Ve1-mediated resistance against Verticillium does not involve a hypersensitive response in Arabidopsis

Z. Zhang, H.P. van Esse, M. van Damme, E.F. Fradin, Chun-Ming Liu, B.P.H.J. Thomma

Research output: Contribution to journalArticleAcademicpeer-review

22 Citations (Scopus)

Abstract

The recognition of pathogen effectors by plant immune receptors leads to the activation of immune responses that often include a hypersensitive response (HR): rapid and localized host cell death surrounding the site of attempted pathogen ingress. We have demonstrated previously that the recognition of the Verticillium dahliae effector protein Ave1 by the tomato immune receptor Ve1 triggers an HR in tomato and tobacco. Furthermore, we have demonstrated that tomato Ve1 provides Verticillium resistance in Arabidopsis upon Ave1 recognition. In this study, we investigated whether the co-expression of Ve1 and Ave1 in Arabidopsis results in an HR, which could facilitate a forward genetics screen. Surprisingly, we found that the co-expression of Ve1 and Ave1 does not induce an HR in Arabidopsis. These results suggest that an HR may occur as a consequence of Ve1/Ave1-induced immune signalling in tomato and tobacco, but is not absolutely required for Verticillium resistance.
Original languageEnglish
Pages (from-to)719-727
JournalMolecular Plant Pathology
Volume14
Issue number7
DOIs
Publication statusPublished - 2013

Keywords

  • ethylene-inducing xylanase
  • receptor-like proteins
  • gated ion-channel
  • disease resistance
  • rhynchosporium-secalis
  • functional-analysis
  • defense responses
  • gene family
  • tomato ve1
  • cell-death

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