Skip Navigation



JXB Advance Access published online on December 12, 2003
Journal of Experimental Botany, doi:10.1093/jxb/erh025
© 2003 by Oxford University Press
This Article
Right arrow FREE Full Text (PDF) Freely available
Right arrow All Versions of this Article:
55/395/169    most recent
erh025v1
Right arrow E-letters: Submit a response
Right arrow Alert me when this article is cited
Right arrow Alert me when E-letters are posted
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Disclaimer
Google Scholar
Right arrow Articles by Suzuki, H.
Right arrow Articles by Dixon, R. A.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Suzuki, H.
Right arrow Articles by Dixon, R. A.
Agricola
Right arrow Articles by Suzuki, H.
Right arrow Articles by Dixon, R. A.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

Received June 6, 2003; accepted October 8, 2003
© 2003 Society for Experimental Biology

CROSS-TALK IN PLANT SIGNAL TRANSDUCTION SPECIAL ISSUE ARTICLE

Signals for local and systemic responses of plants to pathogen attack

Hideyuki Suzuki 1, Yiji Xia 2, Robin Cameron 3, Gail Shadle 1, Jack Blount 1, Chris Lamb 4, and Richard A. Dixon 1*

1 Plant Biology Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, OK 73401, USA
2 Plant Biology Division, Samuel Roberts Noble Foundation, 2510 Sam Noble Parkway, Ardmore, OK 73401, USA; Salk Institute for Biological Studies, La Jolla, CA 92037, USA
3 Department of Botany, University of Toronto, Toronto, Ontario M5S 3B2, Canada
4 John Innes Centre, Norwich NR4 7UH, UK

* To whom correspondence should be addressed. E-mail: radixon{at}noble.org.


  Abstract

Activation of plant defences following recognition of pathogen attack involves complex reiterative signal networks with extensive signal amplification and cross-talk. The results of two approaches that have been taken to analyse signalling in plant-microbe interactions are discussed here. Activation tagging with T-DNA harbouring multiple 35S enhancer elements was employed as a gain-of-function approach to dissect signalling related to bacterial pathogen resistance in Arabidopsis thaliana. From a screen of ~5000 activation tagged lines, one line was identified as harbouring a T-DNA leading to over-expression of an apoplastic aspartic protease (CDR-1), that resulted in resistance to normally virulent Pseudomonas syringae. The second approach was to screen for loss-of-function mutants in T-DNA tagged populations. From a screen of 11 000 lines, one line, defective in induced resistance-1 (dir-1) lost resistance to normally avirulent P. syringae. Models for action of the products of the CDR-1 and DIR-1 genes suggest involvement of peptide and lipid signals in systemic disease resistance responses in A. thaliana.

Key words: Aspartic protease, bacterial resistance, lipid transfer protein, salicylic acid, signal transduction.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?


This article has been cited by other articles:


Home page
 J Exp BotHome page
European Plant Science Organization (EPSO)
European plant science: a field of opportunities
J. Exp. Bot., July 1, 2005; 56(417): 1699 - 1709.
[Abstract] [Full Text] [PDF]


Disclaimer: Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.