生物技术通报 ›› 2019, Vol. 35 ›› Issue (6): 147-155.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0938

• 综述与专论 • 上一篇    下一篇

重金属对植物种子萌发胁迫及缓解的机制

李桂玲, 王琦, 王金水, 贾峰   

  1. 河南工业大学生物工程学院,郑州 450001
  • 收稿日期:2018-11-01 出版日期:2019-06-26 发布日期:2019-07-08
  • 作者简介:李桂玲,女,博士,副教授,研究方向:植物生理生物化学;E-mail:lgl_1@163.com
  • 基金资助:
    河南省教育厅自然科学项目(14B210010)

Mechanisms of Stress and Mitigation of Heavy Metals on Seed Germination of Plants

LI Gui-ling, WANG Qi, WANG Jin-shui, JIA Feng   

  1. College of Biological Engineering,Henan University of Technology,Zhengzhou 450001
  • Received:2018-11-01 Published:2019-06-26 Online:2019-07-08
  • About author:Heavy metals are non-essential elements to plant growth and have strong biotictoxicity. They are easily absorbed and accumulated by plants,but difficultly degraded,and cause damages to human health by good chain. This paper reviewed the effects of heavy metals on the morphological,physiological and biochemical,and molecular indexes during seed germination,including seed germination,the growth of plant seedlings,the activities of hydrolases such as amylase and esterase activities,antioxidant enzyme activities,soluble sugar and proline content,genotoxicity,and protein gene expression of the plants. In addition,the paper summarized the methods and treatment measures for alleviating toxicities from heavy metals,discussed the existing problems in the current research in this field,and highlighted the research direction for the treatment of plant heavy metal toxicity. It provides reference for the research and treatment of heavy metal pollution

摘要: 重金属元素一般为植物生长的非必需元素,具有较强的毒性,极易被植物吸收积累,降解困难,且能通过食物链危害人类健康。综述了近年来重金属对植物种子萌发过程中形态学指标、生理生化指标以及分子水平上的影响,主要包括重金属对植物种子萌发、幼苗生长、淀粉酶酯酶等水解酶活性、抗氧化酶活性、可溶性糖与脯氨酸含量及在细胞遗传毒性效应和蛋白基因表达水平上的影响,并总结了缓解植物重金属毒害的方法及治理措施,探讨了目前该领域研究中存在的问题,以及治理植物重金属毒害的研究方向,旨在为重金属污染研究与治理工作提供参考。

关键词: 重金属, 胁迫, 种子萌发, 缓解机制

Abstract: Heavy metals are non-essential elements to plant growth and have strong biotictoxicity. They are easily absorbed and accumulated by plants,but difficultly degraded,and cause damages to human health by good chain. This paper reviewed the effects of heavy metals on the morphological,physiological and biochemical,and molecular indexes during seed germination,including seed germination,the growth of plant seedlings,the activities of hydrolases such as amylase and esterase activities,antioxidant enzyme activities,soluble sugar and proline content,genotoxicity,and protein gene expression of the plants. In addition,the paper summarized the methods and treatment measures for alleviating toxicities from heavy metals,discussed the existing problems in the current research in this field,and highlighted the research direction for the treatment of plant heavy metal toxicity. It provides reference for the research and treatment of heavy metal pollution