1887

Abstract

A Gram-negative, non-motile and rod-, oval- or coccoid-shaped bacterial strain, SD-15, was isolated from a tidal flat of the Yellow Sea, Korea. The novel strain, which was phylogenetically closely related to the genera , and was studied using a polyphasic taxonomic approach. Strain SD-15 grew optimally at pH 7.0–8.0 and 30 °C in the presence of 2 % (w/v) NaCl. It contained Q-10 as the predominant ubiquinone and C 7 and 11-methyl C 7 as the major fatty acids. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and an unidentified lipid. The DNA G+C content was 63.4 mol%. Strain SD-15 exhibited the highest 16S rRNA gene sequence similarity values (95.1–96.4 %) to the type strains of species of the genus , MB2 and ATCC 51440. Strain SD-15 could be differentiated from members of the genera , and by differences in the contents of some fatty acids, by the absence of aminolipid and by differences in some phenotypic properties. On the basis of phenotypic, chemotaxonomic and phylogenetic data, strain SD-15 represents a new genus and novel species, for which the name gen. nov., sp. nov. is proposed. The type strain of the type species is SD-15 (=KCTC 22175=CCUG 55328).

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2009-11-01
2020-01-25
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