RRC ID 5065
著者 Nogi Y, Hosoya S, Kato C, Horikoshi K.
タイトル Psychromonas hadalis sp. nov., a novel piezophilic bacterium isolated from the bottom of the Japan Trench.
ジャーナル Int J Syst Evol Microbiol
Abstract An obligately piezophilic bacterium was isolated from sediment collected from the bottom of the Japan Trench at a depth of 7542 m. The isolated strain, designated K41G(T), was closely affiliated with members of the genus Psychromonas on the basis of 16S rRNA gene sequence analysis. Levels of DNA-DNA relatedness between strain K41G(T) and Psychromonas reference strains were significantly lower than that accepted as the phylogenetic definition of a species. The optimal temperature and pressure for growth of strain K41G(T) were 6 degrees C and 60 MPa, respectively. The DNA G+C content was 39.1 mol%. Whole-cell fatty acids consisted of significant amounts of unsaturated fatty acids C(16 : 1) (37 %) and C(14 : 1) (17 %), saturated fatty acid C(16 : 0) (31 %) and polyunsaturated fatty acid C(22 : 6) (8 %). Based on the taxonomic differences observed, strain K41G(T) is considered to represent a novel obligately piezophilic Psychromonas species. The name Psychromonas hadalis (type strain, K41G(T)=JCM 11830(T)=ATCC BAA-638(T)) is proposed. This is the second species of obligately piezophilic bacteria to be proposed in the genus Psychromonas.
巻・号 57(Pt 6)
ページ 1360-1364
公開日 2007-6-1
DOI 10.1099/ijs.0.64933-0
PMID 17551059
MeSH Bacterial Typing Techniques Base Composition DNA, Bacterial / chemistry DNA, Bacterial / genetics DNA, Ribosomal / chemistry DNA, Ribosomal / genetics Fatty Acids / analysis Gammaproteobacteria / classification* Gammaproteobacteria / genetics Gammaproteobacteria / isolation & purification* Gammaproteobacteria / physiology Genes, rRNA Geologic Sediments / microbiology* Hydrostatic Pressure Japan Molecular Sequence Data Nucleic Acid Hybridization Phylogeny RNA, Bacterial / genetics RNA, Ribosomal, 16S / genetics Seawater / microbiology* Sequence Analysis, DNA Sequence Homology, Nucleic Acid Temperature
IF 2.415
引用数 27
WOS 分野 MICROBIOLOGY
リソース情報
一般微生物 JCM11830