安徽农业科学2025，Vol.53Issue(3)：1-9,9.DOI:10.3969/j.issn.0517-6611.2025.03.001
植物对镉胁迫响应的分子机制研究进展
Research Progress on the Molecular Mechanism of Plant Response to Cadmium Stress
摘要
Abstract
Cadmium(Cd)pollution poses a severe global environmental challenge,threatening human health and ecosystems.This paper ex-plores the molecular response mechanisms of plant responses to Cd stress,with a focus on rice as a crucial food crop,examining its absorption,translocation,and tolerance to Cd.Studies indicate that Cd primarily enters the plant body through the roots,where it accumulates,with only a small fraction being transported to the aerial parts.The absorption and translocation of Cd within plants are mainly facilitated by transporters such as OsNramp5,OsIRT1,OsHMA3,and OsHMA2.Transcription factors from the WRKY,ERF,HSF,NAC,and MYB families regulate gene expression under Cd stress,affecting plant absorption and tolerance to Cd.Additionally,plant hormones and small molecular effectors,including auxin,jasmonic acid,abscisic acid,and salicylic acid,play regulatory roles in the response to Cd stress.Thiol-containing mole-cules like glutathione,phytochelatins,and metallothioneins are crucial for Cd detoxification in plants.The antioxidant system,comprising en-zymatic and non-enzymatic components,helps plants combat oxidative stress induced by Cd.This paper provides essential insights into the mo-lecular mechanisms of plant response to Cd stress and lays a theoretical foundation for developing rice varieties with low Cd accumulation.关键词
镉污染/分子机制/转运蛋白/转录因子/植物激素/抗氧化系统/水稻Key words
Cadmium pollution/Molecular mechanisms/Transport proteins/Transcription factors/Plant hormones/Antioxidant system/Rice分类
农业科技引用本文复制引用
陈瑾芬,胡淑宝,秦艺鸣,张智娟,吴甘霖..植物对镉胁迫响应的分子机制研究进展[J].安徽农业科学,2025,53(3):1-9,9.基金项目
皖西南生物多样性研究与生态保护安徽省重点实验室项目(FCZ202001001). （FCZ202001001）
