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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Genetic Improvement for Fruits & Vegetables Laboratory » People & Locations » Christopher Clarke
Christopher Clarke
Research Plant Pathologist


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Diverse mobile genetic elements shaped the evolution of streptomyces virulence - (Peer Reviewed Journal)
Weisberg, A., Pearce, E., Kramer, C.G., Chang, J., Clarke, C.R. 2023. Diverse mobile genetic elements shaped the evolution of streptomyces virulence. Microbial Genomics. https://doi.org/10.1099/mgen.0.001127.
Mistranslation of the genetic code by a new family of bacterial transfer RNAs - (Peer Reviewed Journal)
Schuntermann, D., Fischer, J., Bile, J., Gaier, S., Shelley, B., Jahn, M., Hoffman, K., Westhof, E., Soll, D., Clarke, C.R., Vargas-Rodriguez, O. 2023. Mistranslation of the genetic code by a new family of bacterial transfer RNAs. Journal of Biological Chemistry. https://doi.org/10.1016/j.jbc.2023.104852.
Steroidal glycoalkaloids contribute to anthracnose resistance in solanum lycopersicum - (Peer Reviewed Journal)
Fabian, M.L., Zhang, C., Sun, J., Price, N.P., Chen, P., Clarke, C.R., Jones, R.W., Stommel, J.R. 2023. Steroidal glycoalkaloids contribute to anthracnose resistance in solanum lycopersicum. Journal of Experimental Botany. 74(12):3700-3713. https://doi.org/10.1093/jxb/erad108.
The phytotoxin Thaxtomin A is the primary virulence determinant for scab disease of beet, carrot, and radish caused by streptomyces scabiei - (Peer Reviewed Journal)
Clarke, C.R., Kramer, C.G., Kothka, R., Luthria, D.L. 2022. The phytotoxin Thaxtomin A is the primary virulence determinant for scab disease of beet, carrot, and radish caused by streptomyces scabiei. American Phytopathological Society. https://doi.org/10.1094/PHYTO-03-22-0072-R.
Genetic dissection of early blight resistance in tetraploid potato - (Peer Reviewed Journal)
Xue, W., Haynes, K.G., Clarke, C.R., Qu, X. 2022. Genetic dissection of early blight resistance in tetraploid potato. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2022.851538.
Description of Streptomyces griseiscabiei sp. nov. and reassignment of Streptomyces sp. strain NRRL B-16521 to Streptomyces acidiscabies - (Peer Reviewed Journal)
Nguyen, H., Mowery, J.D., Clarke, C.R. 2022. Description of Streptomyces griseiscabiei sp. nov. and reassignment of Streptomyces sp. strain NRRL B-16521 to Streptomyces acidiscabies. International Journal of Systematic and Evolutionary Microbiology. https://doi.org/10.1099/ijsem.0.005574.
Streptomyces caniscabiei sp. nov., which causes potato common scab and is distributed across the world - (Peer Reviewed Journal)
Nguyen, H., Weisberg, A., Chang, J., Clarke, C.R. 2022. Streptomyces caniscabiei sp. nov., which causes potato common scab and is distributed across the world. International Journal of Systematic and Evolutionary Microbiology. https://doi.org/10.1099/ijsem.0.005225.
Experimental evidence pointing to rain as a reservoir of tomato phyllosphere microbiota - (Peer Reviewed Journal)
Mechan-Llontop, M.E., Tian, L., Sharma, P., Heflin, L., Bernal-Galeano, V., Haak, D.C., Clarke, C.R., Vinatzer, B.A. 2021. Experimental evidence pointing to rain as a reservoir of tomato phyllosphere microbiota. Phytobiomes Journal. e-ISSN:2471-2906. https://doi.org/10.1094/PBIOMES-04-21-0025-R.
A novel species-level group of streptomyces exhibits variation in phytopathogenicity despite conservation of virulence loci - (Peer Reviewed Journal)
Weisberg, A., Kotha, R., Kramer, C., Chang, J., Luthria, D.L., Clarke, C.R. 2020. Whole-genome sequencing of five Streptomyces isolates identifies a new pathogenic species group that causes common scab disease of potato. Molecular Plant-Microbe Interactions. 34(1):39-48. https://doi.org/10.1094/MPMI-06-20-0164-R.
Multiple immunity-related genes control susceptibility of Arabidopsis thaliana to the parasitic weed Phelipanche aegyptiaca - (Peer Reviewed Journal)
Clarke, C.R., Park, S., Tuosto, R., Jia, X., Mcgough, A., Vanmullekom, J., Westwood, J.H. 2020. Multiple immunity-related genes control susceptibility of Arabidopsis thaliana to the parasitic weed Phelipanche aegyptiaca. PeerJ. https://doi.org/10.7717/peerj.9268.
Low-dose foliar treatments of the auxin analog 2,4-D reduce potato common scab and powdery scab for multiple potato cultivars and enhance root development - (Peer Reviewed Journal)
Clarke, C.R., Tegg, R.S., Thompson, H.K., Frederick, C., Haynes, K.G., Kramer, M.H., Wilson, C. 2020. Low-dose foliar treatments of the auxin analog 2,4-D reduce potato common scab and powdery scab for multiple potato cultivars and enhance root development. Crop Protection Journal. https://doi.org/10.1016/j.cropro.2020.105208.
Cultivar resistance to common scab disease of potato is dependent on the pathogen species - (Peer Reviewed Journal)
Clarke, C.R., Kramer, C., Kramer, M.H. 2019. Cultivar resistance to common scab disease of potato is dependent on the pathogen species. Phytopathology. https://doi.org/10.1094/PHYTO-09-18-0368-R.
Identification of differentially methylated sites with weak methylation effect - (Peer Reviewed Journal)
Tran, H., Zhu, H., Wu, X., Kim, G., Clarke, C.R., Larose, H., Haak, D.C., Askew, S., Barney, J.N., Westwood, J.H., Zhang, L. 2018. Identification of differentially methylated sites with weak methylation effect. Genes. 9:75-92.
A recombinant flagellin fragment, which includes the epitopes flg22 and flgII-28, provides a useful tool to study flagellin-triggered immunity Reprint Icon - (Peer Reviewed Journal)
Ciarroni, S., Clarke, C.R., Liu, H., Levi, N.E., Mazaglia, A., Balestra, G.M., Vinatzer, B.A. 2018. A recombinant flagellin fragment, which includes the epitopes flg22 and flgII-28, provides a useful tool to study flagellin-triggered immunity. Journal of General Plant Pathology. https://doi.org/10.1007/s10327-018-0779-2.
Herbicide injury induces dose-dependent DNA methylome alterations in Arabidopsis Reprint Icon - (Peer Reviewed Journal)
Kim, G., Clarke, C.R., Larose, H., Zhang, L., Haak, D.C., Askew, S., Barney, J., Westwood, J.H. 2017. Herbicide injury induces dose-dependent DNA methylome alterations in Arabidopsis. PeerJ. https://doi.org/10.7717/peerj.3560.