title: Chemical inducers of systemic immunity in plants.
abstract: Systemic acquired resistance (SAR) is a highly desirable form of resistance that protects against a broad-spectrum of related or unrelated pathogens. SAR involves the generation of multiple signals at the site of primary infection, which arms distal portions against subsequent secondary infections. The last decade has witnessed considerable progress, and a number of chemical signals contributing to SAR have been isolated and characterized. The diverse chemical nature of these chemicals had led to the growing belief that SAR might involve interplay of multiple diverse and independent signals. However, recent results suggest that coordinated signalling from diverse signalling components facilitates SAR in plants. This review mainly discusses organized signalling by two such chemicals, glycerol-3-phoshphate and azelaic acid, and the role of basal salicylic acid levels in G3P-conferred SAR.
authors.affiliation: Department of Plant Pathology, University of Kentucky, Lexington, KY 40546, USA.
authors.forename: Qing-Ming
authors.initials: QM
authors.lastname: Gao
authors.forename: Aardra
authors.initials: A
authors.lastname: Kachroo
authors.forename: Pradeep
authors.initials: P
authors.lastname: Kachroo
mesh_terms: D056704:Adaptive Immunity; D001692:Biological Transport; D003998:Dicarboxylic Acids / Q000378:metabolism*; D005994:Glycerophosphates / Q000378:metabolism*; D057865:Plant Immunity; D010944:Plants / Q000276:immunology*; D020156:Salicylic Acid / Q000378:metabolism*
chemical_list: D003998:Dicarboxylic Acids; D005994:Glycerophosphates; C029620:alpha-glycerophosphoric acid; C010038:azelaic acid; D020156:Salicylic Acid
keywords: Chemical signals; defence; plant metabolites; signalling; systemic.