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Abstract

A Gram-negative-staining, aerobic, non-motile and rod-shaped bacterial strain, S5-5, was isolated from a tidal flat sediment at Saemankum on the west coast of Korea and subjected to a polyphasic taxonomic investigation. Strain S5-5 grew optimally at pH 7.5–8.0, at 30 °C and in the presence of 2 % (w/v) NaCl. It did not produce bacteriochlorophyll . Phylogenetic analyses based on 16S rRNA gene sequences showed that strain S5-5 is phylogenetically closely related to the genus , joining the cluster comprising the two recognized species. The 16S rRNA gene sequence similarity between strain S5-5 and members of the genus was in the range 95.0–96.7 %. Strain S5-5 contained Q-10 as the predominant ubiquinone and C 7 and 11-methyl C 7 as the major fatty acids. The DNA G+C content was 68.2 mol%. Differential phenotypic properties, together with the phylogenetic distinctiveness, demonstrated that strain S5-5 could be differentiated from species. On the basis of the data presented, strain S5-5 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is S5-5 (=KCTC 22708 =CCUG 57755).

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2010-05-01
2020-01-27
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vol. , part 5, pp. 1113 - 1117

Thin-layer chromatograms of polar lipids of sp. nov. S5-5 (a), KCTC 22255 (b) and JCM 10271 (c). AL, Unidentified aminolipid; DPG, diphosphatidylglycerol; L, unidentified lipid; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PL, unidentified phospholipid.



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