Takahiko Nagahama

Summary

Affiliation: Japan Agency for Marine-Earth Science and Technology
Country: Japan

Publications

  1. ncbi request reprint Phylogenetic relationship within the Erythrobasidium clade: molecular phylogenies, secondary structure, and intron positions inferred from partial sequences of ribosomal RNA and elongation factor-1alpha genes
    Takahiko Nagahama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology JAMSTEC, Yokosuka, Kanagawa, Japan
    J Gen Appl Microbiol 52:37-45. 2006
  2. ncbi request reprint Rhodotorula pacifica sp. nov., a novel yeast species from sediment collected on the deep-sea floor of the north-west Pacific Ocean
    Takahiko Nagahama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 56:295-9. 2006
  3. doi request reprint Dipodascus tetrasporeus sp. nov., an ascosporogenous yeast isolated from deep-sea sediments in the Japan Trench
    Takahiko Nagahama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 58:1040-6. 2008
  4. ncbi request reprint Rhodotorula benthica sp. nov. and Rhodotorula calyptogenae sp. nov., novel yeast species from animals collected from the deep-sea floor, and Rhodotorula lysiniphila sp. nov., which is related phylogenetically
    Takahiko Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 53:897-903. 2003
  5. ncbi request reprint Rhodotorula lamellibrachii sp. nov., a new yeast species from a tubeworm collected at the deep-sea floor in Sagami bay and its phylogenetic analysis
    T Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, Yokosuka
    Antonie Van Leeuwenhoek 80:317-23. 2001
  6. ncbi request reprint Distribution and identification of red yeasts in deep-sea environments around the northwest Pacific Ocean
    T Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, Yokosuka
    Antonie Van Leeuwenhoek 80:101-10. 2001
  7. ncbi request reprint Kluyveromyces nonfermentans sp. nov., a new yeast species isolated from the deep sea
    T Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center, JAMSTEC, Yokosuka, Japan
    Int J Syst Bacteriol 49:1899-905. 1999
  8. doi request reprint Geofilum rubicundum gen. nov., sp. nov., isolated from deep subseafloor sediment
    Masayuki Miyazaki
    Subsurface Geobiology Advanced Research SUGAR Project, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 62:1075-80. 2012
  9. doi request reprint Yeast extract stimulates production of glycolipid biosurfactants, mannosylerythritol lipids, by Pseudozyma hubeiensis SY62
    Masaaki Konishi
    Institute of Biogeosciences, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15, Natsushima cho, Yokosuka 237 0061, Japan
    J Biosci Bioeng 111:702-5. 2011
  10. ncbi request reprint Cryptococcus surugaensis sp. nov., a novel yeast species from sediment collected on the deep-sea floor of Suruga Bay
    Takahiko Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 53:2095-8. 2003

