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Items: 22


Genome-based evolutionary history of Pseudomonas spp.

Hesse C, Schulz F, Bull CT, Shaffer BT, Yan Q, Shapiro N, Hassan KA, Varghese N, Elbourne LDH, Paulsen IT, Kyrpides N, Woyke T, Loper JE.

Environ Microbiol. 2018 Jun;20(6):2142-2159. doi: 10.1111/1462-2920.14130. Epub 2018 Jul 22.


Secondary Metabolism and Interspecific Competition Affect Accumulation of Spontaneous Mutants in the GacS-GacA Regulatory System in Pseudomonas protegens.

Yan Q, Lopes LD, Shaffer BT, Kidarsa TA, Vining O, Philmus B, Song C, Stockwell VO, Raaijmakers JM, McPhail KL, Andreote FD, Chang JH, Loper JE.

mBio. 2018 Jan 16;9(1). pii: e01845-17. doi: 10.1128/mBio.01845-17.


Characterization of Toxin Complex Gene Clusters and Insect Toxicity of Bacteria Representing Four Subgroups of Pseudomonas fluorescens.

Rangel LI, Henkels MD, Shaffer BT, Walker FL, Davis EW 2nd, Stockwell VO, Bruck D, Taylor BJ, Loper JE.

PLoS One. 2016 Aug 31;11(8):e0161120. doi: 10.1371/journal.pone.0161120. eCollection 2016.


An Interspecies Signaling System Mediated by Fusaric Acid Has Parallel Effects on Antifungal Metabolite Production by Pseudomonas protegens Strain Pf-5 and Antibiosis of Fusarium spp.

Quecine MC, Kidarsa TA, Goebel NC, Shaffer BT, Henkels MD, Zabriskie TM, Loper JE.

Appl Environ Microbiol. 2015 Dec 11;82(5):1372-1382. doi: 10.1128/AEM.02574-15.


Investigations into the Biosynthesis, Regulation, and Self-Resistance of Toxoflavin in Pseudomonas protegens Pf-5.

Philmus B, Shaffer BT, Kidarsa TA, Yan Q, Raaijmakers JM, Begley TP, Loper JE.

Chembiochem. 2015 Aug 17;16(12):1782-90. doi: 10.1002/cbic.201500247. Epub 2015 Jul 3.


Pseudomonas protegens Pf-5 causes discoloration and pitting of mushroom caps due to the production of antifungal metabolites.

Henkels MD, Kidarsa TA, Shaffer BT, Goebel NC, Burlinson P, Mavrodi DV, Bentley MA, Rangel LI, Davis EW 2nd, Thomashow LS, Zabriskie TM, Preston GM, Loper JE.

Mol Plant Microbe Interact. 2014 Jul;27(7):733-46. doi: 10.1094/MPMI-10-13-0311-R.


Outcomes of a head and neck cancer screening clinic.

Shuman AG, McKiernan JT, Thomas D, Patel P, Palmer FL, Shaffer BT, Shah JP, Patel SG, Boyle JO.

Oral Oncol. 2013 Dec;49(12):1136-40. doi: 10.1016/j.oraloncology.2013.09.007. Epub 2013 Sep 29.


pA506, a conjugative plasmid of the plant epiphyte Pseudomonas fluorescens A506.

Stockwell VO, Davis EW 2nd, Carey A, Shaffer BT, Mavrodi DV, Hassan KA, Hockett K, Thomashow LS, Paulsen IT, Loper JE.

Appl Environ Microbiol. 2013 Sep;79(17):5272-82. doi: 10.1128/AEM.01354-13. Epub 2013 Jun 28.


Genes expressed by the biological control bacterium Pseudomonas protegens Pf-5 on seed surfaces under the control of the global regulators GacA and RpoS.

Kidarsa TA, Shaffer BT, Goebel NC, Roberts DP, Buyer JS, Johnson A, Kobayashi DY, Zabriskie TM, Paulsen I, Loper JE.

Environ Microbiol. 2013 Mar;15(3):716-35. doi: 10.1111/1462-2920.12066. Epub 2013 Jan 8.


