Marinomonas dokdonensis sp. nov., isolated from sea water

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Marinomonas dokdonensis sp. nov., isolated from sea water
Jung-Hoon Yoon; So Jung Kang; Tae Kwang Oh
Bibliographic Citation
International Journal of Systematic and Evolutionary Microbiology, vol. 55, no. 6, pp. 2303-2307
Publication Year
Two Gram-negative, motile, non-spore-forming, slightly halophilic bacteria (strains DSW10-10T and DSW10-19) were isolated from sea water and subjected to a polyphasic taxonomic study. They grew optimally at 30 °C and in the presence of 2-3 % (w/v) NaCl. Strains DSW10-10T and DSW10-19 were characterized chemotaxonomically as containing Q-8 as the predominant ubiquinone and C18:1ω7c, C16:0 and C16:1ω7c and/or iso-C15:0 2-OH as the major fatty acids. Their DNA G+C contents were 45.3-45.7 mol%. Strains DSW10-10T and DSW10-19 exhibited a 16S rRNA gene sequence similarity value of 100 % and possessed a mean DNA-DNA relatedness level of 85 %. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains DSW10-10T and DSW10-19 fell within the radiation of the cluster encompassed by the genus Marinomonas. Strains DSW10-10T and DSW10-19 had 16S rRNA gene sequence similarity levels of 95.7-97.7 % with respect to the type strains of Marinomonas species with validly published names. Levels of DNA-DNA relatedness were low enough to indicate that the two strains constitute a distinct Marinomonas species. On the basis of phenotypic data and phylogenetic and genetic distinctiveness, strains DSW10-10T (=KCTC 12394T=DSM 17202T) and DSW10-19 were placed in the genus Marinomonas as members of a novel species, Marinomonas dokdonensis sp. nov.
Microbiology Soc
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Division of Biomedical Research > Metabolic Regulation Research Center > 1. Journal Articles
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