1887

Abstract

A Gram-negative, chemoheterotrophic, facultatively anaerobic, slightly halophilic, oval-shaped marine bacterium, designated HTCC2601, was isolated from the western Sargasso Sea by high-throughput culturing involving dilution to extinction. Although the 16S rRNA gene sequence similarity between the isolate and was 96·5 %, phylogenetic analyses using different treeing algorithms clearly indicated that the strain forms a distinct lineage within a clade containing the recently classified genera and in the order of the . The DNA–DNA relatedness between strain HTCC2601 and was 26·3 %. Strain HTCC2601 utilized a wide range of carbohydrates, including hexose monomers, sugar alcohols, organic acids and amino acids, as sole carbon sources. The DNA G+C content of strain HTCC2601 was 65·4 mol%, and the predominant constituents of the cellular fatty acids were 18 : 17 (79·7 %) and 11-methyl 18 : 17 (7·5 %). The strain differed from members of the closely related genera and in its morphological, biochemical and ecological characteristics. On the basis of the taxonomic data obtained in this study, a novel genus and species, gen. nov., sp. nov., is proposed; HTCC2601 (=KCTC 12554=JCM 13377) is the type strain of .

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2006-04-01
2019-12-12
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