PROTEOBACTERIA >> Gamma >> Colwellia >> Colwellia piezophila
COLWELLIA PIEZOPHILA
| Class: | Gamma Proteobacteria |
| Genus: | Colwellia |
| Species: | Colwellia piezophila |
| Description: | Cells are Gram-negative rods, 2·0–4·0×0·8–1·0 μm, motile by means of a single unsheathed polar flagellum. Halophilic, psychrophilic and piezophilic. Optimal growth occurs at an NaCl concentration of about 3 %. No growth occurs in the absence of NaCl. The optimal temperature and pressure for growth are 10 °C and 60 MPa, respectively. No growth occurs at atmospheric pressure and 2–15 °C or at 15 °C under any pressure. Facultatively anaerobic chemo-organotroph, having both respiratory and fermentative types of metabolism. Catalase and cytochrome oxidase test results are positive, gelatin is hydrolysed, nitrate is reduced to nitrite, but nitrite is not reduced. |
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| Source: | Isolated from the deepest cold-seep environment in the Japan Trench |
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| Genbank: | AB094412.1(16s rRNA) [Genome] [Nucleotide] |
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| Reference: | NOGI (Y.), HOSOYA (S.), KATO (C.) and HORIKOSHI (K.): Colwellia piezophila sp. nov., a novel piezophilic species from deep-sea sediments of the Japan Trench. Int. J. Syst. Evol. Microbiol., 2004, 54, 1627-1631. |
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