1887

Abstract

A Gram-negative, non-motile, non-spore-forming and rod-shaped bacterial strain, DSW-6, was isolated from sea water and subjected to a polyphasic study. Strain DSW-6 grew optimally at 25 °C, in the presence of 2 % (w/v) NaCl and at pH 7·0–8·0. It was characterized chemotaxonomically as having MK-6 as the predominant menaquinone and iso-C, anteiso-C, iso-C 3-OH and C as the major fatty acids (>10 % of total fatty acids). Major polar lipids were phosphatidylethanolamine, unidentified phospholipids and amino-group-containing lipids that are ninhydrin-positive. The DNA G+C content was 36·9 mol%. Phylogenetic analyses based on 16S rRNA gene sequences showed that strain DSW-6 forms an independent line of descent within the family . The 16S rRNA gene sequence of strain DSW-6 exhibited similarity values of less than 94·7 % to the sequences of other members of the family . Strain DSW-6 could be distinguished from other phylogenetically related genera by differences in several phenotypic properties. Therefore, in view of the combined phenotypic and phylogenetic data, it is proposed that strain DSW-6 (=KCTC 12402=DSM 17205) represents a novel genus and species, gen. nov., sp. nov.

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2006-01-01
2020-01-29
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