1887

Abstract

A novel Gram-stain-negative, facultatively anaerobic, catalase- and oxidase-positive, non-motile and pink-pigmented bacterium, designated G22, was isolated from Gahai, a saltwater lake in Qinghai province, China. Optimal growth occurred at 33–35 °C, pH 7.0–7.5, and in the presence of 2–4 % (w/v) NaCl. The DNA G+C content was 40.0 mol%. The major polar lipids were phosphatidylethanolamine and three unknown lipids. The predominant cellular fatty acids were iso-C, anteiso-C, iso-C 3-OH and iso-C 3-OH, and MK-7 was the main respiratory quinone. Phylogenetic analysis based on 16S rRNA gene sequences revealed that strain G22 fell within the class . Its closest phylogenetic neighbour was the recently described species , the sole member of the family , with merely 90.04 % sequence similarity. On the basis of phenotypic, chemotaxonomic and phylogenetic evidence observed, a novel species in a new genus, gen. nov., sp. nov., is proposed within the family . The type strain is G22 ( = CICC 10587 = DSM 27063).

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2014-10-01
2019-11-20
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