Thiosulfate Oxidation by <Emphasis Type="Italic">Comamonas</Emphasis> sp. S23 Isolated from a Sulfur Spring |
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Authors: | Shachindra K Pandey Kunwar Digvijay Narayan Saumya Bandyopadhyay Kinshuk C Nayak Subrata K Das |
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Institution: | (1) Department of Biotechnology, Institute of Life Sciences, Nalco Square, Bhubaneswar, 751 023, India |
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Abstract: | A bacterial isolate S23 capable of oxidizing thiosulfate was isolated from a sulfur spring. Strain S23 is gram-negative, aerobic,
and motile. The G + C content of DNA is 61.4 mol%. The fatty acid composition and phylogenetic analysis of the 16S rRNA gene
sequence of strain S23 showed that it is related to the members of the genus Comamonas, and most closely related to Comamonas testosteroni (99.9% sequence similarity). The isolate S23 exhibited thiosulfate oxidation under a mixotrophic growth condition. Polymerase
chain reaction (PCR) using soxB-specific primers and DNA sequencing showed the presence of the soxB gene. This is the first report in Comamonas sp. showing thiosulfate oxidation under a mixotrophic growth condition. |
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