植物磷脂酸的特性及其在ABA诱导气孔运动中的作用  

Characteristics of Phosphatidic Acid and the Underlying Mechanisms of ABA-induced Stomatal Movement in Plants

作　　者：王雅静[1] 张欣莹[1] 黄桂荣[1] 刘晓英[1] 郭瑞[1] 顾峰雪[1] 钟秀丽[1] 梅旭荣[1] Yajing Wang;Xinying Zhang;Guirong Huang;Xiaoying Liu;Rui Guo;Fengxue Gu;Xiuli Zhong;Xurong Mei(Key Laboratory of Dryland Farming and Water-saving Agriculture,Ministry of Agriculture,State Engineering Laboratory of Efficient Water Use and Disaster Mitigation for Crops,Institute of Environment and Sustainable Development in Agriculture,Chinese Academy of Agricultural Sciences,Beijing 100081,China)

机构地区：[1]中国农业科学院农业环境与可持续发展研究所国家作物高效用水与抗灾减损工程实验室,农业部旱作节水农业重点开放实验室,北京100081

出　　处：《植物学报》2019年第2期245-254,共10页Chinese Bulletin of Botany

基　　金：国家重点研发计划(No.2017YFD0201702)

摘　　要：磷脂酸(PA)是应答多种生理过程的第二信使,其作为一个脂质信号快速积累从而响应多种环境。PA主要通过磷脂酶D (PLD)和磷脂酶C/甘油二酯激酶(PLC/DGK)途径产生。基于PLDs的生化特性、激活机制以及在不同类型胁迫下被激活的特定同种型的差异,不同类型胁迫下会产生特定分子种组成的PA。PA在多种环境下起信号转导作用,在调节气孔运动中,PA的作用模式主要是通过与多种蛋白结合,激活或抑制这些蛋白的活性,进而执行其信使功能。该文主要综述PA的生化特性以及信号途径中PA互作蛋白的研究进展,并提出PA研究中亟待解决的问题及今后的重点研究方向。Phosphatidic acid(PA), a second messenger, is considered to be a lipid signal whose level increases transiently in response to various challenges. The main production of PA derives from phospholipase D(PLD) and phospholipase C/diacylglycerol kinase(PLC/DGK) pathways. On the basis of differences in biochemical properties, catalytic mechanisms, and heterogeneities of PLDs, which are activated under specific stress, diverse PA molecular species composition would be formed response to various stresses conditions. PA is involved in various physiological processes. It acts as messenger by binding target proteins and regulating proteins positively and negatively in stomatal closure pathways. In this review, we first summarize biochemical properties of PA and the effects of PA on protein interaction and then provide insights into some crucial and urgent issues as well as directions for future research.

关 键 词：细胞骨架 机制 磷脂酸 信号转导 气孔运动 

分 类 号：Q945[生物学—植物学]