植物脂肪酸及其衍生物防御信号研究进展

植物由于不能移动而发展了复杂而精密的抗病系统.近年来,人们发现作为细胞膜组分的脂肪酸在植物的各种抗病机制中发挥着举足轻重的作用.脂肪酸及其衍生物不仅参与植物基础免疫和系统免疫,还参与经典抗病基因(R基因)介导的抗病过程.目前,已发现许多与脂肪酸(尤其是16碳和18碳脂肪酸及其衍生物)代谢相关的突变体,对这些突变体抗病性改变的分子机制研究成为植物抗病领域研究热点之一.本文综述了脂肪酸及其衍生物在植物防御信号转导中的最新研究进展,旨在为植物抗病遗传育种研究提供新的参考.

Progress on Fatty Acids and Their Derivatives-mediated Signaling Pathways in Plant Disease Resistance

The sessile plants have developed complicated but sophisticated disease resistance systems.In recent years,fatty acids(FAs),the common cell membrane components,have been found to play important signaling roles in various disease resistance mechanisms.Fatty acids,especially 16-and 18-carbon derivatives,not only participate in both plant basal and systemic immunity,but also are required for the classical R gene mediated resistance mechanism.To date,many mutants have been found to be involved in the metabolism of fatty acid(especially the fatty acids having 16 or 18 carbons,or their derivatives).And the mechanisms about how these mutants changing their resistance to diseases have become a hotspot in the field of plant pathogen defense.This article has reviewed the recent progresses on how the fatty acid and its derivatives acting in the signaling pathways of plant defense,and aimed to contribute to the breeding of disease-resistant plants.