Research Topics
| Barbara N KunkelSummaryAffiliation: Washington University School of Medicine Country: USA Publications
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Detail Information
Publications
Cross talk between signaling pathways in pathogen defenseBarbara N Kunkel
Department of Biology, Washington University, Campus Box 1137, 1 Brookings Drive, St Louis, Missouri 63130, USA
Curr Opin Plant Biol 5:325-31. 2002..The SA and JA signaling pathways are mutually antagonistic. This regulatory cross talk may have evolved to allow plants to fine-tune the induction of their defenses in response to different plant pathogens...- Novel virulence gene of Pseudomonas syringae pv. tomato strain DC3000Karen Preiter
Department of Biology, Washington University, St Louis, MO 63130, USA
J Bacteriol 187:7805-14. 2005..thaliana. Given that tvrR mutant strains are not defective for type III secretion or COR production, tvrR appears to be a novel virulence factor required for a previously unexplored process that is necessary for pathogenesis... - The Pseudomonas syringae type III effector AvrRpt2 promotes virulence independently of RIN4, a predicted virulence target in Arabidopsis thalianaMelisa T S Lim
Department of Biology, Washington University, 1 Brookings Drive, St Louis, MO 63130, USA
Plant J 40:790-8. 2004..thaliana line lacking RIN4. Collectively, these results indicate that the virulence activity of AvrRpt2 in A. thaliana is likely to rely on the modification of host susceptibility factors other than, or in addition to, RIN4... - The Pseudomonas syringae avrRpt2 gene contributes to virulence on tomatoMelisa T S Lim
Department of Biology, Washington University, St Louis, MO 63130, USA
Mol Plant Microbe Interact 18:626-33. 2005..The enhanced virulence conferred by the expression of avrRpt2 in JL1065 was not associated with the suppression of several defense-related genes induced during the infection of tomato... - Mqo, a tricarboxylic acid cycle enzyme, is required for virulence of Pseudomonas syringae pv. tomato strain DC3000 on Arabidopsis thalianaEve M Mellgren
Washington University in Saint Louis, Department of Biology, 1 Brookings Dr, Campus Box 1137, St Louis, MO 63130, USA
J Bacteriol 191:3132-41. 2009..Thus, mqo may be required by DC3000 to meet nutritional requirements in the apoplast and may provide insight into the mechanisms underlying the important, but poorly understood process of adaptation to the host environment... - The Arabidopsis thaliana JASMONATE INSENSITIVE 1 gene is required for suppression of salicylic acid-dependent defenses during infection by Pseudomonas syringaeNeva Laurie-Berry
Department of Biology, Washington University, St Louis, MO 63130, USA
Mol Plant Microbe Interact 19:789-800. 2006..Thus, P. syringae pv. tomato DC3000 appears to utilize COR to manipulate JIN1-dependent jasmonate signaling both to suppress SA-mediated defenses and to promote symptom development... - Pseudomonas syringae type III effector AvrRpt2 alters Arabidopsis thaliana auxin physiologyZhongying Chen
Department of Biology, Washington University, St Louis, MO 63130, USA
Proc Natl Acad Sci U S A 104:20131-6. 2007..Thus, AvrRpt2 may be among the virulence factors of P. syringae that modulate host auxin physiology to promote disease... - Mutations in the Pseudomonas syringae avrRpt2 gene that dissociate its virulence and avirulence activities lead to decreased efficiency in AvrRpt2-induced disappearance of RIN4Melisa T S Lim
Department of Biology, Washington University in St. Louis, St. Louis, MO 63130, USA
Mol Plant Microbe Interact 17:313-21. 2004..This suggests that an alteration in kinetics of RIN4 disappearance triggered by the C-terminal deletion mutants may provide the mechanistic basis for the uncoupling of the avirulence and virulence activities of avrRpt2... - Identification and characterization of a well-defined series of coronatine biosynthetic mutants of Pseudomonas syringae pv. tomato DC3000David M Brooks
Department of Biology, Washington University, St Louis, MO 63130, USA
Mol Plant Microbe Interact 17:162-74. 2004..thaliana is caused by the absence of the intact COR toxin. This is the first study to use biochemically and genetically defined COR mutants to address the role of COR in pathogenesis... - Identification of Pseudomonas syringae pv. tomato genes induced during infection of Arabidopsis thalianaJens Boch
Department of Biology, Campus Box 1137, Washington University, 1 Brookings Drive, St Louis, MO 63130, USA
Mol Microbiol 44:73-88. 2002..syringae. Our results demonstrate that this screen can be used successfully to isolate genes that are induced in planta, including many novel genes potentially involved in pathogenesis... - The Pseudomonas syringae type III effector AvrRpt2 functions downstream or independently of SA to promote virulence on Arabidopsis thalianaZhongying Chen
Department of Biology, Washington University in St Louis, St Louis, MO 63130, USA
Plant J 37:494-504. 2004..Additionally, avrRpt2 transgenic plants did not exhibit increased susceptibility to Peronospora parasitica and Erysiphe cichoracearum, suggesting that AvrRpt2 virulence activity is specific to P. syringae... - Epigenetic variation in Arabidopsis disease resistanceTrevor L Stokes
Department of Biology, Washington University, St. Louis, Missouri 63130, USA
Genes Dev 16:171-82. 2002..Overexpression of a related R-like gene also occurs in the ssi1 (suppressor of SA insensitivity 1) background, suggesting that ssi1 is mechanistically related to bal... - Activation of a COI1-dependent pathway in Arabidopsis by Pseudomonas syringae type III effectors and coronatinePing He
Department of Plant Pathology, Kansas State University, Manhattan, KS 66506, USA
Plant J 37:589-602. 2004..These results suggest that P. syringae type III effectors and coronatine act by augmenting a COI1-dependent pathway to promote parasitism... - The phytotoxin coronatine contributes to pathogen fitness and is required for suppression of salicylic acid accumulation in tomato inoculated with Pseudomonas syringae pv. tomato DC3000Srinivasa Rao Uppalapati
Department of Entomology and Plant Pathology, Oklahoma State University, Stillwater 74078, USA
Mol Plant Microbe Interact 20:955-65. 2007.... - Identification of novel hrp-regulated genes through functional genomic analysis of the Pseudomonas syringae pv. tomato DC3000 genomeJulie Zwiesler-Vollick
Department of Energy Plant Research Laboratory, 206 Plant Biology Building, Michigan State University, East Lansing, MI 48824, USA
Mol Microbiol 45:1207-18. 2002..An AvrRpt2-based type III translocation assay provides evidence that some of the hrpS-regulated novel genes encode putative effector proteins...