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Abstract
A Gram-stain-negative, flagellated, aerobic and rod-shaped or ovoid bacterial strain, designated HJTF-7T, was isolated from a tidal flat on the South Sea of South Korea, and its taxonomic position was investigated using a polyphasic approach. Strain HJTF-7T grew optimally at 25 °C, at pH 7.0–8.0 and in the presence of 2.0 % (w/v) NaCl. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees, based on 16S rRNA gene sequences, showed that strain HJTF-7T joined the cluster comprising the type strains of species of the genera Spongiibacter and Zhongshania . Strain HJTF-7T exhibited 16S rRNA gene sequence similarities of 90.4–92.5 % to the type strains of species of the genera Spongiibacter and Zhongshania and of less than 91.5 % to the type strains of other recognized species. Strain HJTF-7T contained Q-8 as the predominant ubiquinone. The major fatty acids were iso-C17 : 1ω9c, iso-C15 : 0, iso-C17 : 0, iso-C11 : 0 3-OH and C17 : 1ω8c and the major polar lipids were phosphatidylethanolamine and phosphatidylglycerol. The fatty acid and polar lipid profiles of strain HJTF-7T were distinct from those of members of the genera Spongiibacter and Zhongshania . The DNA G+C content of strain HJTF-7T was 55.9 mol%. The phylogenetic data and differential chemotaxonomic and other phenotypic properties revealed that strain HJTF-7T represents a novel genus and species within the class Gammaproteobacteria , for which the name Litorivivens lipolytica gen. nov., sp. nov. is proposed. The type strain of Litorivivens lipolytica is HJTF-7T ( = KCTC 42157T = CECT 8654T).
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Funding
- Ministry of Science, ICT & Future Planning (MSIP) of the Republic of Korea (Award 2012R1A2A2A01047369)