Proteome-wide identification of S-sulfenylated cysteines response to salt stress in Brassica napus root  

作　　者：Qian Qu Xiaowei Wu Qing Zhou Shaoping Lu Xuan Yao Liang Guo Liangqian Yu 

机构地区：[1]National Key Laboratory of Crop Genetic Improvement,Huazhong Agricultural University,Wuhan,430070,China [2]Yazhouwan National Laboratory,Sanya,572025,China

出　　处：《Oil Crop Science》2023年第4期243-251,共9页中国油料作物学报(英文版）

基　　金：funded by the Major Scientific and Technological Projects of Xinjiang Production and Construction Corps of China[2018AA005]and the 111 Project[B20051];supported by the PTM Biolabs lnc.[Hangzhou,China]for technical assistance.

摘　　要：Reactive oxygen species(ROS)play a key role in a variety of biological processes,such as the perception of abiotic stress,the integration of different environmental signals,and the activation of stress response networks.Salt stress could induce an increased ROS accumulation in plants,disrupting intracellular redox homeostasis,leading to posttranslational modifications(PTMs)of specific proteins,and eventually causing adaptive changes in metabolism.Here,we performed an iodoTMT-based proteomic approach to identify the sulfenylated proteins in B.napus root responsing to salt stress.Totally,1348 sulfenylated sites in 751 proteins were identified and these proteins were widely existed in different cell compartments and processes.Our study revealed that proteins with changed abundance and sulfenylation level in B.napus root under salt stress were mainly enriched in the biological processes of ion binding,glycolysis,ATP binding,and oxidative stress response.This study displays a landscape of sulfenylated proteins response to salt stress in B.napus root and provides some theoretical support for further understanding of the molecular mechanisms of redox regulation under salt stress in plants.

关 键 词：IodoTMT Brassica napus root Salt stress SULFENYLATION Redox regulation 

分 类 号：S565.4[农业科学—作物学]