Hormone Crosstalk in Plant Disease and Defense: More Than Just JASMONATE-SALICYLATE Antagonism

Robert-Seilaniantz, A. and Grant, M. and Jones, J.D.G. (2011) Hormone Crosstalk in Plant Disease and Defense: More Than Just JASMONATE-SALICYLATE Antagonism. Annual Review of Phytopathology, 49. pp. 317-343.

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Abstract

Until recently, most studies on the role of hormones in plant-pathogen interactions focused on salicylic acid (SA), jasmonic acid ( JA), and ethylene (ET). It is nowclear that pathogen-induced modulation of signaling via other hormones contributes to virulence. A picture is emerging of complex crosstalk and induced hormonal changes thatmodulate disease and resistance, with outcomes dependent on pathogen lifestyles and the genetic constitution of the host. Recent progress has revealed intriguing similarities between hormone signaling mechanisms, with gene induction responses often achieved by derepression. Here, we report on recent advances, updating current knowledge on classical defense hormones SA, JA, and ET, and the roles of auxin, abscisic acid (ABA), cytokinins (CKs), and brassinosteroids in molding plant-pathogen interactions. We highlight an emerging theme that positive and negative regulators of these disparate hormone signaling pathways are crucial regulatory targets of hormonal crosstalk in disease and defense.

Item Type: Article
Uncontrolled Keywords: plant-pathogen, negative regulator, positive regulator
Author Affiliation: The Sainsbury Laboratory, Norwich Research Park, Colney, Norwich NR4 7UH, UK
Subjects: Plant Protection
Divisions: General
Depositing User: Mr Siva Shankar
Date Deposited: 14 Mar 2014 09:05
Last Modified: 14 Mar 2014 09:05
Official URL: http://dx.doi.org/10.1146/annurev-phyto-073009-114...
URI: http://eprints.icrisat.ac.in/id/eprint/12875

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