHONECTRIA PARASITICA IN THE SOUTHERN BALKANS - (Peer Reviewed Journal)
Sotirovski, K., Papazov, I., Grunwald, N.J., Milgroom, M.G. 2004. Low diversity of vegetative compatibility types and mating type of cryphonectria parasitica in the southern Balkans. Plant Pathology. 53:325-333.
POPULATION STRUCTURE OF SCLEROTINIA SCLEROTIORUM IN A PEA FIELD IN THE PACIFIC NORTHWEST - (Abstract Only)
FIRST REPORT OF PYTHIUM IRREGULARE ON LENTILS IN THE UNITED STATES. - (Peer Reviewed Journal)
Paulitz, T.C., Dugan, F.M., Chen, W., Grunwald, N.J. 2004. First report of pythium irregulare on lentils in the united states. Plant Disease. 88 (3). p. 310-310. 2004
REACTION OF MEDICAGO TRUNCATULA TO APHANOMYCES EUTEICHES RACE 2 - (Peer Reviewed Journal)
VANDEMARK, G.J., GRUNWALD, N.J. REACTION OF MEDICAGO TRUNCATULA TO APHANOMYCES EUTEICHES RACE 2. ARCHIVES OF PHYTOPATHOLOGY AND PLANT PROTECTION.37:59-67.
DETECTION AND QUANTIFICATION OF OOPORES OF PHYTOPHTHORA INFESTANS (MONT.) DE BARY IN SOILS FROM CULTIVATED AND WILD POTATO IN CENTRAL MEXICO - (Peer Reviewed Journal)
PROCEEDINGS OF THE SECOND INTERNATIONAL APHANOMYCES WORKSHOP - (Proceedings)
GRUNWALD, N.J., COYNE, C.J. (Eds.) 2003. PROCEEDINGS OF THE SECOND INTERNATIONAL APHANOMYCES WORKSHOP. UNITED STATE DEPARTMENT OF AGRICULTURE-AGRICULTURAL RESEARCH SERVICE, PROSSER, WA. 112 pp.
SOIL-BORNE OOSPORES OF PHYTOPHTHORA INFESTANS IN CENTRAL MEXICO SURVIVE INTERCROPPING PERIODS AND INFECT POTATO PLANTS IN THE FIELD - (Peer Reviewed Journal)
FERNANDEZ-PAVIA, S.P., GRUNWALD, N.J., DIAZ-VALASIS, M., CADENA-HINOJOSA, M., FRY, W.E. SOIL-BORNE OOSPORES OF PHYTOPHTHORA INFESTANS IN CENTRAL MEXICO SURVIVE INTERCROPPING PERIODS AND INFECT POTATO PLANTS IN THE FIELD. PLANT DISEASE. 88:29-33. 2003.
SOIL-BORNE OOSPORES OF PHYTOPHTHORA INFESTANS IN CENTRAL MEXICO SURVIVE WINTER FALLOW AND INFECT POTATO PLANTS IN THE FIELD - (Peer Reviewed Journal)
Fernandez-Pavia, S.P., Grunwald, N.J., Diaz-Valasis, M., Cadena-Hinojosa, M., Fry, W.E. 2004. Soil-borne oospores of phytophthora infestans in central mexico survive winter fallow and infect potato plants in the field. Plant Disease 88:29-33.
THE BIOLOGY OF THE GENUS APHANOMYCES - (Proceedings)
GRUNWALD, N.J. THE BIOLOGY OF THE GENUS APHANOMYCES. INTERNATIONAL APHANOMYCES SYMPOSIUM. P 7-14. 2003.
WITHIN FIELD PHENOTYPIC AND GENOTYPIC DIVERSITY IN APHANOMYCES EUTEICHES - (Proceedings)
GRUNWALD, N.J. WITHIN FIELD PHENOTYPIC AND GENOTYPIC DIVERSITY IN APHANOMYCES EUTEICHES. INTERNATIONAL APHANOMYCES SYMPOSIUM. P. 60-66. 2003.
WITHIN FIELD POPULATION STRUCTURE OF APHANOMYCES EUTEICHES - (Abstract Only)
GRUNWALD, N.J. WITHIN FIELD POPULATION STRUCTURE OF APHANOMYCES EUTEICHES. NORTH AMERICAN PULSE IMPROVEMENT ASSOCIATION. p. 6. 2003.
