Arora Pankaj Kumar
Department of Microbiology, Babasaheb Bhimrao Ambedkar University, Lucknow, India.
Front Bioeng Biotechnol. 2020 Oct 9;8:570307. doi: 10.3389/fbioe.2020.570307. eCollection 2020.
Xenobiotic compounds are man-made compounds and widely used in dyes, drugs, pesticides, herbicides, insecticides, explosives, and other industrial chemicals. These compounds have been released into our soil and water due to anthropogenic activities and improper waste disposal practices and cause serious damage to aquatic and terrestrial ecosystems due to their toxic nature. The United States Environmental Protection Agency (USEPA) has listed several toxic substances as priority pollutants. Bacterial remediation is identified as an emerging technique to remove these substances from the environment. Many bacterial genera are actively involved in the degradation of toxic substances. Among the bacterial genera, the members of the genus have a great potential to degrade or transform various toxic substances. Many have been isolated and characterized by their ability to degrade or transform a wide range of compounds including both naturally occurring substances and xenobiotic compounds. This review describes the biodegradation potentials of toward various toxic substances, including 4-chloro-2-nitrophenol, insecticides, pesticides, herbicides, explosives, drugs, polycyclic aromatic compounds, heavy metals, azo dyes, and aromatic acids. Besides, the advanced technologies used for bioremediation of environmental pollutants using are also briefly described. This review will increase our understanding of -mediated degradation of xenobiotic compounds and heavy metals.
外源性化合物是人工合成的化合物,广泛应用于染料、药物、农药、除草剂、杀虫剂、炸药及其他工业化学品中。由于人为活动和不当的废物处理方式,这些化合物已释放到我们的土壤和水中,因其毒性对水生和陆地生态系统造成严重破坏。美国环境保护局(USEPA)已将几种有毒物质列为优先污染物。细菌修复被确定为一种从环境中去除这些物质的新兴技术。许多细菌属积极参与有毒物质的降解。在这些细菌属中, 属的成员具有降解或转化各种有毒物质的巨大潜力。许多 已通过其降解或转化包括天然存在的物质和外源性化合物在内的多种化合物的能力而被分离和表征。本综述描述了 对各种有毒物质的生物降解潜力,包括4-氯-2-硝基苯酚、杀虫剂、农药、除草剂、炸药、药物、多环芳烃、重金属、偶氮染料和芳香酸。此外,还简要介绍了利用 进行环境污染物生物修复的先进技术。本综述将增进我们对 介导的外源性化合物和重金属降解的理解。