Emerging strategies to improve heat stress tolerance in crops  

作　　者：Jiawei Xiong Hao Wang Zhaohui Zhong Shigui Li Peng Qin 

机构地区：[1]State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China,Rice Research Institute,Sichuan Agricultural University,Chengdu 611130,China

出　　处：《aBIOTECH》2025年第1期97-115,共19页生物技术通报(英文版)

基　　金：supported by the National Natural Science Foundation of China(32325038,32301865,U22A20465);the Sichuan Science and Technology Program(2024NSFSC0338).

摘　　要：The heat stress(HS)response in plants involves complex processes at the molecular,cellular,and whole-organism levels.Sensitivity to HS differs based on the species and developmental stage of the plant,making it challenging to define HS and its impacts.Efforts to enhance HS tolerance by traditional breeding are constrained by limited genetic resources,but understanding the mechanisms that regulate HS responses can enable efforts to improve heat tolerance by precision breeding and gene editing.Here,we review recent research on the effects of HS on major cereal crops at different developmental stages and identify key genes potentially involved in the HS response,offering insight for precision molecular breeding.Additionally,we discuss the use of favorable natural variants and gene editing to improve crop tolerance to HS,emphasizing the value of alleles involved in thermomemory,combined stress tolerance,and the stress response–growth balance.This review aims to summarize recent advancements in understanding HS responses in crops,highlighting potential avenues for generating heattolerant crops.

关 键 词：Heat stress High temperature CROPS THERMOTOLERANCE Thermotolerance breeding 

分 类 号：S51[农业科学—作物学]