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Abstract

A Gram-negative, aerobic, motile, halophilic bacterium, designated strain BC7, was isolated from a salt mine in north-western China and was subjected to a polyphasic taxonomic characterization. The isolate was able to grow in the presence of 0.5–20 % (w/v) NaCl and at pH 6.0–9.0 and 4–48 °C; optimum growth was observed with 3 % (w/v) NaCl and at pH 7.0 and 30 °C. Cells were long rods, 0.8–1.2 μm wide and 4.0–6.0 μm long. The major fatty acids were C 7, C and C 7. The DNA G+C content was 65.5 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain BC7 belonged to the genus and showed highest sequence similarity to the type strain of (99.2 %). Levels of DNA–DNA relatedness between strain BC7 and CGMCC 1.2314 and DSM 16463 were 51 and 38 %, respectively. On the basis of phenotypic and genotypic data, strain BC7 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is BC7 (=CGMCC 1.6774 =JCM 14803).

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2008-12-01
2019-10-19
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Optical (a), scanning electron (b) and transmission electron (c) micrographs of cells of strain BC7 cells grown in HM broth. Bars, 5 µm (a), 2 µm (b) and 1 µm (c).

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Extended phylogenetic tree based on 16S rRNA gene sequences of all species of the genus . [PDF](22 KB)

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