College of Life Sciences, Changchun University of Science and Technology, Changchun, 130600, China.
College of Resources and Environment, Jilin Agricultural University, Changchun, 130118, China.
Plant Cell Rep. 2024 Mar 18;43(4):99. doi: 10.1007/s00299-024-03189-9.
In this manuscript, authors reviewed and explore the information on beneficial role of phytohormones to mitigate adverse effects of heavy metals toxicity in plants. Global farming systems are seriously threatened by heavy metals (HMs) toxicity, which can result in decreased crop yields, impaired food safety, and negative environmental effects. A rise in curiosity has been shown recently in creating sustainable methods to reduce HMs toxicity in plants and improve agricultural productivity. To accomplish this, phytohormones, which play a crucial role in controlling plant development and adaptations to stress, have emerged as intriguing possibilities. With a particular focus on environmentally friendly farming methods, the current review provides an overview of phytohormone-mediated strategies for reducing HMs toxicity in plants. Several physiological and biochemical activities, including metal uptake, translocation, detoxification, and stress tolerance, are mediated by phytohormones, such as melatonin, auxin, gibberellin, cytokinin, ethylene, abscisic acid, salicylic acid, and jasmonates. The current review offers thorough explanations of the ways in which phytohormones respond to HMs to help plants detoxify and strengthen their resilience to metal stress. It is crucial to explore the potential uses of phytohormones as long-term solutions for reducing the harmful effects of HMs in plants. These include accelerating phytoextraction, decreasing metal redistribution to edible plant portions, increasing plant tolerance to HMs by hormonal manipulation, and boosting metal sequestration in roots. These methods seek to increase plant resistance to HMs stress while supporting environmentally friendly agricultural output. In conclusion, phytohormones present potential ways to reduce the toxicity of HMs in plants, thus promoting sustainable agriculture.
在本文中，作者综述并探讨了植物中植物激素缓解重金属毒性的有益作用的信息。全球农业系统受到重金属（HM）毒性的严重威胁，这会导致作物产量下降、食品安全受损和环境负面影响。最近，人们对创造可持续的方法来减轻植物中的 HM 毒性并提高农业生产力表现出了浓厚的兴趣。为此，植物激素作为控制植物发育和适应胁迫的关键因素，已成为引人关注的可能性。本综述特别关注环保型农业方法，概述了植物中通过植物激素减轻 HM 毒性的策略。几种生理和生化活动，包括金属吸收、转运、解毒和胁迫耐受，都受到植物激素的调节，如褪黑素、生长素、赤霉素、细胞分裂素、乙烯、脱落酸、水杨酸和茉莉酸。本综述详细解释了植物激素对 HM 的响应方式，以帮助植物解毒并增强其对金属胁迫的恢复力。探索植物激素作为减轻植物中 HM 有害影响的长期解决方案的潜力至关重要。这些方法包括加速植物提取、减少金属向可食用植物部分的再分配、通过激素处理增加植物对 HM 的耐受性以及增强根部的金属螯合作用。这些方法旨在提高植物对 HM 胁迫的抵抗力，同时支持环保型农业产出。总之，植物激素为减轻植物中 HM 的毒性提供了潜在的途径，从而促进了可持续农业的发展。
