Journal
INTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY
Volume 61, Issue -, Pages 295-298Publisher
MICROBIOLOGY SOC
DOI: 10.1099/ijs.0.022962-0
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Funding
- Scientific Research Foundation of Third Institute of Oceanography, SOA [2009065]
- COMRA [DYXM115-02-2-05]
- National Infrastructure of Natural Resources for Science and Technology Program of China [2005DKA21209]
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A taxonomic study was carried out on a novel bacterial strain, designated C115(T), isolated from a crude-oil-degrading consortium, enriched from deep-sea water of the Indian Ocean. Cells were Gram-negative short rods, mobile by means of a monopolar flagellum. Growth was observed at salinities of 0-7% and at 10-43 degrees C. It was unable to degrade Tween 80 or gelatin. 16S rRNA gene sequence analysis showed that strain C115(T) was related most closely to Nitratireductor aquibiodomus NL21(T) (96.5% similarity), Nitratireductor kimnyeongensis KY 101(T) (96.4 %) and Nitratireductor basaltis J3(T) (96.2 %. The predominant fatty acids were summed feature 8 (C-18:1 omega 7c and/or C-18:1 omega 6c, 81.8%) and C-18:0(7.0 %). The G + C content of the chromosomal DNA of strain C115(T) was 59 mol%. Based on its morphology, physiology and fatty acid composition together with 16S rRNA gene sequence comparisons, the novel strain most appropriately belongs to the genus Nitratireductor, but can be distinguished readily from recognized species of the genus. Strain C115(T) is therefore considered to represent a novel species of the genus Nitratireductor, for which the name Nitratireductor indicus sp. nov. is proposed. The type strain is C115(T) (=RC92-7(T) =CCTCC AB 209298(T) =LMG 25540(T) =MCCC 1A01260(T)).
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