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Jannaschia donghaensis sp. nov., isolated from seawater of the East Sea, Korea

Korea Research Institute of Bioscience and Biotechnology (KRIBB), PO Box 115, Yusong, Taejon, Korea

Correspondence
Jung-Hoon Yoon
jhyoon{at}kribb.re.kr

A Gram-negative, non-motile and rod-, oval- or coccoid-shaped strain, DSW-17^T, was isolated from seawater of the East Sea, Korea, and subjected to a polyphasic taxonomic study. Strain DSW-17^T grew optimally at pH 7.0–8.0 and 25 °C. It contained Q-10 as the predominant ubiquinone and C_{18 : 1}7c as the major fatty acid. Major polar lipids were phosphatidylcholine, phosphatidylglycerol, phosphatidylethanolamine and an unidentified glycolipid. The DNA G+C content was 65.2 mol%. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain DSW-17^T was phylogenetically most closely affiliated to the genus Jannaschia. Strain DSW-17^T exhibited 16S rRNA gene sequence similarity values of 96.5 % with the type strains of three recognized species of the genus Jannaschia. DNA–DNA relatedness data and differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain DSW-17^T is distinguishable from the recognized species of the genus Jannaschia. On the basis of phenotypic, phylogenetic and genetic data, strain DSW-17^T was classified in the genus Jannaschia as a member of a novel species, for which the name Jannaschia donghaensis sp. nov. is proposed. The type strain is DSW-17^T (=KCTC 12862^T=JCM 14563^T).

The GenBank/EMBL/DDBJ accession number for the 16S rRNA gene sequence of strain DSW-17^T is EF202612.

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