Oceanithermus desulfurans sp. nov., a novel thermophilic, sulfur-reducing bacterium isolated from a sulfide chimney in Suiyo Seamount
| Autor: | Akihiko Maruyama, K. Nakamura, Koji Mori, Yowsuke Higashi, Takeshi Kakegawa, Satoshi Hanada |
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| Rok vydání: | 2004 |
| Předmět: |
DNA
Bacterial Hot Temperature Molecular Sequence Data Sulfur metabolism chemistry.chemical_element Biology Sulfides Microbiology DNA Ribosomal RNA Ribosomal 16S Gram-Negative Bacteria Microaerophile Seawater Ecology Evolution Behavior and Systematics Nitrites Phylogeny Base Composition Nitrates Pacific Ocean Strain (chemistry) Thermophile Fatty Acids Temperature Nucleic Acid Hybridization Genes rRNA General Medicine Sequence Analysis DNA Ribosomal RNA 16S ribosomal RNA biology.organism_classification Sulfur Aerobiosis Bacterial Typing Techniques Culture Media Oxygen RNA Bacterial chemistry Peptones Water Microbiology Oxidation-Reduction Bacteria |
| Zdroj: | International journal of systematic and evolutionary microbiology. 54(Pt 5) |
| ISSN: | 1466-5026 |
| Popis: | A novel thermophilic, microaerophilic, sulfur-reducing bacterium designated strain St55BTwas isolated from a sulfide chimney in the hydrothermal field of Suiyo Seamount (Izu-Bonin Arc, Western Pacific). Cells of the isolate were rod-shaped and tended to form a chain-link circular structure (a rotund body) at exponential phase under good growth conditions. The isolate was a chemoheterotroph requiring yeast extract for growth. Although strain St55BTused oxygen as an electron acceptor, it could not form colonies in an oxygen concentration of more than 5 % (v/v). The isolate also used nitrate, nitrite or elemental sulfur in the absence of oxygen. A phylogenetic analysis based on the 16S rRNA gene sequence revealed that the isolate was closely related toOceanithermus profundus, belonging to the phylum ‘Deinococcus–Thermus’ (sequence similarity 99·5 %). However, strain St55BTdiffered fromO. profundusin terms of usage of electron donors, cellular fatty acid profile and DNA G+C content. In addition, a DNA–DNA hybridization test indicated low relatedness between the isolate andO. profundus. For the reasons given above, the nameOceanithermus desulfuranssp. nov. is proposed for strain St55BT(=NBRC 100063T=DSM 15757T). |
| Databáze: | OpenAIRE |
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