Muriicola jejuensis gen. nov., sp. nov., isolated from seawater

다국어 초록 (Multilingual Abstract)

<P>An aerobic, yellow-orange-pigmented, Gram-staining-negative bacterium, designated strain EM44<SUP>T</SUP>, was isolated from seawater on the eastern coast of Jeju Island, Korea. Growth was observed at 15-35 °C (optimum 25-30 °C), pH 6.5-9.0 (optimum pH 7.0-8.5) and between 1 and 5 % NaCl (w/v) (optimum 2-4 %). Cells of strain EM44<SUP>T</SUP> were non-motile, straight rods and showed catalase and oxidase activities. The G+C content of the genomic DNA was 47.9 mol% and the major respiratory quinone was MK-6. The major fatty acids were iso-C15 : 0 G, iso-C15 : 0, iso-C17 : 0 3-OH and iso-C16 : 0 3-OH. Strain EM44<SUP>T</SUP> contained phosphatidylethanolamine as a major polar phospholipid. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain EM44<SUP>T</SUP> fell within the family <I>Flavobacteriaceae</I> in the phylum <I>Bacteroidetes</I> and was most closely related to members of the genera <I>Eudoraea</I>, <I>Zeaxanthinibacter</I> and <I>Robiginitalea</I> with 92-94.5 % gene sequence similarities. On the basis of chemotaxonomic data and molecular properties, it is clear that strain EM44<SUP>T</SUP> represents a novel genus within the family <I>Flavobacteriaceae,</I> for which the name <I>Muriicola jejuensis</I> gen. nov., sp. nov. is proposed. The type strain of the type species is EM44<SUP>T</SUP> (=KCTC 22299<SUP>T</SUP>=DSM 21206<SUP>T</SUP>).</P>