title: Lactobacillus koreensis sp. nov., isolated from the traditional Korean food kimchi.
abstract: A lactic acid bacterium, strain DCY50(T), 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 G+C content was 49 mol% and the peptidoglycan structure was of the A4α (l-Lys-d-Asp) type. Chemotaxonomic markers of the strain were consistent with its classification in the genus Lactobacillus. Comparisons of 16S rRNA and rpoA gene sequences showed that strain DCY50(T) was most closely related to the type strains of Lactobacillus parabrevis (98.4 and 91.6 % similarity, respectively, for the 16S rRNA and rpoA genes), L. hammesii (98.0 and 91.2 %), L. brevis (97.6 and 93.3 %) and L. senmaizukei (97.4 and 90.5 %). DNA-DNA relatedness of strain DCY50(T) to these type strains was below 36 %. According to the genotypic and phenotypic data, strain DCY50(T) could be differentiated from all known Lactobacillus species and should be classified in a novel species, for which the name Lactobacillus koreensis sp. nov. is proposed; the type strain is DCY50(T) ( = KCTC 13530(T)  = JCM 16448(T)).
authors.affiliation: Korean Ginseng Center and Ginseng Genetic Resource Bank, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 449-701, Republic of Korea.
authors.forename: Thi Phuong Nam
authors.initials: TPN
authors.lastname: Bui
authors.affiliation: Korean Ginseng Center and Ginseng Genetic Resource Bank, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 449-701, Republic of Korea.
authors.forename: Yeon-Ju
authors.initials: YJ
authors.lastname: Kim
authors.affiliation: Korean Ginseng Center and Ginseng Genetic Resource Bank, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 449-701, Republic of Korea.
authors.forename: Jun-Gyo
authors.initials: JG
authors.lastname: In
authors.affiliation: Korean Ginseng Center and Ginseng Genetic Resource Bank, Kyung Hee University, 1 Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do 449-701, Republic of Korea.
authors.forename: Deok-Chun
authors.initials: DC
authors.lastname: Yang
mesh_terms: D000332:Aerobiosis; D001482:Base Composition; D016000:Cluster Analysis; D004269:DNA, Bacterial / Q000737:chemistry / Q000235:genetics; D004275:DNA, Ribosomal / Q000737:chemistry / Q000235:genetics; D012321:DNA-Directed RNA Polymerases / Q000235:genetics; D005516:Food Microbiology; D007723:Korea; D007778:Lactobacillus / Q000145:classification* / Q000235:genetics / Q000302:isolation & purification* / Q000502:physiology; D008124:Locomotion; D008969:Molecular Sequence Data; D009693:Nucleic Acid Hybridization; D010457:Peptidoglycan / Q000737:chemistry; D010802:Phylogeny; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA
chemical_list: D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D010457:Peptidoglycan; D012336:RNA, Ribosomal, 16S; D012321:DNA-Directed RNA Polymerases; C113275:RNA polymerase alpha subunit