1887

Abstract

A Gram-stain-negative, aerobic, motile, ovoid bacterial strain, designated HDW-19, was isolated from seawater of the west coast of Korea and subjected to a polyphasic taxonomic study. Strain HDW-19 grew optimally at pH 7.0–8.0, at 30 °C and in the presence of 2–3 % (w/v) NaCl. Bacteriochlorophyll was not produced by strain HDW-19. Neighbour-joining, maximum-likelihood and maximum-parsimony phylogenetic trees based on 16S rRNA gene sequences showed that strain HDW-19 clustered with IAM 12616, with which it shared 96.4 % similarity. A neighbour-joining phylogenetic tree based on gene sequences showed that strain HDW-19 also clustered with the type strain of , sharing 83.0 % similarity. Strain HDW-19 contained Q-10 as the predominant ubiquinone and Cω7 as the major fatty acid. The major polar lipids were phosphatidylcholine, phosphatidylglycerol, three unidentified aminophospholipids and two unidentified aminolipids. The DNA G+C content of strain HDW-19 was 60.9 mol%. Differential phenotypic properties, together with phylogenetic distinctiveness, showed that strain HDW-19 can be differentiated from . On this basis, strain HDW-19 is considered to represent a novel species of the genus , for which the name sp. nov. is proposed. The type strain is HDW-19 ( = KCTC 23043  = CCUG 58879).

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2012-01-01
2020-01-27
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