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

doi:10.13560/j.cnki.biotech.bull.1985.2018-0938

Abstract

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

LI Gui-ling, WANG Qi, WANG Jin-shui, JIA Feng. Mechanisms of Stress and Mitigation of Heavy Metals on Seed Germination of Plants[J]. Biotechnology Bulletin, 2019, 35(6): 147-155.

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