title: Clostridium jejuense sp. nov., isolated from soil.
abstract: A strictly anaerobic, mesophilic, endospore-forming bacterium, designated strain HY-35-12T, was isolated from a soil sample in Jeju, Korea. Cells of this isolate were Gram-positive, motile rods that formed oval to spherical terminal spores. Strain HY-35-12T grew optimally at 30 degrees C, pH 7.0 and 0-0.5 % (w/v) NaCl. The isolate produced pyruvate, lactate, acetate, formate and hydrogen as fermentation end products from glucose. The G + C content of DNA of the isolate was 41 mol%. Phylogenetic analysis based on 16S rRNA gene sequences revealed that the organism formed a monophyletic clade with Clostridium xylanovorans and Clostridium aminovalericum in cluster XIVa of the genus Clostridium. The closest phylogenetic neighbour was C. xylanovorans, with 96.65 % 16S rRNA gene sequence similarity. Several physiological and chemotaxonomic properties were identified that enable strain HY-35-12T to be distinguished from phylogenetically related clostridia. On the basis of polyphasic characteristics, it is proposed that strain HY-35-12T (= IMSNU 40003T = KCTC 5026T = DSM 15929T) represents a novel species, Clostridium jejuense sp. nov.
authors.affiliation: School of Biological Sciences, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-742, Korea.
authors.forename: Hyunyoung
authors.initials: H
authors.lastname: Jeong
authors.affiliation: School of Biological Sciences, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-742, Korea.
authors.forename: Hana
authors.initials: H
authors.lastname: Yi
authors.affiliation: Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Sekiguchi
authors.affiliation: Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
authors.forename: Mizuho
authors.initials: M
authors.lastname: Muramatsu
authors.affiliation: Institute for Biological Resources and Functions, National Institute of Advanced Industrial Science and Technology (AIST), Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Kamagata
authors.affiliation: School of Biological Sciences, Seoul National University, 56-1 Shillim-dong, Kwanak-gu, Seoul 151-742, Korea.
authors.forename: Jongsik
authors.initials: J
authors.lastname: Chun
mesh_terms: D019342:Acetic Acid / Q000378:metabolism; D000693:Anaerobiosis; D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001482:Base Composition; D003013:Clostridium / Q000145:classification* / Q000166:cytology / Q000302:isolation & purification* / Q000502:physiology; D004269:DNA, Bacterial / Q000737:chemistry / Q000302:isolation & purification; D004275:DNA, Ribosomal / Q000737:chemistry / Q000302:isolation & purification; D005285:Fermentation; D005561:Formates / Q000378:metabolism; D020459:Genes, rRNA; D005947:Glucose / Q000378:metabolism; D006859:Hydrogen / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007723:Korea; D019344:Lactic Acid / Q000378:metabolism; D008969:Molecular Sequence Data; D009068:Movement; D010802:Phylogeny; D019289:Pyruvic Acid / Q000378:metabolism; D012329:RNA, Bacterial / Q000235:genetics; D012336:RNA, Ribosomal, 16S / Q000235:genetics; D017422:Sequence Analysis, DNA; D012965:Sodium Chloride / Q000494:pharmacology; D012988:Soil Microbiology; D013171:Spores, Bacterial / Q000166:cytology; D013696:Temperature
chemical_list: D000900:Anti-Bacterial Agents; D004269:DNA, Bacterial; D004275:DNA, Ribosomal; D005561:Formates; D012329:RNA, Bacterial; D012336:RNA, Ribosomal, 16S; C030544:formic acid; D019344:Lactic Acid; D012965:Sodium Chloride; D006859:Hydrogen; D019289:Pyruvic Acid; D005947:Glucose; D019342:Acetic Acid