RESISTANCE TO FUSARIUM ROOT ROT IN THE PISUM CORE COLLECTION - (Abstract Only)
GRUNWALD, N.J., COFFMAN, V.A., KRAFT, J., COYNE, C.J. RESISTANCE TO FUSARIUM ROOT ROT IN THE PISUM CORE COLLECTION. NORTH AMERICAN PULSE IMPROVEMENT ASSOCIATION. p. 14. 2003.
GENETICS OF PARTIAL RESISTANCE TO APHANOMYCES ROOT ROT IN PEA - (Proceedings)
PILET-NAYEL, M.L., DORMEGNIES, T., MCGEE, R.J., ESNAULT, R., MANGIN, P., ROUX-DUPARQUE, M., GRUNWALD, N.J., BARANGER, A., COYNE, C.J. GENETICS OF PARTIAL RESISTANCE TO APHANOMYCES ROOT ROT IN PEA. International Aphanomyces Symposium. P 72-75. 2003.
EFFECT OF PLANT ACTIVATORS ON SOIL-RHIZOSPHERE MICROBIAL COMMUNITIES - (Abstract Only)
COLLINS, H.P., GRUNWALD, N.J., NAVARRE, D.A., PIERCE, F.J. EFFECT OF PLANT ACTIVATORS ON SOIL-RHIZOSPHERE MICROBIAL COMMUNITIES. AMERICAN SOCIETY OF AGRONOMY ABSTRACTS - CD, SO3-Collins 760503. 2003.
SOIL MICROBIAL RESPONSES TO CONVERSION OF NATIVE SHRUB-STEPPE ECOSYSTEM TO IRRIGATED AGROECOSYSTEM - (Abstract Only)
COCHRAN, R.L., COLLINS, H.P., GRUNWALD, N.J., KENNEDY, A.C. SOIL MICROBIAL RESPONSES TO CONVERSION OF NATIVE SHRUB-STEPPE ECOSYSTEM TO IRRIGATED AGROECOSYSTEM. AMERICAN SOCIETY OF AGRONOMY ABSTRACTS - CD-SO3, Cochran 697377. 2003.
PROSSER HIGH SCHOOL SENIOR DEMONSTRATES THAT RHIZOCTONIA ORYZAE IS A NOVEL PATHOGEN OF PEA FOLLOWING KOCH'S POSTULATES - ()
GRUNWALD, N.J. PROSSER HIGH SCHOOL SENIOR DEMONSTRATES THAT RHIZOCTONIA ORYZAE IS A NOVEL PATHOGEN OF PEA FOLLOWING KOCH'S POSTULATES. AMERICAN PHYTOPATHOLOGICAL SOCIETY PRESS ON LINE LESSONS. 2003.
SOURCES OF PARTIAL RESISTANCE TO FUSARIUM ROOT ROT IN THE PISUM CORE COLLECTION - (Peer Reviewed Journal)
GRUNWALD, N.J., COFFMAN, V.A., KRAFT, J.M. SOURCES OF PARTIAL RESISTANCE TO FUSARIUM ROOT ROT IN THE PISUM CORE COLLECTION. PLANT DISEASE. 2003. 87(10):1197-1200.
RESISTANCE IN MEXICAN POTATO GERMPLASM TO LATE BLIGHT IS HIGH AND DURABLE - (Abstract Only)
Grunwald, N.J., Cadena Hinojosa, M.A., Rubio Covarrubias, O., Rivera Pena, A., Lozoya-Saldana, H., Brown, C.R., Fry, W.E. 2004. Resistance in mexican potato germplasm to late blight is high and durable. American Journal of Potato Research. 81:61.
ADOPTING CONSERVATION TILLAGE IN IRRIGATED CROPPING SYSTEMS - (Proceedings)
COLLINS, H.P., PIERCE, F., BOYDSTON, R.A., GRUNWALD, N.J., MUNYANEZA, J.E. ADOPTING CONSERVATION TILLAGE IN IRRIGATED CROPPING SYSTEMS. 42ND ANNUAL WASHINGTON STATE POTATO CONFERENCE PROCEEDINGS, FEB. 2-6,2003, MOSES LAKE, WA, WASHINGTON STATE POTATO COMMISSION, P. 81-92. 2003.
EVALUATION OF PLANT ACTIVATORS FOR MANAGEMENT OF FUSARIUM ROOT ROT ON GREEN PEA - (Peer Reviewed Journal)
GRUNWALD, N.J., NAVARRE, D.A., COFFMAN, V.A. EVALUATION OF PLANT ACTIVATORS FOR MANAGEMENT OF FUSARIUM ROOT ROT ON GREEN PEA. FUNGICIDE AND NEMATICIDE TESTS. F & N TESTS 58:V001. 2003.
