The UDP-glycosyltransferase OsUGT706D2 positively regulates cold and submergence stress tolerance in rice  

作　　者：Qing Liu Lanlan Zhang Shuwei Lyu Hang Yu Wenjie Huang Liqun Jiang Jing Zhang Bingrui Sun Xingxue Mao Pingli Chen Junlian Xing Wenfeng Chen Zhilan Fan Shijuan Yan Chen Li 

机构地区：[1]Guangdong Key Laboratory of New Technology in Rice Breeding/Guangdong Rice Engineering Laboratory/Key Laboratory of Genetics and Breeding of High Quality Rice in Southern China(Co-construction by Ministry and Province),Ministry of Agriculture and Rural Affairs,Rice Research Institute,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,Guangdong,China [2]Guangdong Key Laboratory for Crop Germplasm Resources Preservation and Utilization,Agro-biological Gene Research Center,Guangdong Academy of Agricultural Sciences,Guangzhou 510640,Guangdong,China

出　　处：《The Crop Journal》2024年第3期732-742,共11页作物学报（英文版）

基　　金：jointly funded by National Natural Science Foundation of China(32372206);the Natural Science Foundation of Guangdong Province(2023A1515030224,2023A0505090005,2021TQ06N115);the Governor’s Special Program of 2023(Yuecainong[2023]No.145);the Key Field Research and Development Project of Guangdong Province(2022B0202110003);the Special Fund for Scientific Innovation Strategy-Construction of High Level Academy of Agriculture Science(R2020PY-JX001);Guangdong Key Laboratory of New Technology in Rice Breeding(2023B1212060042)。

摘　　要：In a genome-wide association study,we identified a rice UDP-glycosyltransferase gene,OsUGT706D2,whose transcription was activated in response to cold and submergence stress and to exogenous abscisic acid(ABA).OsUGT706D2 positively regulated the biosynthesis of tricin-4’-O-(syringyl alcohol)ether-7-O-glucoside at both the transcriptional and metabolic levels.OsUGT706D2 mediated cold and submergence tolerance by modulating the expression of stress-responsive genes as well as the abscisic acid(ABA)signaling pathway.Gain of function of OsUGT706D2 increased cold and submergence tolerance and loss of function of OsUGT706D2 reduced cold tolerance.ABA positively regulated OsUGT706D2-mediated cold tolerance but reduced submergence tolerance.These findings suggest the potential use of OsUGT706D2 for improving abiotic stress tolerance in rice.

关 键 词：UDP-glycosyltransferase RICE Cold tolerance Submergence tolerance ABA 

分 类 号：S511[农业科学—作物学]