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标题：Characterization of Arsenic Resistant Bacteria from Shallow Tubewell and Evaluation of their Remediation Capacity
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作者：Lianthuamluaiaj ; P. K. Pandey ; C. S. Purushothaman 等
期刊名称：Nature, Environment and Pollution Technology
印刷版ISSN：0972-6268
出版年度：2015
卷号：14
期号：1
语种：English
出版社：Technoscience Publications
摘要：The present study was conducted to characterize arsenic resistant bacteria and to evaluate their arsenicremediation capacity. Water samples were collected from the shallow tubewell of Deganga, West Bengal.The arsenic content of shallow tubewell water was 45.07 µg/L. 16S rDNA analysis characterized the isolatedarsenic resistant bacteria from the shallow tubewell water to be under the genus Pseudomonas andAcinetobacter. Minimum inhibition concentration (MIC) of arsenic for the selected bacterial isolatesPseudomonas sp. and Acinetobacter sp. was found to be 7 and 17.5 mM As(III), respectively. The selectedbacterial isolates were capable of removing arsenic in the range of 1.54-5.95% from the nutrient brothsupplemented with 25, 50, 75 and 100 mg/L As(III). Analysis of variance (ANOVA) indicated a significantdifference (P<0.05) in arsenic removal between the arsenic concentrations, but there was no significantdifference (P>0.05) between the selected bacterial isolates. The selected bacterial isolates could thus beuseful for developing a technology for biological removal of arsenic by standardizing certain parameters forthe optimum removal of arsenic by the selected bacterial isolates.