Comparative genomics of plant-associated Pseudomonas spp.: insights into diversity and inheritance of traits involved in multitrophic interactions.

Loper JE, Hassan KA, Mavrodi DV, Davis EW 2nd, Lim CK, Shaffer BT, Elbourne LD, Stockwell VO, Hartney SL, Breakwell K, Henkels MD, Tetu SG, Rangel LI, Kidarsa TA, Wilson NL, van de Mortel JE, Song C, Blumhagen R, Radune D, Hostetler JB, Brinkac LM, Durkin AS, Kluepfel DA, Wechter WP, Anderson AJ, Kim YC, Pierson LS 3rd, Pierson EA, Lindow SE, Kobayashi DY, Raaijmakers JM, Weller DM, Thomashow LS, Allen AE, Paulsen IT.

PLoS Genet. 2012 Jul;8(7):e1002784. doi: 10.1371/journal.pgen.1002784. Epub 2012 Jul 5.


Validation of a disease-specific quality-of-life instrument for acoustic neuroma: the Penn Acoustic Neuroma Quality-of-Life Scale.

Shaffer BT, Cohen MS, Bigelow DC, Ruckenstein MJ.

Laryngoscope. 2010 Aug;120(8):1646-54. doi: 10.1002/lary.20988.


Inactivation of the GacA response regulator in Pseudomonas fluorescens Pf-5 has far-reaching transcriptomic consequences.

Hassan KA, Johnson A, Shaffer BT, Ren Q, Kidarsa TA, Elbourne LD, Hartney S, Duboy R, Goebel NC, Zabriskie TM, Paulsen IT, Loper JE.

Environ Microbiol. 2010 Apr;12(4):899-915. doi: 10.1111/j.1462-2920.2009.02134.x. Epub 2010 Jan 18.


Role of rpfF in virulence and exoenzyme production of Xanthomonas axonopodis pv. glycines, the causal agent of bacterial pustule of soybean.

Thowthampitak J, Shaffer BT, Prathuangwong S, Loper JE.

Phytopathology. 2008 Dec;98(12):1252-60. doi: 10.1094/PHYTO-98-12-1252. Erratum in: Phytopathology. 2009 Jan;99(1):122.


Isolation and identification of rhizoxin analogs from Pseudomonas fluorescens Pf-5 by using a genomic mining strategy.

Loper JE, Henkels MD, Shaffer BT, Valeriote FA, Gross H.

Appl Environ Microbiol. 2008 May;74(10):3085-93. doi: 10.1128/AEM.02848-07. Epub 2008 Mar 14.


Temporal and Spatial Distribution of the nifH Gene of N(2) Fixing Bacteria in Forests and Clearcuts in Western Oregon.

Shaffer BT, Widmer F, Porteous LA, Seidler RJ.

Microb Ecol. 2000 Jan;39(1):12-21.


Analysis of nifH gene pool complexity in soil and litter at a Douglas fir forest site in the Oregon cascade mountain range.

Widmer F, Shaffer BT, Porteous LA, Seidler RJ.

Appl Environ Microbiol. 1999 Feb;65(2):374-80.


Survey of Culturable Airborne Bacteria at Four Diverse Locations in Oregon: Urban, Rural, Forest, and Coastal

Shaffer BT, Lighthart B.

Microb Ecol. 1997 Nov;34(3):167-77. No abstract available.


Protection of freeze-dried Escherichia coli by trehalose upon exposure to environmental conditions.

Israeli E, Shaffer BT, Lighthart B.

Cryobiology. 1993 Oct;30(5):519-23.


Survival differences among freeze-dried genetically engineered and wild-type bacteria.

Israeli E, Shaffer BT, Hoyt JA, Lighthart B, Ganio LM.

Appl Environ Microbiol. 1993 Feb;59(2):594-8.


Resuscitation effects of catalase on airborne bacteria.

Marthi B, Shaffer BT, Lighthart B, Ganio L.

Appl Environ Microbiol. 1991 Sep;57(9):2775-6.


Trajectory of aerosol droplets from a sprayed bacterial suspension.

Lighthart B, Shaffer BT, Marthi B, Ganio L.

Appl Environ Microbiol. 1991 Apr;57(4):1006-12.

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