1887

Abstract

A Gram-negative, non-spore-forming, rod-shaped bacterial strain, RL-2, was isolated from seawater of the East Sea in Korea and was subjected to a polyphasic taxonomic study. Strain RL-2 grew optimally at pH 7.5–8.0, at 20 °C and in the absence of NaCl. Phylogenetic trees based on 16S rRNA gene sequence analysis showed that strain RL-2 forms a cluster with IMCC1704 and various uncultured and unidentified gammaproteobacteria. Strain RL-2 exhibited 16S rRNA gene sequence similarity values of 96.1 % to IMCC1704 and 93.7–99.7 % to the uncultured bacterial clones belonging to the cluster and an unidentified gammaproteobacterium. The fatty acid profile of strain RL-2 was similar to that of IMCC1704, but the predominant ubiquinone type (Q-11) of strain RL-2 was different from that (Q-8) of IMCC1704. The DNA G+C content of strain RL-2 was 61.3 mol%. On the basis of phylogenetic, chemotaxonomic and phenotypic data, strain RL-2 is considered to represent a novel species of a new genus in the family , for which the name gen. nov., sp. nov. is proposed. The type strain of is RL-2 ( = KCTC 23145  = CCUG 59307).

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2011-06-01
2019-10-18
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