1887

Abstract

A novel Gram-negative, aerobic, orange-pigmented bacterial strain, designated K7-2, was isolated from seawater of Gangjin Bay, Korea, and subjected to a polyphasic taxonomic study. Strain K7-2 contained ubiquinone-10 (Q-10) as the predominant respiratory lipoquinone and did not produce bacteriochlorophyll . Major fatty acids were C 7 (51.4 %), iso-C 2-OH and/or C 7 (15.0 %) and C 6 (8.8 %). Major polar lipids were phosphatidylethanolamine and phosphatidylcholine. The DNA G+C content was 61.6 mol%. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain K7-2 formed a distinct phylogenetic lineage within the cluster comprising strains. Similarities between the 16S rRNA gene sequences of strain K7-2 and the type strains of species ranged from 95.0 % ( DSM 8509) to 96.8 % ( RE35F/1). On the basis of polyphasic taxonomic data, strain K7-2 (=KCTC 22330=JCM 15420) is classified in a novel species within the genus , for which the name sp. nov. is proposed.

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2010-06-01
2019-10-24
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vol. , part 6, pp. 1413–1417

Scanning electron micrograph of cells of K7-2 . Bar, 1 µm.



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