1887

Abstract

A novel Gram-stain-negative, moderately halophilic and aerobic bacterium, designated strain SDRB-Phe2, was isolated from coastal sediment of the yellow sea in Sindu-ri, Republic of Korea. Cells were oxidase-positive, catalase-positive, rod-shaped and surrounded by a capsule with gliding motility. Colonies were yellow-coloured, circular, pulvinate with entire margins. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain SDRB-Phe2 formed a distinct lineage within the genus Maribacter of the family Flavobacteriaceae . Stain SDRB-Phe2 exhibited 16S rRNA gene sequence similarity values of 97.1–98.9 % to the type strains of M aribacter stanieri, M aribacter spongiicola, M aribacter forsetii, M aribacter dokdonensis, M aribacter aquivivus, M aribacter caenipelagi, M aribacter litorisediminis, M aribacter sedimenticola, M aribacter ulvicola, M aribacter confluentis and M aribacter orientalis, and of 94.8–96.7 % to the type strains of the other species of the genus Maribacter . Strain SDRB-Phe2 contained MK-6 as the predominant respiratory quinone and iso-C15 : 1 G, iso-C15 : 0 and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c) as the major fatty acids. The polar lipids of strain SDRB-Phe2 were phosphatidylethanolamine, one unidentified amino lipid and two unidentified lipids. The DNA G+C content was 36.2 mol%. DNA–DNA relatedness values of strain SDRB-Phe2 to the type strains of the 11 phylogenetically related species of the genus Maribacter were 21.9–38.6 %. On the basis of the phenotypic features, phylogenetic and DNA–DNA hybridization analyses presented here, strain SDRB-Phe2 (=JCM 32373=KCTC 62273=DSM 106042) represents a novel species of the genus Maribacter , for which the name Maribacter litoralis sp. nov. is proposed.

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2018-09-17
2019-10-15
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