蔬菜Issue(2)：17-33,17.DOI:10.26924/j.cnki.sczz.2026.2002
热胁迫下辣椒生理生化响应机制及分子机制研究进展
Research Progress on the Physiological,Biochemical and Molecular Mechanisms of Pepper in Response to High-temperature Stress
摘要
Abstract
Pepper is an important vegetable and economic crop in China,and its growth and development are susceptible to high-temperature stress,often resulting in reduced yield and quality deterioration.This paper systematically reviews the research progress on the physiological mechanisms of pepper in response to high-temperature stress and the molecular mechanisms underlying its thermotolerance formation.At the physiological level,high-temperature stress inhibits seed germination and plant growth,disrupts photosynthetic and metabolic balance,induces cell membrane damage,reactive oxygen species accumulation,dynamic changes in osmoregulatory substances and endogenous hormones,and affects the synthesis and accumulation of secondary metabolites such as capsaicin.At the molecular level,pepper constructs a multi-layered response network through heat signal perception and transduction,the expression of heat shock proteins(HSPs),and the coordinated regulation of transcription factors such as HSF,WRKY,AP2/ERF,bZIP and NAC.Transcriptomic and epigenomic studies further reveal its systematic regulatory characteristics.In terms of thermotolerance identification and improvement,a combination of morphological,physiological and molecular indicators,along with hybridization breeding and molecular marker-assisted selection,has led to the screening of a batch of heat-tolerant germplasm resources.Genomics and gene editing technologies provide new technical means for the precise improvement of heat-tolerant traits.The article also points out that current shortcomings in simulating field compound stress,inking physiological and molecular mechanisms,analyzing multi-gene networks and constructing genetic transformation systems.It suggests that future research should strengthen studies on multi-stress interactions,elucidate the molecular basis of key physiological phenotypes,integrate multi-omics data and construct regulatory networks,and promote the application of efficient genetic transformation and gene editing technologies to advance the theoretical understanding and breeding practices of heat tolerance in pepper.关键词
辣椒/高温胁迫/耐热性/生理响应/分子机制/热激蛋白/基因编辑/遗传育种Key words
pepper/high-temperature stress/thermotolerance/physiological response/molecular mechanism/heat shock protein/gene editing/genetic breeding分类
农业科技引用本文复制引用
谢煜坤,刘嘉超,鹿腾飞,严万成,陈长明..热胁迫下辣椒生理生化响应机制及分子机制研究进展[J].蔬菜,2026,(2):17-33,17.基金项目
国家自然科学基金(32570304) （32570304）
广东省基础与应用基础研究基金(2024A1515010403) （2024A1515010403）
广东省蔬菜产业技术体系(2024CXTD08). （2024CXTD08）
