Contrasting Mechanisms of Defense Against Biotrophic and Necrotrophic Pathogens

Contrasting Mechanisms of Defense Against Biotrophic and Necrotrophic Pathogens It has been suggested that effective defense against biotrophic pathogens is largely due to programmed cell death in the host, and to associated activation of defense responses regulated by the salicylic acid–dependent pathway. In contrast, necrotrophic pathogens benefit from host cell death, so they are not limited by cell death and salicylic acid–dependent defenses, but rather by a different set of defense responses activated by jasmonic acid and ethylene signaling. This review summarizes results from Arabidopsis -pathogen systems regarding the contributions of various defense responses to resistance to several biotrophic and necrotrophic pathogens. While the model above seems generally correct, there are exceptions and additional complexities. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Phytopathology Annual Reviews

Contrasting Mechanisms of Defense Against Biotrophic and Necrotrophic Pathogens

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Publisher
Annual Reviews
Copyright
Copyright © 2005 by Annual Reviews. All rights reserved
ISSN
0066-4286
eISSN
1545-2107
D.O.I.
10.1146/annurev.phyto.43.040204.135923
Publisher site
See Article on Publisher Site

Abstract

It has been suggested that effective defense against biotrophic pathogens is largely due to programmed cell death in the host, and to associated activation of defense responses regulated by the salicylic acid–dependent pathway. In contrast, necrotrophic pathogens benefit from host cell death, so they are not limited by cell death and salicylic acid–dependent defenses, but rather by a different set of defense responses activated by jasmonic acid and ethylene signaling. This review summarizes results from Arabidopsis -pathogen systems regarding the contributions of various defense responses to resistance to several biotrophic and necrotrophic pathogens. While the model above seems generally correct, there are exceptions and additional complexities.

Journal

Annual Review of PhytopathologyAnnual Reviews

Published: Jul 28, 2005

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