PEA DISEASES AND THEIR MANAGEMENT - ()
GRUNWALD, N.J., LARSEN, R.C., CHEN, W. PEA DISEASES AND THEIR MANAGEMENT. DISEASE MANAGEMENT OF FRUITS AND VEGETABLES, VOLUME II: VEGETABLE DISEASES. IN PRESS.
SAMPLING AND AFLP FINGERPRINTING OF WHITE MOLD ISOLATES FROM PEA AND LENTIL IN THE PACIFIC NORTHWEST - (Proceedings)
GRUNWALD, N.J., CHEN, W., KOHN, L.M. SAMPLING AND AFLP FINGERPRINTING OF WHITE MOLD ISOLATES FROM PEA AND LENTIL IN THE PACIFIC NORTHWEST. Proceedings of the International Sclerotinia Workshop. 2003. p. 28.
ANALYSIS OF POPULATION GENOTYPIC DIVERSITY DATA: ASPECTS OF RICHNESS, EVENNESS, AND DIVERSITY. - (Peer Reviewed Journal)
GRUNWALD, N.J., GOODWIN, S.B., MILGROOM, M.G., FRY, W.E. ANALYSIS OF POPULATION GENOTYPIC DIVERSITY DATA: ASPECTS OF RICHNESS, EVENNESS, AND DIVERSITY.. PHYTOPATHOLOGY. 93:738-741. 2003.
POPULATION SUBSTRUCTURING OF PHYTOPHTHORA INFESTANS ON AMERICAN POTATO CLONES IN THE TOLUCA VALLEY, MEXICO - (Peer Reviewed Journal)
LOZOYA-SALDANA, H., GRUNWALD, N.J., GARAY-SERRANO, E., STURBAUM-ABUD, A., BROWN, C.R., BELMAR, C. POPULATION SUBSTRUCTURING OF PHYTOPHTHORA INFESTANS ON AMERICAN POTATO CLONES IN THE TOLUCA VALLEY, MEXICO. ACTA HORTICULTURAE, 619:183-188. 2003.
EVALUATION OF LENTIL CULTIVARS FOR RESISTANCE TO WHITE MOLD - (Proceedings)
CHEN, W., GRUNWALD, N.J., MCPHEE, K.E., MUEHLBAUER, F.J. EVALUATION OF LENTIL CULTIVARS FOR RESISTANCE TO WHITE MOLD. PROCEEDINGS OF THE INTERNATIONAL SCLEROTINIA WORKSHOP. 2003. p. 17.
SOURCES OF RESISTANCE TO FUSARIUM ROOT ROT - (Abstract Only)
GRUNWALD, N.J., COFFMAN, V.A., KRAFT, J.M. SOURCES OF RESISTANCE TO FUSARIUM ROOT ROT. PHYTOPATHOLOGY. 2003. 93:S30.
QUANTIFYING APHANOMYCES EUTEICHES IN PEA WITH A REAL TIME FLUORESCENT PCR ASSAY - (Abstract Only)
VANDEMARK, G.J., GRUNWALD, N.J. QUANTIFYING APHANOMYCES EUTEICHES IN PEA WITH A REAL TIME FLUORESCENT PCR ASSAY. PHYTOPATHOLOGY. 2003. 93:S86.
EXPLORING THE RELATIONSHIP BETWEEN ALLELES AND EPIDEMICS: THE CASE OF POTATO LATE BLIGHT - (Abstract Only)
GRUNWALD, N.J. EXPLORING THE RELATIONSHIP BETWEEN ALLELES AND EPIDEMICS: THE CASE OF POTATO LATE BLIGHT. PHYTOPATHOLOGY. 2003. 93:S107.
CONTRASTING GENOTYPIC DIVERSITY IN SOIL BORNE VS. AERIAL PHYTOPHTHORA INFESTANS POPULATIONS FROM CENTRAL MEXICO - (Abstract Only)
FERNANDEZ-PAVIA, S.P., GRUNWALD, N.J., GARAY-SERRANO, E., BELMAR-DIAZ, C., DIAZ-VALASIS, M., CADENA-HINOJOSA, M., RODRIGUEZ-ALVARADO, G. CONTRASTING GENOTYPIC DIVERSITY IN SOIL BORNE VS. AERIAL PHYTOPHTHORA INFESTANS POPULATIONS FROM CENTRAL MEXICO. PHYTOPATHOLOGY. 2003. 93:S25.
