Thalassobius maritimus sp. nov., isolated from seawater

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Thalassobius maritimus sp. nov., isolated from seawater
Sooyeon Park; Mi Hwa Lee; Jung-Sook Lee; Tae Kwang Oh; J H Yoon
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 62, no. 1, pp. 8-12
Publication Year
A Gram-stain-negative, aerobic, motile, rod-shaped bacterial strain, GSW-M6T, was isolated from seawater of Geoje island, Korea, and was subjected to a polyphasic taxonomic study. Strain GSW-M6 T grew optimally at pH 7.0-8.0, at 30°C and in the presence of 2% (w/v) NaCl. In the neighbour-joining phylogenetic tree based on 16S rRNA gene sequences, strain GSW-M6 T clustered with Thalassobius aestuarii, Thalassobius gelatinovorus and Thalassobius mediterraneus. Strain GSW-M6 T exhibited 96.2-96.9% 16S rRNA gene sequence similarity to the type strains of these three Thalassobius species. Strain GSW-M6 T contained Q-10 as the predominant ubiquinone and C 18:1ω7c as the major fatty acid. The polar lipid profiles of strain GSW-M6 T and the type strains of the three Thalassobiusspecies were similar, with phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and an unidentified lipid as common major components. The DNA G+C content of strain GSW-M6 T was 57 mol%. The mean level of DNA-DNA relatedness between strain GSW-M6 T and the type strain of Thalassobius gelatinovorus was 17 %. Differential phenotypic properties, together with the phylogenetic and genetic distinctiveness, enabled strain GSW-M6 T to be differentiated from recognized species of the genus Thalassobius. On the basis of the data presented, strain SW-M6 T is considered to represent a novel species of the genus Thalassobius, for which the name Thalassobius maritimus sp. nov. is proposed. The type strain is GSW-M6 T(=KCTC 23347 T=CCUG 60021 T).
Microbiology Soc
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Jeonbuk Branch Institute > Biological Resource Center > 1. Journal Articles
Division of Biomedical Research > Metabolic Regulation Research Center > 1. Journal Articles
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