Oceanobacillus iheyensis gen. nov., sp. nov., a deep-sea extremely halotolerant and alkaliphilic species isolated from a depth of 1050 m on the Iheya Ridge.
It is proposed that the isolate isolated previously from deep-sea sediment collected at a depth of 1050 m on the Iheya Ridge is a member of a new species in a new genus, for which the name Oceanobacillus iheyensis is proposed.
Photobacterium profundum sp. nov., a new, moderately barophilic bacterial species isolated from a deep-sea sediment
The temperature and pressure ranges for growth, cellular fatty acid composition, and assorted physiological and biochemical characteristics indicate that these strains differ from other Photobacterium species.
Extremely Barophilic Bacteria Isolated from the Mariana Trench, Challenger Deep, at a Depth of 11,000 Meters
- Chiaki Kato, Lina Li, Y. Nogi, Yuka Nakamura, J. Tamaoka, K. Horikoshi
- BiologyApplied and Environmental Microbiology
- 1 April 1998
Two strains of obligately barophilic bacteria were isolated from a sample of the world’s deepest sediment, obtained by the unmanned deep-sea submersible Kaiko in the Mariana Trench, Challenger Deep, and appears to be closely related to the genus Moritella.
Purification and Characterization of a Novel α-Agarase from a Thalassomonas sp.
- Y. Ohta, Y. Hatada, M. Miyazaki, Y. Nogi, S. Ito, K. Horikoshi
- BiologyCurrent Microbiology
- 15 March 2005
An agar-degrading Thalassomonas bacterium, strain JAMB-A33, was isolated from the sediment off Noma Point, Japan, and a novel α-agarase from the isolate was purified to homogeneity from cultures containing agar as a carbon source, suggesting that it is a monomer.
Enzymatic properties and nucleotide and amino acid sequences of a thermostable β-agarase from a novel species of deep-sea Microbulbifer
- Y. Ohta, Y. Hatada, K. Horikoshi
- BiologyApplied Microbiology and Biotechnology
- 20 February 2004
The pattern of agarose hydrolysis showed that the enzyme was an endo-type β-agarase, and the final main product was neoagarotetraose, not inhibited by NaCl, EDTA, and various surfactants at high concentrations.
Cloning, expression, and characterization of a glycoside hydrolase family 86 β-agarase from a deep-sea Microbulbifer-like isolate
- Y. Ohta, Y. Hatada, Y. Nogi, Zhijun Li, S. Ito, K. Horikoshi
- BiologyApplied Microbiology and Biotechnology
- 15 October 2004
The gene for a novel β-agarase from a deep-sea Microbulbifer-like isolate was cloned and sequenced and was the first glycoside hydrolase family 86 enzyme to be homogeneously purified and characterized.
Neptunomonas japonica sp. nov., an Osedax japonicus symbiont-like bacterium isolated from sediment adjacent to sperm whale carcasses off Kagoshima, Japan.
- M. Miyazaki, Y. Nogi, Y. Fujiwara, M. Kawato, K. Kubokawa, K. Horikoshi
- BiologyInternational Journal of Systematic and…
- 1 April 2008
Phylogenetic analysis based on 16S rRNA gene sequences of the novel isolates indicated a relationship to a symbiotic bacterial clone of the polychaete Osedax japonicus and these bacteria appear to represent a novel species of the genus Neptunomonas.
Taxonomic studies of deep-sea barophilic Shewanella strains and description of Shewanella violacea sp. nov.
- Y. Nogi, C. Kato, K. Horikoshi
- BiologyArchives of Microbiology
- 29 September 1998
Strain DSS12 is a member of a novel, moderately barophilic Shewanella species isolated from the Ryukyu Trench at a depth of 5,110 m, and the temperature range for growth and some of the biochemical characteristics indicate that strain DSS 12 differs from other Shewanelle species.
Characterization of alkaliphilic Bacillus strains used in industry: proposal of five novel species.
- Y. Nogi, H. Takami, K. Horikoshi
- Biology, EngineeringInternational Journal of Systematic and…
- 1 November 2005
Twenty alkaliphilic bacterial strains from industrial applications or enzyme studies were subjected to a polyphasic taxonomic investigation, including 16S rRNA gene sequencing, determination of…
Novel Chemoautotrophic Endosymbiosis between a Member of the Epsilonproteobacteria and the Hydrothermal-Vent Gastropod Alviniconcha aff. hessleri (Gastropoda: Provannidae) from the Indian Ocean
- Yohey Suzuki, Takenori Sasaki, K. Horikoshi
- BiologyApplied and Environmental Microbiology
- 1 September 2005
The results from anatomic, molecular phylogenetic, bulk and compound-specific carbon isotopic, and enzymatic analyses all support the inference that a novel nutritional strategy relying on chemoautotrophy in the epsilonproteobacterial endosymbiont is utilized by the hydrothermal-vent gastropod from the Indian Ocean.
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