<i>Altererythrobacter</i> <i>gangjinensis</i> sp. nov., a marine bacterium isolated from a tidal flat

다국어 초록 (Multilingual Abstract)

<P>A Gram-stain-negative, ochre-pigmented, strictly aerobic bacterium, designated strain KJ7<SUP>T</SUP>, was isolated from a tidal flat of the Gangjin bay in South Korea. Cells were halotolerant, non-motile, catalase- and oxidase-positive rods. Growth of strain KJ7<SUP>T</SUP> was observed at 5–35 °C (optimum, 25 °C), at pH 6.0–9.5 (optimum, pH 6.5–7.0) and in the presence of 0–9 % (w/v) NaCl (optimum, 2 %). The major cellular fatty acids were C<SUB>18 : 1</SUB>ω7<I>c</I>, C<SUB>17 : 1</SUB>ω6<I>c</I>, summed feature 3 (comprising C<SUB>16 : 1</SUB>ω7<I>c</I> and/or C<SUB>16 : 1</SUB>ω6<I>c</I>) and C<SUB>16 : 0</SUB>. The polar lipid pattern indicated the presence of phosphatidylcholine, phosphatidylethanolamine, phosphatidylglycerol, diphosphatidylglycerol, a sphingoglycolipid, an unidentified phospholipid and two unidentified lipids. The G+C content of the genomic DNA was 60.2±0.9 mol% and the predominant respiratory quinone was Q-10. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain KJ7<SUP>T</SUP> formed a phyletic lineage distinct from other members of the genus <I>Altererythrobacter</I> and was most closely related to <I>Altererythrobacter luteolus</I> SW-109<SUP>T</SUP> and <I>Altererythrobacter namhicola</I> KYW48<SUP>T</SUP> (95.6 and 95.0 % 16S rRNA gene sequence similarity, respectively). On the basis of phenotypic, chemotaxonomic and molecular features, strain KJ7<SUP>T</SUP> represents a novel species of the genus <I>Altererythrobacter</I>, for which the name <I>Altererythrobacter</I> <I>gangjinensis</I> sp. nov. is proposed. The type strain is KJ7<SUP>T</SUP> ( = KACC 16190<SUP>T</SUP> = JCM 17802<SUP>T</SUP>).</P>