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Volume 63, Issue Pt_10

gen. nov., sp. nov., a selenate- and arsenate-respiring bacterium in the Free

Abstract

A Gram-type-negative, obligately anaerobic, selenate-respiring bacterium, strain S4, was isolated from activated sludge of a wastewater treatment plant in New Jersey after enrichment with 10 mM selenate as the sole electron acceptor. In addition to its selenate-respiring capability, strain S4 also respired arsenate with acetate as carbon source and electron donor. Fermentative growth was not observed. The optimum growth temperature was 37 °C and optimum pH was pH 7. Phylogenetic analysis of the 16S rRNA gene sequence revealed that strain S4 is a novel member of the family , with the type strain of as its closest cultivated relative, with 91.5 % sequence similarity. The cellular fatty acid profile was composed predominantly of straight-chain fatty acids C, C, C, C and C, which distinguishes this organism from its closest relatives. The DNA G+C content was 47.7 mol%. Together, these findings support the conclusion that strain S4 represents a novel genus and species, for which the name gen. nov., sp. nov. is proposed. The type strain of is S4 ( = DSM 24984 = ATCC BAA-2290).

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Funding
This study was supported by the:
  • National Science Foundation (Award EAR 084329530)
© 2013 IUMS
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2013-10-01
2024-04-25
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Seleniivibrio woodruffii gen. nov., sp. nov., a selenate- and arsenate-respiring bacterium in the Deferribacteraceae
Int J Syst Evol Microbiol 63, 3659 (2013); https://doi.org/10.1099/ijs.0.043547-0
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