Insights into the role of jasmonic acidmediated d

Authors: Christopher J Antico Chad Colon Taylor Banks Katrina M Ramonell

Publish Date: 2012/01/08

Volume: 7, Issue: 1, Pages: 48-56

PDF Link

Abstract

Jasmonic acid JA is a natural hormone regulator involved in development responses against wounding and pathogen attack Upon perception of pathogens JA is synthesized and mediates a signaling cascade initiating various defense responses Traditionally necrotrophic fungi have been shown to be the primary activators of JAdependent defenses through the JAreceptor COI1 Conversely plants infected with biotrophic fungi have classically been associated with suppressing JAmediated responses However recent evidence has shown that certain biotrophic fungal species also trigger activation of JAmediated responses and mutants deficient in JA signaling show an increase in susceptibility to certain biotrophic fungal pathogens These findings suggest a new role for JA in defense against fungal biotrophs This review will focus on recent research advancing our knowledge of JAdependant responses involved in defense against both biotrophic and necrotrophic fungi

Keywords: