生物技术通报 ›› 2022, Vol. 38 ›› Issue (6): 13-26.doi: 10.13560/j.cnki.biotech.bull.1985.2021-1286

• 综述与专论 • 上一篇    下一篇

植物响应Cd胁迫研究进展

刘自然1(), 甄珍1, 陈强2, 李玥莹1, 王泽1, 逄洪波1()   

  1. 1.沈阳师范大学生命科学学院,沈阳 110034
    2.沈阳师范大学实验教学中心,沈阳 110034
  • 收稿日期:2021-10-09 出版日期:2022-06-26 发布日期:2022-07-11
  • 作者简介:刘自然,女,硕士研究生,研究方向:作物资源开发与利用;E-mail: 1747356578@qq.com
  • 基金资助:
    沈阳市中青年科技创新人才计划(RC190223);沈阳师范大学“百人计划”拔尖人才项目(SSDBRJH2002012);沈阳师范大学重大项目孵化工程(ZD20210)

Research Progress in Plant Response to Cd Stress

LIU Zi-ran1(), ZHEN Zhen1, CHEN Qiang2, LI Yue-ying1, WANG Ze1, PANG Hong-bo1()   

  1. 1. College of Life Science,Shenyang Normal University,Shenyang 110034
    2. Experiment Teaching Center,Shenyang Normal University,Shenyang 110034
  • Received:2021-10-09 Published:2022-06-26 Online:2022-07-11

摘要:

镉(Cd)是一种毒性极强的重金属污染物,位于土壤无机污染物首位。Cd因具有强流动性和溶解性而容易被植物体吸收,不仅影响植物正常生理代谢并降低作物品质,还能通过食物链的传递和富集危害人体健康,因此植物对Cd胁迫的响应机制已成为研究的热点。本文综述了Cd胁迫对植物生理代谢和分子层次危害的同时,总结了植物在Cd胁迫下进化出的耐受性机制,以期为培育低积累作物和超积累Cd污染土壤修复植物提供理论依据。

关键词: Cd胁迫, 耐受性, 生理指标, 分子机制

Abstract:

Cadmium(Cd)is a heavy metal pollutant with heavy toxicity,ranking the first in soil inorganic pollutants. Cd can be absorbed by plants because of its strong fluidity and solubility. It affects the normal physiological metabolism of plants,reduces crop quality,and endangers human health through the transmission and enrichment of the food chain. Therefore,the response mechanism of plants to Cd stress has become a research hotspot. This paper reviews the damage effects of Cd stress on plant physiological metabolism and molecular level,and summarizes the tolerance mechanism that plants have evolved under Cd stress,aiming to provide a theoretical basis for cultivating low-accumulation crops and super-accumulation plants of remediating Cd contaminated soil.

Key words: Cd stress, tolerance, physiological index, molecular mechanism