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United States Department of Agriculture

Agricultural Research Service

Brenda Shaffer
Horticultural Crops Research
Biological Science Technician (Microbiology)

Phone: (541) 738-4055
Fax: (541) 738-4025
3420 NW ORCHARD AV
CORVALLIS, OR, 97330-5014


Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Genes expressed by the biological control bacterium Pseudomonas protegens Pf-5 on seed surfaces under the control of the global regulators GacA and RpoS - (Peer Reviewed Journal)
Kidarsa, T.A., Shaffer, B.T., Goebel, N.C., Roberts, D.P., Buyer, J.S., Johnson, A., Kobayashi, D.Y., Paulsen, I., Loper, J.E. 2013. Genes expressed by the biological control bacterium Pseudomonas protegens Pf-5 on seed surfaces under the control of the global regulators GacA and RpoS. Environmental Microbiology. 15:716-735.
Comparative genomics of plant-associated Pseudomonas spp.: Insights into diversity and inheritance of traits involved in multitrophic interactions - (Peer Reviewed Journal)
Loper, J.E., Hassan, K.A., Mavrodi, D., Davis, E.W., Lim, C., Shaffer, B.T., Elbourne, L.H., Stockwell, V.O., Hartney, S.L., Breakwell, K., Henkels, M.D., Tetu, S.G., Rangel, L.I., Kidarsa, T.A., Wilson, N.L., Van Mortel, J., Song, C., Blumhagen, R., Radune, D., Hostetler, J.B., Brinkac, L.M., Durkin, A., Kluepfel, D.A., Wechter, W.P., Anderson, A.J., Kim, Y., Pierson Iii, L.S., Pierson, E.A., Lindow, S.E., Raaijmakers, J.M., Weller, D.M., Thomashow, L.S., Allen, A.E., Paulsen, I.I. 2012. Comparative genomics of plant-associated Pseudomonas spp.: Insights into diversity and inheritance of traits involved in multitrophic interactions. PLoS Genetics. 8(7):e1002784.
Factors influencing efficacy of plastic shelters for control of bacterial blight of lilac - (Abstract Only)
Stockwell, V., Shaffer, B.T., Henkels, M.D., Pscheidt, J.W., Loper, J.E. 2011. Factors influencing efficacy of plastic shelters for control of bacterial blight of lilac. Phytopathology. 101(6S):172.
Genomic Diversity of Biocontrol Strains of Pseudomonas spp. Isolated from Aerial or Root Surfaces of Plants - (Abstract Only)
Loper, J.E., Davis, E.W., Lim, K., Hassan, K., Wilson, N., Hartney, S., Shaffer, B.T., Stockwell, V., Henkels, M.D., Shen, K., Blumhagen, R.Z., Mavrodi, D., Van Mortel, J., Song, C., Radune, D., Hostetler, J., Kluepfel, D.A., Wechter, W.P., Anderson, A., Young, C., Pierson, L., Pierson, E., Lindow, S., Raaijmakers, J., Weller, D.M., Thomashow, L.S., Allen, A., Paulsen, I. 2010. Genomic diversity of biocontrol strains of Pseudomonas spp. isolated from aerial or root surfaces of plants. International Symposium on Microbiology of Aerial Plant Surfaces Program Book. p.43.
Management of Bacterial Blight of Lilac Caused by Pseudomonas syringae by Growing Plants under Plastic Shelters - (Abstract Only)
Stockwell, V., Shaffer, B.T., Henkels, M.D., Pscheidt, J.W., Loper, J.E. 2010. Management of bacterial blight of lilac caused by Pseudomonas syringae by growing plants under plastic shelters. International Symposium on Microbiology of Aerial Plant Surfaces Program Book.p.80.
Mining Genomes of Biological Control Strains of Pseudomonas spp.: Unexpected Gems and Tailings - (Abstract Only)
Kidarsa, T.A., Hassan, K., Henkels, M.D., Shaffer, B.T., Gross, H., Allen, A., Paulsen, I.T., Loper, J.E. 2010. Mining Genomes of Biological Control Strains of Pseudomonas spp.: Unexpected Gems and Tailings. 12th International Conference on Plant-Pathogenic Bacteria Program Book. p.106.
Inactivation of the GacA Response Regulator in Pseudomonas fluorescens Pf-5 Has Far-Reaching Transcriptomic Consequences - (Peer Reviewed Journal)
Hassan, K., Johnson, A., Shaffer, B.T., Ren, Q., Kidarsa, T.A., Elbourne, L.H., Hartney, S., Duboy, R., Goebel, N., Zabriskie, M.T., Paulsen, I.T., Loper, J.E. 2010. Inactivation of the GacA response regulator in Pseudomonas fluorescens Pf-5 has far-reaching transcriptomic consequences. Environmental Microbiology. 12(4):899-915.
The Transcriptomic Fingerprint of the Pseudomonas fluorescens Pf-5 GacS/GacA Signal Transduction System - (Abstract Only)
Hassan, K., Paulsen, I., Johnson, A., Ren, Q., Shaffer, B.T., Loper, J.E. 2009. The transcriptomic fingerprint of the Pseudomonas fluorescens Pf-5 GacS/GacA signal transduction system. International Plant Growth Promoting Rhizobacteria Workshop. p. 84.
Role of rpfF in Virulence and Exoenzyme Production of Xanthomonas axonopodis pathovar glycines, the Causal Agent of Bacterial Pustule of Soybean - (Peer Reviewed Journal)
Thowthampitak, J., Shaffer, B.T., Prathuangwong, S., Loper, J.E. 2008. Role of rpfF in virulence and exoenzyme production of Xanthomonas axonopodis pathovar glycines, the causal agent of bacterial pustule of soybean. Phytopathology. 98(12):1252-1260.
Isolation and Identification of Rhizoxin Derivatives from Pseudomonas fluorescens Pf-5 using a Genomic Mining Strategy - (Peer Reviewed Journal)
Loper, J.E., Henkels, M.D., Shaffer, B.T., Valeriote, F.A., Gross, H. 2008. Isolation and identification of rhizoxin derivatives from Pseudomonas fluorescens Pf-5 using a genomic mining strategy. Applied and Environmental Microbiology. 74(10):3085-3093.
Last Modified: 4/20/2014
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