1887

Abstract

A lactic acid bacterium, strain DCY50, isolated from the traditional Korean food kimchi, was studied to determine its taxonomic position. The strain was Gram-stain-positive, catalase-negative, facultatively anaerobic, rod-shaped and motile. The genomic DNA GC content was 49 mol% and the peptidoglycan structure was of the A4α (–Lys–-Asp) type. Chemotaxonomic markers of the strain were consistent with its classification in the genus . Comparisons of 16S rRNA and gene sequences showed that strain DCY50 was most closely related to the type strains of (98.4 and 91.6 % similarity, respectively, for the 16S rRNA and genes), (98.0 and 91.2 %), (97.6 and 93.3 %) and (97.4 and 90.5 %). DNA–DNA relatedness of strain DCY50 to these type strains was below 36 %. According to the genotypic and phenotypic data, strain DCY50 could be differentiated from all known species and should be classified in a novel species, for which the name sp. nov. is proposed; the type strain is DCY50 ( = KCTC 13530  = JCM 16448).

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2011-04-01
2019-10-20
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Transmission electron micrographs of cells of sp. nov. DCY50 . Bars, 1 µm.

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Scanning electron micrographs of cells of DCY50 . Bars, 2 µm.

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Maximum-likelihood tree, based on 16S rRNA gene sequences, showing the phylogenetic relationships of strain DCY50 and other members of genus . [PDF](42 KB)

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