1887

Abstract

An aerobic, moderately halophilic, Gram-negative, motile, non-sporulating bacterium, strain LIT2, was isolated from an oilfield-water injection after enrichment on crude oil. Strain LIT2 grew between 15 and 45 °C and optimally at 37 °C. It grew in the presence of 1–25 % (w/v) NaCl, with an optimum at 10 % (w/v) NaCl. Predominant fatty acids were C (26.9 %), C 7 (22.6 %), C 7 (20.4 %) C cyclo 8 (10.9 %) and C (8 %). Interestingly, the relative percentages of these last two fatty acids were intermediate compared with most species among the family for which fatty acid composition has been determined. The DNA G+C content was 53.7 mol%, which is very low among the family . Strain LIT2 exhibited 16S rRNA gene sequence similarity values of 94.06–95.15 % to members of the genus , 94.21–94.65 % to members of the genus and 93.57 % with the single species representative of the genus . Based on the phylogenetic and phenotypic evidence presented in this paper, we propose the name gen. nov., sp. nov. to accommodate strain LIT2. The type strain of is LIT2 (=CCUG 52917 =CIP 109206). A reassignment of the descriptive 16S rRNA signature characteristics of the family permitted placement of the new genus into the family.

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2007-10-01
2019-12-06
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