School of Emergency Management, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, PR China; Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, PR China.
Institute of Environment and Ecology, School of the Environment and Safety Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang, 212013, Jiangsu Province, PR China.
Chemosphere. 2024 Oct;365:143397. doi: 10.1016/j.chemosphere.2024.143397. Epub 2024 Sep 21.
Phytoremediation, the use of plants to remove heavy metals from polluted environments, has been extensively studied. However, abiotic stresses such as drought, salt, and high temperatures can limit plant growth and metal uptake, reducing phytoremediation efficiency. High levels of HMs are also toxic to plants, further decreasing phytoremediation efficacy. This manuscript explores the potential of microbial-assisted and chelation-supported approaches to improve phytoremediation under abiotic stress conditions. Microbial assistance involves the use of specific microbes, including fungi that can produce siderophores. Siderophores bind essential metal ions, increasing their solubility and bioavailability for plant uptake. Chelation-supported methods employ organic acids and amino acids to enhance soil absorption and supply of essential metal ions. These chelating agents bind HMs ions, reducing their toxicity to plants and enabling plants to better withstand abiotic stresses like drought and salinity. Managed microbial-assisted and chelation-supported approaches offer more efficient and sustainable phytoremediation by promoting plant growth, metal uptake, and mitigating the effects of heavy metal and abiotic stresses. Managed microbial-assisted and chelation-supported approaches offer more efficient and sustainable phytoremediation by promoting plant growth, metal uptake, and mitigating the effects of HMs and abiotic stresses.These strategies represent a significant advancement in phytoremediation technology, potentially expanding its applicability to more challenging environmental conditions. In this review, we examined how microbial-assisted and chelation-supported techniques can enhance phytoremediation a method that uses plants to remove heavy metals from contaminated sites. These approaches not only boost plant growth and metal uptake but also alleviate the toxic effects of HMs and abiotic stresses like drought and salinity. By doing so, they make phytoremediation a more viable and effective solution for environmental remediation.
植物修复，即利用植物去除污染环境中的重金属，已经得到了广泛的研究。然而，非生物胁迫，如干旱、盐和高温等，会限制植物的生长和金属吸收，降低植物修复的效率。高水平的重金属对植物也有毒性，进一步降低了植物修复的效果。本文探讨了微生物辅助和螯合支持方法在改善非生物胁迫条件下植物修复的潜力。微生物辅助涉及使用特定的微生物，包括能产生铁载体的真菌。铁载体结合必需的金属离子，增加其在植物吸收中的溶解度和生物利用度。螯合支持方法利用有机酸和氨基酸来增强土壤对必需金属离子的吸收和供应。这些螯合剂与重金属离子结合，降低其对植物的毒性，使植物能够更好地承受干旱和盐度等非生物胁迫。管理微生物辅助和螯合支持的方法通过促进植物生长、金属吸收以及减轻重金属和非生物胁迫的影响，提供更高效和可持续的植物修复。管理微生物辅助和螯合支持的方法通过促进植物生长、金属吸收以及减轻重金属和非生物胁迫的影响，提供更高效和可持续的植物修复。这些策略代表了植物修复技术的重大进展，可能会扩大其在更具挑战性的环境条件下的应用。在本综述中，我们研究了微生物辅助和螯合支持技术如何增强植物修复——一种利用植物从污染场地去除重金属的方法。这些方法不仅能促进植物的生长和金属吸收，还能减轻重金属和干旱、盐度等非生物胁迫的毒性影响。通过这样做，它们使植物修复成为更可行和有效的环境修复解决方案。
