Title: THE COMPLEXITY OF PATHOGEN DEFENSE IN PLANTS
Abstract:Summary. Plants defend themselves against pathogen attack by activating a multicomponent defense response. In host defense, pathogen invasion is recognized by proteins encoded by plant disease resista...Summary. Plants defend themselves against pathogen attack by activating a multicomponent defense response. In host defense, pathogen invasion is recognized by proteins encoded by plant disease resistance (R) genes that bind specific pathogen-derived avirulence (Avr) proteins. In nonhost resistance, specific pathogen or plant cell wall derived exogenous or endogenous elicitors are recognized. A complex signalling network, involving cytosolic Ca 2+ and H + ions, reactive oxygen intermediates, jasmonate, salicylic acid, ethylene, triggers the induction of the defense mechanisms. Defense genes encode pathogenesis-related proteins, such as glucanases, chitinases; enzymes involved in the biosynthesis of phytoalexins; the enzymes of oxidative stress protection, tissue repair, lignification, and others.Read More
Publication Year: 2001
Publication Date: 2001-01-01
Language: en
Type: article
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Cited By Count: 63
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