G蛋白在光调控气孔运动中的作用  

Role of G Protein in Light-regulated Stomatal Movement

作　　者：张媛华[1] 

机构地区：[1]渭南师范学院化学与生命科学学院,陕西渭南714000

出　　处：《安徽农业科学》2012年第15期8404-8405,共2页Journal of Anhui Agricultural Sciences

基　　金：陕西省自然科学基础研究计划项目(2011JQ4014)

摘　　要：[目的]探究G蛋白在光调控的气孔运动中的作用。[方法]通过药理学试验和气孔分析,证明G蛋白参与光诱导的气孔运动。[结果]CTX诱导光下气孔关闭,同时该效应可被H2O2清除剂Vc、CAT所逆转。[结论]光下G蛋白被钝化。G蛋白可能是H2O2的上游信号分子。[ Objective ] To study the role of G protein in light-regulated stomatal movement in Vicia faba L.. [ Method ] The means of pharma- cological approach and stomatal analysis were adopted to study the role of G protein in light-regulated stomatal movement. [ Result] CTX in- duced stomatal closure under light, and it can be reversed by ascorbic acid and eatalase. [ Conclusion] C protein was blunted by light, and H2O2 may be the downsteam signal in G protein participated signal pathway.

关 键 词：G蛋白 H2O2 信号转导 

分 类 号：S188[农业科学—农业基础科学] Q945.6[生物学—植物学]