外源钙诱导植物应答镉胁迫的效应及作用机制研究进展

Research Progress on Effect and Mechanism ofExogenous Calcium Induced Plant Response to Cadmium Stress

HUANG Yanxin1，WU Xiang1， CAO Yan1， YAN Xuyu 1，2* ， LI Ling1，2* （1.College ofLifeSicence，Yan’an University，ShaanxiYan'an6ooo，China；2.ShaanxiKeyLaboratoryofChineseJujube， Yan'an University，Shaanxi Yan'an716Ooo，China）

Abstract：Cadmium（Cd）is one of the most serious soil polutants in China.It can accumulate in plants through absorption byroots or leaves，leading to interference in various physiological and biochemical functions，causing disruption of plant physiological metabolism and growth inhibition.Calcium（Ca）playsan important role in the growth and development of plants and the response to environmental signals.The efects of exogenous Ca on the Cd accumulationanddistribution，growth and development，photosynthesis，antioxidant system，nutrients and morphological indicators of the plants were summaried，and the mechanismofCa signaling induced plant response to Cd stress was discussed，which provided reference for plant ecological remediation of Cd-contaminated soil.

Keywords：calcium；cadmium；physiology and biochemistry；response mechanism

钙（Ca）在植物的生长发育及其对环境信号的响应中起着重要作用。（剩余7256字）