1887

Abstract

A Gram-staining-negative, aerobic, non-motile and yellow-pigmented bacterium, designated strain SM1504, was isolated from Arctic seawater. It hydrolysed aesculin and gelatin but did not reduce nitrate to nitrite. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain SM1504 constituted a distinct phylogenetic line within the family and was closely related to species of the genera , , and , with respect to which low sequence similarities between 88.9 and 91.6 % were observed. The major fatty acids of strain SM1504 were summed feature 3 (comprising Cω7 and/or iso-C 2-OH) and iso-C. The predominant polar lipids of strain SM1504 were phosphatidylethanolamine and one unidentified lipid. The only respiratory quinone detected in strain SM1504 was MK7. The DNA G+C content of strain SM1504 was 40.8 mol%. On the basis of the phylogenetic, chemotaxonomic and phenotypic characterization in this study, strain SM1504 is considered to represent a novel species in a new genus of the family , for which the name gen. nov., sp. nov. is proposed. The type strain is SM1504 (=KCTC 42716=CCTCC AB 2015348).

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2017-03-01
2019-12-14
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