Jasmonates and related oxylipins in plant responses to pathogenesis and herbivory.
The vigorous production of oxygenated fatty acids (oxylipins) is a characteristic response to pathogenesis and herbivory, and is often accompanied by the substantial release of small and reactive lipid-fragmentation products. Some oxylipins, most notably those of the jasmonate family, have key roles as potent regulators. Recent advances have been made in understanding oxylipin-regulated signal transduction in response to attack. Much jasmonate signaling takes place via a genetically defined signal network that is linked to the ethylene, auxin, and salicylic acid signal pathways, but a second aspect of jasmonate signaling is emerging. Some jasmonates and several newly discovered cyclopentenone lipids can activate or repress gene expression through the activities of a conserved electrophilic atom group.
Farmer
Edward E
EE
Gene Expression Laboratory, Plant Molecular Biology, 1015 Lausanne, Switzerland. edwardelliston.farmer@ie-bpv.unil.ch
Alméras
Emmanuelle
E
Krishnamurthy
Venkatesh
V
D003517:Cyclopentanes / Q000737:chemistry / Q000378:metabolism*; D054883:Oxylipins; D018521:Plant Physiological Phenomena; D015398:Signal Transduction
D003517:Cyclopentanes; D054883:Oxylipins; C011006:jasmonic acid