The molecular basis of heat stress responses in plants

Yi Kan; Xiao-Rui Mu; Jin Gao; Hong-Xuan Lin; Youshun Lin

doi:10.1016/j.molp.2023.09.013

The molecular basis of heat stress responses in plants

Mol Plant. 2023 Oct 2;16(10):1612-1634. doi: 10.1016/j.molp.2023.09.013. Epub 2023 Sep 22.

Authors

Yi Kan¹, Xiao-Rui Mu², Jin Gao², Hong-Xuan Lin³, Youshun Lin⁴

Affiliations

¹ National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
² National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China.
³ National Key Laboratory of Plant Molecular Genetics, CAS Centre for Excellence in Molecular Plant Sciences, Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences, Shanghai 200032, China; University of the Chinese Academy of Sciences, Beijing 100049, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China. Electronic address: hxlin@cemps.ac.cn.
⁴ Joint Center for Single Cell Biology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: linyoushun@sjtu.edu.cn.

PMID: 37740489
DOI: 10.1016/j.molp.2023.09.013

Abstract

Global warming impacts crop production and threatens food security. Elevated temperatures are sensed by different cell components. Temperature increases are classified as either mild warm temperatures or excessively hot temperatures, which are perceived by distinct signaling pathways in plants. Warm temperatures induce thermomorphogenesis, while high-temperature stress triggers heat acclimation and has destructive effects on plant growth and development. In this review, we systematically summarize the heat-responsive genetic networks in Arabidopsis and crop plants based on recent studies. In addition, we highlight the strategies used to improve grain yield under heat stress from a source-sink perspective. We also discuss the remaining issues regarding the characteristics of thermosensors and the urgency required to explore the basis of acclimation under multifactorial stress combination.

Keywords: global warming; heat acclimation; heat stress; heat stress responses; thermomorphogenesis; thermosensing.

Publication types

Review
Research Support, Non-U.S. Gov't

MeSH terms

Arabidopsis* / metabolism
Heat-Shock Response* / genetics
Hot Temperature
Plants
Temperature