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Poddar Kasturi Sarkar Debapriya Sarkar Angana 《Environmental science and pollution research international》2023,30(10):25226-25238
Environmental Science and Pollution Research - Synthetic dyes are established colorants in the pharmaceutical industries for the coating and coloration of tablets, capsules, etc. to mark the... 相似文献
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Maity Sourav Nanda Soumyashree Sarkar Angana 《Environmental science and pollution research international》2021,28(42):58885-58901
Environmental Science and Pollution Research - Biosorption is an ingenious technique that uses biological materials to acquire trace metal ions from wastewater. In the present study, the ability of... 相似文献
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Angana Sarkar Sufia K Kazy Pinaki Sar 《Environmental science and pollution research international》2014,21(14):8645-8662
Ten different Gram-negative arsenic (As)-resistant and As-transforming bacteria isolated from As-rich groundwater of West Bengal were characterized to assess their role in As mobilization. 16S rRNA gene analysis confirmed the affiliation of these bacteria to genera Achromobacter, Brevundimonas, Rhizobium, Ochrobactrum, and Pseudoxanthomonas. Along with superior As-resistance and As-transformation abilities, the isolates showed broad metabolic capacity in terms of utilizing a variety of electron donors and acceptors (including As) under aerobic and anaerobic conditions, respectively. Arsenic transformation studies performed under various conditions indicated highly efficient As3+ oxidation or As5+ reduction kinetics. Genes encoding As3+ oxidase (aioA), cytosolic As5+ reductase (arsC), and As3+ efflux pump (arsB and acr3) were detected within the test isolates. Sequence analyses suggested that As homeostasis genes (particularly arsC, arsB, and acr3) were acquired by most of the bacteria through horizontal gene transfer. A strong correlation between As resistance phenotype and the presence of As3+ transporter genes was observed. Microcosm study showed that bacterial strain having cytosolic As5+ reductase property could play important role in mobilizing As (as As3+) from subsurface sediment. 相似文献
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