FIELD EVALUATION OF LENTIL CULTIVARS FOR RESISTANCE TO SCLEROTINIA SCLEROTIORUM - (Peer Reviewed Journal)
CHEN,W. ., GRUNWALD,N.J., MCPHEE,K.E., MUEHLBAUER,F.J. FIELD EVALUATION OF LENTIL CULTIVARS FOR RESISTANCE TO SCLEROTINIA SCLEROTIORUM. BIOLOGICAL AND CULTURAL TESTS FOR CONTROL OF PLANT DISEASES. Vol. 18. F010. DOI:10.1094/BC18. 2003.
THE POPULATION STRUCTURE OF PHYTOPHTHORA INFESTANS FROM THE TOLUCA VALLEY OF CENTRAL MEXICO SUGGESTS GENETIC DIFFERENTIATION BETWEEN POPULATIONS FROM CULTIVATED POTATO AND WILD SOLANUM SPP. - (Peer Reviewed Journal)
FLIER, W.G., GRUNWALD, N.J., KROON, L.P., STURBAUM, A.K., VANDEN BOSCH, T.B., GARAY-SERRANO, E., LOZOYA-SALDANA, H., FRY, W.E., TURKENSTEEN, L.J. THE POPULATION STRUCTURE OF PHYTOPHTHORA INFESTANS FROM THE TOLUCA VALLEY OF CENTRAL MEXICO SUGGESTS GENETIC DIFFERENTIATION BETWEEN POPULATIONS FROM CULTIVATED POTATO AND WILD SOLANUM SPP. PHYTOPATHOLOGY. 2003. 93:382-390.
PHYTOPHTHORA IPOMOEAE, A NEW HOMOTHALLIC SPECIES CAUSING LEAF BLIGHT ON IPOMOEA LONGIPEDUNCULATA IN THE TOLUCA VALLEY OF CENTRAL MEXICO - (Peer Reviewed Journal)
FLIER, W.G., GRUNWALD, N.J., KROON, L., VAN DEN BOSCH, T., GARAY-SERRANO, E., LOZOYA-SALDANA, H., BONANTS, P., TURKENSTEEN, L.J. PHYTOPHTHORA IPOMOEAE, A NEW HOMOTHALLIC SPECIES CAUSING LEAF BLIGHT ON IPOMOEA LONGIPEDUNCULATA IN THE TOLUCA VALLEY OF CENTRAL MEXICO. MYCOLOGICAL RESEARCH. 106(7):848-856. 2002.
POTATO LATE BLIGHT MANAGEMENT IN THE TOLUCA VALLEY: FIELD VALIDATION OF SIMCAST MODIFIED FOR CULTIVARS WITH HIGH FIELD RESISTANCE - (Peer Reviewed Journal)
GRUNWALD, N.J., ROMERO MONTES, G., LOZOYA SALDANA, H., RUBIO COVARRUBIAS, O.A., FRY, W.E. POTATO LATE BLIGHT MANAGEMENT IN THE TOLUCA VALLEY: FIELD VALIDATION OF SIMCAST MODIFIED FOR CULTIVARS WITH HIGH FIELD RESISTANCE. PLANT DISEASE. 86:1163-1168. 2002.
GENETIC STUDIES AND BREEDING OF STABLE LATE BLIGHT RESISTANCE OF POTATO IN THE UNITED STATES AND MEXICO - (Peer Reviewed Journal)
LOZOYA-SALDANA, H., HERNANDEZ-VILCHIS, A., GARAY-SERRANO, E., BROWN, C.R., GRUNWALD, N.J., HELGESON, J.P. GENETIC STUDIES AND BREEDING OF STABLE LATE BLIGHT RESISTANCE OF POTATO IN THE UNITED STATES AND MEXICO. MEXICAN JOURNAL OF PHYTOPATHOLOGY. 19(2):253-260. 2002.
POTATO CULTIVARS FROM THE MEXICAN NATIONAL PROGRAM: SOURCES AND DURABILITY OF RESISTANCE AGAINST LATE BLIGHT - (Peer Reviewed Journal)
GRUNWALD, N.J., CADENA HINOJOSA, M.A., RUBIO COVARRUBIAS, O., RIVERA PENA, A., NIEDERHAUSER, J.S., FRY, W.E. POTATO CULTIVARS FROM THE MEXICAN NATIONAL PROGRAM: SOURCES AND DURABILITY OF RESISTANCE AGAINST LATE BLIGHT. PHYTOPATHOLOGY. 92:688-693. 2002.
