1887

Abstract

A Gram-stain-negative, strictly aerobic, yellow-pigmented, non-gliding, oval to rod-shaped bacterial strain, designated JB01H24, belonging to the family , was isolated from marine surface sediment collected from the Ross Sea, Antarctica. Strain JB01H24 grew at 4–40 °C (optimum 25–30 °C), pH 7.0–9.0 (optimum 7.5–8.0), and in the presence of 0–8 % NaCl (optimum 3 %, w/v). Phylogenetic analysis based on 16S rRNA gene sequences showed that strain JB01H24 formed an independent linkage within the family and was closely related with the genus . Strain JB01H24 exhibited 16S rRNA gene sequence similarities of 95.3–91.5 % and 94.9–94.0 % to the type strains of the genera and , respectively. The major fatty acids (>5 %) were iso-C, summed feature 3 (C 6 and/or C 7), anteiso-C, iso-C G and summed feature 9 (iso-C 9 and/or 10-methyl C). The major polar lipids were phosphatidylethanolamine, seven unidentified lipids, two unidentified aminolipids and an unidentified aminophospholipid. Strain JB01H24 contained menaquinone-6 as the only ubiquinone. The DNA G+C content was 42.4 mol%. On the basis of phylogenetic, physiological and chemotaxonomic properties, strain JB01H24 is considered to represent a novel species of a new genus within the family , for which the name gen. nov., sp. nov. is proposed. The type strain of is JB01H24 (=GDMCC 1.1229=KCTC 52984).

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2018-01-01
2020-01-18
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