Arsenic Bioremediation Potential of Arsenite-Oxidizing Micrococcus sp.KUMAs15 Isolated from Contaminated Soil

Tanmoy PAUL; Arindam CHAKRABORTY; Ekramul ISLAM; Samir Kumar MUKHERJEE

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Arsenic Bioremediation Potential of Arsenite-Oxidizing Micrococcus sp.KUMAs15 Isolated from Contaminated Soil

机译：从污染土壤中分离砷氧化微球菌sp.KUMAs15的砷生物修复潜力。

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Environmental arsenic (As) contamination,considered as the largest mass poisoning of the human population,has become a serious health concern for the people of South East Asia,including those living in the Bengal delta.An As-resistant strain,KUMAs15,was isolated from the As-contaminated fields in Nadia Ddistrict in West Bengal,India and was evaluated for its possible use in environmental As bioremediation.Molecular identification based on 16S rDNA gene sequencing revealed that the strain belonged to the genus Micrococcus.The strain tolerated high levels of As and oxidized arsenite under the culture condition.The strain also accumulated large quantities of As when exposed to a wide range of environmentally relevant concentrations of inorganic As.Analysis of the aoxB,arsB,and arsC gene expression explained the underlying cause of arsenite oxidation and As accumulation by KUMAs15.The As-resistant strain KUMAs15 of Micrococcus sp.was suggested to be a potential environmental As decontaminant.

机译：环境砷被认为是人类中最大的大规模中毒事件，已成为东南亚人民，包括生活在孟加拉三角洲的人们的严重健康隐患。分离出一种抗砷菌株KUMAs15来自印度西孟加拉邦Nadia Ddistrict的被As污染的田野，并对其在环境As生物修复中的可能用途进行了评估。基于16S rDNA基因测序的分子鉴定表明该菌株属于Micrococcus属。在培养条件下，砷和氧化的亚砷酸盐。当菌株暴露于各种环境相关浓度的无机砷中时，该菌株也会积累大量的砷。对aoxB，arsB和arsC基因表达的分析解释了砷酸盐氧化和氧化的根本原因。提示KUMAs15积累了As.Micrococcus sp。的抗As菌株KUMAs15可能是潜在的环境砷污染nt。

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《土壤圈（英文版）》 |2018年第2期|299-310|共12页
作者
Tanmoy PAUL; Arindam CHAKRABORTY; Ekramul ISLAM; Samir Kumar MUKHERJEE;
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作者单位

Department of Microbiology, University of Kalyani, Kalyani 741235(India);

Department of Microbiology, University of Kalyani, Kalyani 741235(India);

Department of Microbiology, University of Kalyani, Kalyani 741235(India);

Department of Microbiology, University of Kalyani, Kalyani 741235(India);

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收录信息中国科学引文数据库(CSCD);中国科技论文与引文数据库(CSTPCD);
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Arsenic Bioremediation Potential of Arsenite-Oxidizing Micrococcus sp.KUMAs15 Isolated from Contaminated Soil

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