Emerging insights into heterotrimeric G protein signaling in plants

查看全文 作　　者：Quan [1]Xu;Mingzhu [1]Zhao;Kun [2]Wu;Xiangdong [2]Fu;Qian [2]Liu

机构地区：[1]Rice Research Institute of Shenyang Agricultural University,Key Laboratory of Northern Japonica Rice Genetics and Breeding,Ministry of Education and Liaoning Province,Key Laboratory of Northeast Rice Biology and Genetics and Breeding,Ministry of Agriculture;[2]The State Key Laboratory of Plant Cell and Chromosome Engineering,Institute of Genetics and Developmental Biology,Chinese Academy of Sciences

出　　处：《Journal of Genetics and Genomics》索引2016年第43卷第8期,共8页

基　　金：supported by grants from the National Natural Science Foundation of China(Nos.31401353,31301286,31430062 and 31371587) 摘　　要：Heterotrimeric guanine nucleotide-binding protein(G protein) signaling is an evolutionary conserved mechanism in diverse eukaryotic organisms.In plants,the repertoire of the heterotrimeric G protein complex,which is composed of the Gα,Gβ,and Gγ subunits,is much simpler than that in metazoans,and the identity of typical G protein-coupled receptors(GPCRs) together with their ligands still remains unclear.Comparative phenotypic analysis in Arabidopsis and rice plants using gain- and loss-of-function mutants of G protein components revealed that heterotrimeric G protein signaling plays important roles in a wide variety of plant growth and developmental processes.Grain yield is a complex trait determined by quantitative trait loci(QTL) and is influenced by soil nitrogen availability and environmental changes.Recent studies have shown that the manipulation of two non-canonical Gy subunits,GS3(GRAIN SIZE 3)and DEP1(DENSE AND ERECT PANICLE 1),represents new strategies to simultaneously increase grain yield and nitrogen use efficiency in rice.This review discusses the latest advances in our understanding of the heterotrimeric G protein signal transduction pathway and its application in improving yield and stress tolerance in crops. 关键词：异三聚体G蛋白植物体内信号通路数量性状位点 G蛋白偶联受体鸟嘌呤核苷酸氮肥利用效率信号转导途径

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Emerging insights into heterotrimeric G protein signaling in plants

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