1887

Abstract

A Gram-stain-negative, strictly aerobic, non-motile and ovoid- or rod-shaped bacterial strain, JBTF-M29, was isolated from tidal flat sediment sampled from the Yellow Sea, Republic of Korea. The neighbour-joining phylogenetic tree based on 16S rRNA gene sequences revealed that strain JBTF-M29 clustered with the type strains of species and this cluster joined the clade comprising and species. Strain JBTF-M29 exhibited 16S rRNA gene sequence similarity values of 96.2–96.6 % to the type strains of three species, of 96.4 % to the type strain of and of 93.9–94.7 % to the type strains of three species. In the UPGMA dendrogram based on the ANI values of genomic sequences, strain JBTF-M29 formed an evolutionary lineage independent of the genera and and some other taxa. Strain JBTF-M29 contained Q-10 as the predominant ubiquinone and C 7 and C as the major fatty acids. The major polar lipids of strain JBTF-M29 were phosphatidylglycerol and one unidentified aminolipid. The DNA G+C content of strain JBTF-M29 was 64.5 mol%. The differences in fatty acid and polar lipid profiles and other differential phenotypic properties including nitrate reduction and casein hydrolysis made it reasonable to distinguish strain JBTF-M29 from the genera , and . Therefore, on the basis of the polyphasic taxonomic data presented here, strain JBTF-M29 constitutes a new genus and species within the class , for which the name gen. nov., sp. nov. is proposed. The type strain is JBTF-M29 (=KACC 19867=NBRC 113548).

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2019-10-01
2019-10-21
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