Role of phytohormones in heavy metal tolerance in plants: A review
文献类型: 外文期刊
第一作者: Rahman, Shafeeq Ur
作者: Rahman, Shafeeq Ur;Li, Yanliang;Rahman, Shafeeq Ur;Cheng, Hefa;Hussain, Sajjad;Hussain, Babar;Khan, Waqas-ud-Din;Riaz, Luqman;Ashraf, Muhammad Nadeem;Khaliq, Muhammad Athar;Du, Zhenjie;Du, Zhenjie
作者机构:
关键词: Heavy metal toxicity; Phytohormones; Phytohormonal cross -talk; Genetic alteration; Plant tolerance
期刊名称:ECOLOGICAL INDICATORS ( 影响因子:6.9; 五年影响因子:6.6 )
ISSN: 1470-160X
年卷期: 2023 年 146 卷
页码:
收录情况: SCI
摘要: Heavy metal (HM)-mediated toxic effects on plants have attained considerable attention worldwide as they directly threaten the food supply chain. Although various measures have been taken to mitigate the adverse effects of heavy metal stress in plants, significant research gaps must be proactively addressed. Fascinatingly, the exogenous application of phytohormones has recently attained substantial interest in regulating the negative effects of HM stress. Phytohormones are signaling transductional molecules that mitigate HM toxicity in plants and support their growth and development. Both exogenous treatments and manipulation of the endogenous status of phytohormones through regulating their signaling/biosynthesis-related genes are effective strategies for protecting plants against HM-induced toxic effects. However, to achieve maximum benefits from phytohormonemediated subcellular mechanisms to mitigate HM toxicity, it is necessary to gain in-depth understanding on their potential pathways. The current review focuses primarily on the major mechanistic phytohormonal-mediated approaches involved in alleviating the toxic effects of HMs in plants. Moreover, the potential roles of major phytohormones in triggering protein molecules, signaling transductions, and gene expressions to avoid, tolerate, or alleviate HM toxicity in plants are also discussed. This information provides systematic understanding on the mechanisms of phytohormones in modulating heavy metal tolerance in plants and could help to guide the development of strategies to improve plant tolerance against HM toxicity.
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