ID | 34244 |
FullText URL | |
Author |
Higashi, Kuniaki
Ishiga, Yasuhiro
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Abstract | Flagellin, a component of the flagellar filament of Pseudomonas syringae pv. tabaci 6605 (Pta), induces hypersensitive reaction in its non-host Arabidopsis thaliana. We identified the WRKY41 gene, which belongs to a multigene family encoding WRKY plant-specific transcription factors, as one of the flagellin-inducible genes in A. thaliana. Expression of WRKY41 is induced by inoculation with the incompatible pathogen P. syringae pv. tomato DC3000 (Pto) possessing AvrRpt2 and the non-host pathogens Pta within 6-h after inoculation, but not by inoculation with the compatible Pto. Expression of WRKY41 was also induced by inoculation of A. thaliana with an hrp-type three secretion system (T3SS)-defective mutant of Pto, indicating that effectors produced by T3SS in the Pto wild-type suppress the activation of WRKY41. Arabidopsis overexpressing WRKY41 showed enhanced resistance to the Pto wild-type but increased susceptibility to Erwinia carotovora EC1. WRKY41-overexpressing Arabidopsis constitutively expresses the PR5 gene, but suppresses the methyl jasmonate-induced PDF1.2 gene expression. These results demonstrate that WRKY41 may be a key regulator in the cross talk of salicylic acid and jasmonic acid pathways. |
Keywords | flagellin
flg22
FLS2
MAMP signaling pathway
WRKY41
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Note | Published with permission from the copyright holder.
This is published in Molecular Genetics and Genomics, 2008 Vol.279 Issue.3 pp.303-312 Publisher URL: http://dx.doi.org/10.1007/s00438-007-0315-0 Direct access to Thomson Web of Science record (C)2007 by Springer. |
Published Date | 2008-03-01
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Publication Title |
Molecular Genetics and Genomics
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Volume | volume279
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Issue | issue3
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Start Page | 303
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End Page | 312
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Content Type |
Journal Article
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language |
English
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Refereed |
True
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DOI | |
Web of Science KeyUT | |
Submission Path | biochemistry/16
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