Lipid signalling events in plant–pathogen interactions. PIP2 phosphatidylinositol 4,5-bisphosphate, PLA phospholipase A, PI-PLC phosphatidylinositol specific phospholipase C, DAG diacylglycerol, DGK diacylglycerol kinase, PA phosphatidic acid, PLD phospholipase D, PC phosphatidylcholine, PE phosphatidylethanolamine, PI phosphatidylinositol, IP3 inositol-3-phosphate, lyso-PL lysophospholipid, FFA free fatty acid, ROS reactive oxygen species, MGDG monogalactosyldiacylglycerol, DGDG digalactosyldiacylglycerol, FAD fatty acid desaturase, PG phosphatidylglycerol, 12-OPDA 12-oxo-phytodienoic acid, AOC allene oxide cyclase, AOS allene oxide synthase, LOX lipoxygenase, ONA 9-oxononanoic acid, AzA azelaic acid, JA jasmonic acid, JA-Ile jasmonic acid conjugated with isoleucine, JAR1 jasmonates-amide synthetase, NO nitric oxide, SA salicylic acid, SAR systemic acquired resistance, SSI2 SA-inducible 2, C16:0 palmitic acid, C16:1t trans-hexadecanoic acid, C18:0 stearic acid, C18:1 oleic acid, C18:2 linoleic acid, C18:3 α-linolenic acid. The blue arrows indicate induction