BREEDING FOR DURABLE RESISTANCE TO LATE BLIGHT: THE MISSING MEXICAN LINK - ()
BROWN, C.R., GRUNWALD, N.J., LOZOYA-SALDANA, H. BREEDING FOR DURABLE RESISTANCE TO LATE BLIGHT: THE MISSING MEXICAN LINK. POTATO PROGRESS. 2(5):1-3. 2002.
POPULATION SUBSTRUCTURING OF PHYTOPHTHORA INFESTANS ON AMERICAN POTATO CLONES IN THE TOLUCA VALLEY, MEXICO - (Abstract Only)
SALDANA-LOZOYA, H., GRUNWALD, N.J., GARAY-SERRANO, E., STURBAUM, A., BROWN, C.R. POPULATION SUBSTRUCTURING OF PHYTOPHTHORA INFESTANS ON AMERICAN POTATO CLONES IN THE TOLUCA VALLEY, MEXICO. ABSTRACT OF INTERNATIONAL HORTICULTURAL CONGRESS. p 122. 2002.
MANAGING POTATO LATE BLIGHT AT THE CENTER OF ORIGIN: INTEGRATING DURABLE RESISTANCE WITH A DECISION SUPPORT SYSTEM - (Abstract Only)
GRUNWALD, N.J., FRY, W.W. MANAGING POTATO LATE BLIGHT AT THE CENTER OF ORIGIN: INTEGRATING DURABLE RESISTANCE WITH A DECISION SUPPORT SYSTEM. PHYTOPATHOLOGY. 92(6):S32. 2002.
CHARACTERIZATION OF PHYTOPHTHORA INFESTANS IN MICHOACAN, MEXICO - (Abstract Only)
FERNANDEZ-PAVIA, S.P., RODRIGUEZ-ALVARADO, G., GARAY-SERRANO, E., STURBAUM, A.K., GRUNWALD, N.J., SANCHEZ-YANEZ, J.M., LOZOYA-SALDANA, H. CHARACTERIZATION OF PHYTOPHTHORA INFESTANS IN MICHOACAN, MEXICO. PHYTOPATHOLOGY. 92(6):S25. 2002.
CHARACTERIZATION OF POPULATIONS OF PHYTOPHTHORA INFESTANS FROM SOIL AND FOLIAGE COLLECTED IN CENTRAL MEXICO - (Abstract Only)
FERNANDEZ-PAVIA, S., GRUNWALD, N.J., DIAZ-VALASIS, M., GARAY-SERRANO, E., BELMAR-DIAZ, C., CADENA-HINOJOSA, M., ROMERO-MONTES, G., FRY, W.E. CHARACTERIZATION OF POPULATIONS OF PHYTOPHTHORA INFESTANS FROM SOIL AND FOLIAGE COLLECTED IN CENTRAL MEXICO. XIV INTERNATIONAL CONGRESS OF THE MEXICAN PHYTOPATHOLOGICAL SOCIETY. P 125. 2002.
FORMATION OF PHYTOPHTHORA INFESTANS OOSPORES IN NATURE ON TUBER IN CENTRAL MEXICO - (Peer Reviewed Journal)
FERNANDEZ-PAVIA, S.P., GRUNWALD, N.J., FRY, W.E. FORMATION OF PHYTOPHTHORA INFESTANS OOSPORES IN NATURE ON TUBER IN CENTRAL MEXICO. PLANT DISEASE. 86:73. 2002.
SENSITIVITY AND RESISTANCE OF THE TOLUCA VALLEY POPULATION OF PHYTOPHTHORA INFESTANS TO FUNGICIDES - (Abstract Only)
GRUNWALD, N.J., SERRANO, E., MONTES, G., OLAYA, G., FRY, W.E. SENSITIVITY AND RESISTANCE OF THE TOLUCA VALLEY POPULATION OF PHYTOPHTHORA INFESTANS TO FUNGICIDES. PHYTOPATHOLOGY. 91(6):S33. 2001.
INFECTIVITY AND FORMATION OF OOSPORES OF PHYTOPHTHORA INFESTANS IN THE TOLUCA VALLEY, MEXICO - (Abstract Only)
FERNANDEZ-PAVIA, S., GRUNWALD, N.J., FRY, W.E. INFECTIVITY AND FORMATION OF OOSPORES OF PHYTOPHTHORA INFESTANS IN THE TOLUCA VALLEY, MEXICO. PHYTOPATHOLOGY. 91(6):S28. 2001.