Publications

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production of polypeptide antibiotic from streptomyces parvulus and its antibacterial activity.a highly potent secondary metabolite producing actinomycetes strain is isolated from marine soil sediments of visakhapatnam sea coast, bay of bengal. over all ten strains are isolated from the collected soil sediments. among the ten actinomycetes strains the broad spectrum strain rspsn2 was selected for molecular characterization, antibiotic production and its purification. the nucleotide sequence of the 1 rrna gene (1261 base pairs) of the most potent strain evidenced a 96% similarity with stre ...201424948949
hydrogen formation by an arsenate-reducing pseudomonas putida, isolated from arsenic-contaminated groundwater in west bengal, india.anaerobic growth of a newly isolated pseudomonas putida strain wb from an arsenic-contaminated soil in west bengal, india on glucose, l: -lactate, and acetate required the presence of arsenate, which was reduced to arsenite. during aerobic growth in the presence of arsenite arsenate was formed. anaerobic growth of p. putida wb on glucose was made possible presumably by the non-energy-conserving arsenate reductase arsc with energy derived only from substrate level phosphorylation. two moles of ac ...201020821202
effect of carbon sources and of sulfate on microbial arsenic mobilization in sediments of west bengal, india.arsenic (as) dissolution from sediments into groundwater in the bengal delta/west india was investigated. two experimental sites were choosen with contrasting as concentrations in shallow groundwater. apparently patches of high-as and low-as sediments occured in close neigbourhood. a fast as mobilization with lactate or ethanol as carbon sources and sulfate as an electron acceptor and a possible influence of indigenous flora because of higher as amounts and an increasing total cell count was obs ...201323453350
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