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Abstract

A Gram-negative, psychrotolerant, chemoheterotrophic, aerobic, non-gliding, non-motile, yellow-pigmented bacterium, designated IMCC3228, was isolated from coastal seawater of the Antarctic. On the basis of 16S rRNA gene sequence comparisons, the strain was most closely related to the genera (95.3–96.1 %) and (94.2–95.9 %) in the family . Phylogenetic trees generated using several treeing algorithms based on 16S rRNA gene sequences showed that this Antarctic marine isolate formed a distinct phyletic line within the genus . The DNA G+C content of the strain was 35.0 mol% and the major respiratory quinone was MK-6. Several phenotypic and chemotaxonomic characteristics, including temperature and NaCl optima for growth, oxidase activity and the proportions of major cellular fatty acids, served to differentiate the strain from the recognized species of the genus . Therefore strain IMCC3228 represents a novel species of the genus , for which the name sp. nov. is proposed. The type strain is IMCC3228 (=KCCM 42689=NBRC 103143).

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2007-12-01
2019-10-16
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vol. , part 12, pp. 2917 - 2921

Transmission electron micrographs of negatively stained cells of strain IMCC3228 . [ PDF] (80 KB)



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