RRC ID 2576
著者 Nogi Y, Hosoya S, Kato C, Horikoshi K.
タイトル Colwellia piezophila sp. nov., a novel piezophilic species from deep-sea sediments of the Japan Trench.
ジャーナル Int J Syst Evol Microbiol
Abstract Two strains of obligately piezophilic bacteria were isolated from sediment collected from the bottom surface of a small canyon on the seaward slope of the Japan Trench at a depth of 6278 m. The isolated strains, Y223GT and Y251E, are closely affiliated with members of the genus Colwellia on the basis of 16S rRNA gene sequence analysis. The G + C contents of both strains were about 39 mol%. DNA-DNA hybridization values between these strains and Colwellia reference strains were significantly lower than those accepted as the phylogenetic definition of a species. The novel strains are Gram-negative, polarly flagellated and facultatively anaerobic. The optimal pressure for growth was 60 MPa at both 4 and 10 degrees C; the most rapid growth rate was observed at 10 degrees C and 60 MPa. No growth occurred at 15 degrees C under any pressure studied. The major isoprenoid quinone is Q-8. The predominant cellular fatty acids are C16 : 0 and C16 : 1. Based on the taxonomic differences observed, the isolated strains appear to represent a novel obligately piezophilic Colwellia species. The name Colwellia piezophila sp. nov. (type strain Y223GT = JCM 11831T = ATCC BAA-637T) is proposed.
巻・号 54(Pt 5)
ページ 1627-1631
公開日 2004-9-1
DOI 10.1099/ijs.0.03049-0
PMID 15388720
MeSH Anaerobiosis Bacterial Typing Techniques Base Composition DNA, Bacterial / chemistry DNA, Bacterial / isolation & purification DNA, Ribosomal / chemistry DNA, Ribosomal / isolation & purification Fatty Acids / analysis Flagella Gammaproteobacteria / classification* Gammaproteobacteria / cytology Gammaproteobacteria / isolation & purification* Gammaproteobacteria / physiology Genes, rRNA Geologic Sediments / microbiology* Hydrostatic Pressure Japan Molecular Sequence Data Nucleic Acid Hybridization Phylogeny Quinones / analysis RNA, Bacterial / genetics RNA, Ribosomal, 16S / genetics Sequence Analysis, DNA Temperature Water Microbiology
IF 2.415
引用数 69
WOS 分野 MICROBIOLOGY
リソース情報
病原微生物 JCM 11831? JCM 10085? JCM 10249? JCM 10084? JCM 11054?