Salt tolerance in rice:Physiological responses and molecular mechanisms  

作　　者：Citao Liu Bigang Mao Dingyang Yuan Chengcai Chu Meijuan Duan 

机构地区：[1]College of Agriculture,Hunan Agricultural University,Changsha 410128,Hunan,China [2]State Key Laboratory of Hybrid Rice,Hunan Hybrid Rice Research Center,Changsha 410125,Hunan,China [3]State Key Laboratory of Plant Genomics,Institute of Genetics and Developmental Biology,The Innovative Academy for Seed Design,Chinese Academy of Sciences,Beijing 100101,China

出　　处：《The Crop Journal》2022年第1期13-25,共13页作物学报（英文版）

基　　金：supported by the Research Initiation Fund of Hunan Agricultural University(20154/5407419002);the Open Research Fund of the State Key Laboratory of Hybrid Rice,Hunan Hybrid Rice Research Center(2020KF05);the Hunan Science and Technology Major Project(2018NK1010);the Hunan Science and Technology Talents Support Project(2019TJ-Q08)。

摘　　要：Crop yield loss due to soil salinization is an increasing threat to agriculture worldwide.Salt stress drastically affects the growth,development,and grain productivity of rice(Oryza sativa L.),and the improvement of rice tolerance to salt stress is a desirable approach for meeting increasing food demand.The main contributors to salt toxicity at a global scale are Na^(+)and Cl^(-)ions,which affect up to 50%of irrigated soils.Plant responses to salt stress occur at the organismic,cellular,and molecular levels and are pleiotropic,involving(1)maintenance of ionic homeostasis,(2)osmotic adjustment,(3)ROS scavenging,and(4)nutritional balance.In this review,we discuss recent research progress on these four aspects of plant physiological response,with particular attention to hormonal and gene expression regulation and salt tolerance signaling pathways in rice.The information summarized here will be useful for accelerating the breeding of salt-tolerant rice.

关 键 词：Salt stress Rice(Oryza sativa L.) Salt tolerance genes Physiological response Salt signal transduction 

分 类 号：S511[农业科学—作物学]