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Abstract

A Gram-stain-negative, non-motile, reniform bacterial strain, B2974, was isolated from an ice core of the Muztagh Glacier, on the Tibetan Plateau, China. Strain B2974 grew optimally at pH 7.0–7.5 and 25–30 °C in the presence of 0–2.0 % (w/v) NaCl. 16S rRNA gene sequence similarity analysis indicated that strain B2974 was closely related to LMG 25503 at a level of 97.1 %. The major quinone of strain B2974 was ubiquinone Q10. The predominant fatty acids were summed feature 8 (C 7 and/or C ) and C cyclo 8. -Homospermidine was the major polyamine. The genomic DNA G+C content of the strain was 64 mol%. In DNA–DNA hybridization tests, strain B2974 shared 49.32 % DNA–DNA relatedness with the type strain of LMG 25503. Based on the results of phenotypic and chemotaxonomic characteristics, strain B2974 was considered as a novel species of the genus , for which the name sp. nov. is proposed. The type strain is B2974 (=JCM 30308=CGMCC 1.12919).

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2016-11-01
2020-01-23
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