Jasmonates in Plant Growth and Stress Responses

摘要: Jasmonates are lipid-derived compounds which signals in plant stress responses and development. They synthesized chloroplasts peroxisomes. An endogenous rise occurs upon environmental stimuli or distinct stages of development such as that anthers trichomes root growth. Hydroxylation, carboxylation, glucosylation, sulfation, methylation, conjugation jasmonic acid (JA) leads to numerous metabolites. Many them at least partially biologically inactive. The most bioactive JA is the (+)-7-iso-JA–isoleucine conjugate. Its perception takes place by SCFCOI1-JAZ-co-receptor complex. At elevated levels JAs, negative regulators JAZ, JAV subjected proteasomal degradation, thereby allowing positively acting transcription factors MYC MYB family switch on JA-induced gene expression. In case JAM regulation anatagonism MYC2. COI1 dominant expression after wounding response necrotrophic pathogens. Cross-talk salicylic acid, ethylene, auxin, other hormones occurs. Growth inhibited JA, counteracting growth stimulation gibberellic acid. Senescence, trichome formation, arbuscular mycorrhiza, formation many secondary metabolites induced jasmonates. Effects cold acclimation; intercropping; during herbivores, nematodes, pathogens; pre- post-harvest; crop quality control; biosynthesis led biotechnological agricultural applications.