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  • Title: Marinobacter flavimaris sp. nov. and Marinobacter daepoensis sp. nov., slightly halophilic organisms isolated from sea water of the Yellow Sea in Korea.
    Author: Yoon JH, Yeo SH, Kim IG, Oh TK.
    Journal: Int J Syst Evol Microbiol; 2004 Sep; 54(Pt 5):1799-1803. PubMed ID: 15388746.
    Abstract:
    Two Gram-negative, motile, non-spore-forming and slightly halophilic rods (strains SW-145T and SW-156T) were isolated from sea water of the Yellow Sea in Korea. Strains SW-145T and SW-156T grew optimally at 37 and 30-37 degrees C, respectively, and in the presence of 2-6 % (w/v) NaCl. Strains SW-145T and SW-156T were chemotaxonomically characterized as having ubiquinone-9 as the predominant respiratory lipoquinone and C(16 : 0), C(18 : 1)omega9c, C(16 : 1)omega9c and C(12 : 0) 3-OH as the major fatty acids. The DNA G + C contents of strains SW-145T and SW-156T were 58 and 57 mol%, respectively. Phylogenetic analyses based on 16S rRNA gene sequences showed that strains SW-145T and SW-156T fell within the evolutionary radiation enclosed by the genus Marinobacter. The 16S rRNA gene sequences of strains SW-145T and SW-156T were 94.8 % similar. Strains SW-145T and SW-156T exhibited 16S rRNA gene sequence similarity levels of 94.3-98.1 and 95.4-97.7 %, respectively, with respect to the type strains of all Marinobacter species. Levels of DNA-DNA relatedness, together with 16S rRNA gene sequence similarity values, indicated that strains SW-145T and SW-156T are members of two species that are distinct from seven Marinobacter species with validly published names. On the basis of phenotypic properties and phylogenetic and genotypic distinctiveness, strains SW-145T (= KCTC 12185T = DSM 16070T) and SW-156T (= KCTC 12184T = DSM 16072T) should be placed in the genus Marinobacter as the type strains of two distinct novel species, for which the names Marinobacter flavimaris sp. nov. and Marinobacter daepoensis sp. nov. are proposed.
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