Darma Aminu, Yang Jianjun, Zandi Peiman, Liu Jin, Możdżeń Katarzyna, Xia Xing, Sani Ali, Wang Yihao, Schnug Ewald
Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Department of Biological Sciences, Faculty of Life Science, Bayero University, Kano 700006, Nigeria.
Biology (Basel). 2022 Mar 18;11(3):472. doi: 10.3390/biology11030472.
The distribution of arsenic continues due to natural and anthropogenic activities, with varying degrees of impact on plants, animals, and the entire ecosystem. Interactions between iron (Fe) oxides, bacteria, and arsenic are significantly linked to changes in the mobility, toxicity, and availability of arsenic species in aquatic and terrestrial habitats. As a result of these changes, toxic As species become available, posing a range of threats to the entire ecosystem. This review elaborates on arsenic toxicity, the mechanisms of its bioavailability, and selected remediation strategies. The article further describes how the detoxification and methylation mechanisms used by species could serve as a potential tool for decreasing phytoavailable As and lessening its contamination in the environment. If taken into account, this approach will provide a globally sustainable and cost-effective strategy for As remediation and more information to the literature on the unique role of this bacterial species in As remediation as opposed to conventional perception of its role as a mobiliser of As.
由于自然和人为活动，砷的分布仍在持续，对植物、动物和整个生态系统产生不同程度的影响。铁（Fe）氧化物、细菌与砷之间的相互作用与水生和陆地生境中砷物种的迁移性、毒性和有效性的变化密切相关。这些变化导致有毒的砷物种出现，对整个生态系统构成一系列威胁。本综述阐述了砷的毒性、其生物有效性的机制以及选定的修复策略。文章进一步描述了该物种所使用的解毒和甲基化机制如何能够作为一种潜在工具，用于降低植物可利用的砷并减少其在环境中的污染。如果加以考虑，这种方法将为砷的修复提供一种全球可持续且具有成本效益的策略，并为文献提供更多关于该细菌物种在砷修复中的独特作用的信息，这与传统上认为其是砷的活化剂的看法不同。
