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Abstract

A marine bacterium, designated IMCC3223, was isolated from Antarctic coastal seawater and subjected to a polyphasic taxonomic investigation. Cells of the strain were Gram-negative, short to elongated rods that were orange-coloured but negative for flexirubin-type pigments, obligately aerobic, chemoheterotrophic and devoid of gliding or flagellar motility. On the basis of 16S rRNA gene sequence comparisons, the strain was closely related to members of the genus (86.3–93.1 %) of the family ‘’ in the phylum ; the most closely related species was (93.1 % similarity to the type strain). The DNA G+C content of the strain was 50.3 mol% and the major respiratory quinone was MK-7. The predominant cellular fatty acids were C 7/iso-C 2-OH (39.4 %), iso-C (15.9 %), C 7 (10.5 %) and C 6 (8.9 %). 16S rRNA gene sequence analyses and the phenotypic and chemotaxonomic tests allowed the differentiation of strain IMCC3223 from all recognized species of the genus . Therefore, strain IMCC3223 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is IMCC3223 (=KCCM 42688 =NBRC 103142).

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2009-01-01
2019-10-14
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Transmission electron micrograph of cells of strain IMCC3223 . Bar, 2.0 µm.

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Cellular fatty acid compositions of strain IMCC3223 and type strains of species of the genus . [PDF](55 KB)

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