Detail Information

Publications19

  1. ncbi request reprint Phylogenetic relationship within the Erythrobasidium clade: molecular phylogenies, secondary structure, and intron positions inferred from partial sequences of ribosomal RNA and elongation factor-1alpha genes
    Takahiko Nagahama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology JAMSTEC, Yokosuka, Kanagawa, Japan
    J Gen Appl Microbiol 52:37-45. 2006
    ..The information on intron positions in the EF-1alpha gene had potential usefulness in the phylogenetic inference between closely related species...
  2. ncbi request reprint Rhodotorula pacifica sp. nov., a novel yeast species from sediment collected on the deep-sea floor of the north-west Pacific Ocean
    Takahiko Nagahama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 56:295-9. 2006
    ..As ballistoconidia and sexual reproduction were not observed in strains SY-96T and SY-246, these strains are described as Rhodotorula pacifica sp. nov. The type strain is SY-96T (= JCM 10908T = CBS 10070T)...
  3. doi request reprint Dipodascus tetrasporeus sp. nov., an ascosporogenous yeast isolated from deep-sea sediments in the Japan Trench
    Takahiko Nagahama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 58:1040-6. 2008
    ..The species is homothallic. The type strain of Dipodascus tetrasporeus sp. nov. is strain SY-277T (=NBRC 103136T =CBS 10071T)...
  4. ncbi request reprint Rhodotorula benthica sp. nov. and Rhodotorula calyptogenae sp. nov., novel yeast species from animals collected from the deep-sea floor, and Rhodotorula lysiniphila sp. nov., which is related phylogenetically
    Takahiko Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 53:897-903. 2003
    ..8S rDNA regions. R. benthica and R. laryngis were closer to R. pallida based on the D1/D2 region. Other relationships were not clear...
  5. ncbi request reprint Rhodotorula lamellibrachii sp. nov., a new yeast species from a tubeworm collected at the deep-sea floor in Sagami bay and its phylogenetic analysis
    T Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, Yokosuka
    Antonie Van Leeuwenhoek 80:317-23. 2001
    ..8S rDNA phylogenetic tree. These five species shared a signature sequence in 26S rDNA, although this relationship was not supported by phylogeny based on the D1/D2 region of 26S rDNA...
  6. ncbi request reprint Distribution and identification of red yeasts in deep-sea environments around the northwest Pacific Ocean
    T Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, Yokosuka
    Antonie Van Leeuwenhoek 80:101-10. 2001
    ..Some strains assigned to known species on the basis of phenotypic features should be regarded as new species as suggested by the results of molecular analysis...
  7. ncbi request reprint Kluyveromyces nonfermentans sp. nov., a new yeast species isolated from the deep sea
    T Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center, JAMSTEC, Yokosuka, Japan
    Int J Syst Bacteriol 49:1899-905. 1999
    ..Because this species lacks the fermentative ability considered to be an important criterion for the genus Kluyveromyces, the definition of the genus has been emended. The type strain of K. nonfermentans is strain SY-33T (= JCM 10232T)...
  8. doi request reprint Geofilum rubicundum gen. nov., sp. nov., isolated from deep subseafloor sediment
    Masayuki Miyazaki
    Subsurface Geobiology Advanced Research SUGAR Project, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 62:1075-80. 2012
    ..nov., sp. nov. is proposed. The type strain of Geofilum rubicundum is JAM-BA0501(T) ( = JCM 15548(T)  = NCIMB 14482(T))...
  9. doi request reprint Yeast extract stimulates production of glycolipid biosurfactants, mannosylerythritol lipids, by Pseudozyma hubeiensis SY62
    Masaaki Konishi
    Institute of Biogeosciences, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15, Natsushima cho, Yokosuka 237 0061, Japan
    J Biosci Bioeng 111:702-5. 2011
    ..Furthermore, we demonstrated a highly efficient production of MELs in the improved medium by fed-batch cultivation. The final concentration of MELs reached 129 ± 8.2g/l for one week...
  10. ncbi request reprint Cryptococcus surugaensis sp. nov., a novel yeast species from sediment collected on the deep-sea floor of Suruga Bay
    Takahiko Nagahama
    Deep sea Microorganism Research Group, Japan Marine Science and Technology Center JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 53:2095-8. 2003
    ..As ballistoconidia and sexual reproduction were not observed in strain SY-260(T), this strain is described as Cryptococcus surugaensis sp. nov. (type strain, SY-260(T)=JCM 11903(T)=CBS 9426(T))...
  11. doi request reprint Amphritea japonica sp. nov. and Amphritea balenae sp. nov., isolated from the sediment adjacent to sperm whale carcasses off Kagoshima, Japan
    Masayuki Miyazaki
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology, Yokosuka, Japan
    Int J Syst Evol Microbiol 58:2815-20. 2008
    ..nov. (type strain JAMM 1866(T)=JCM 14782(T)=ATCC BAA-1530(T); reference strain JAMM 1548) and Amphritea balenae sp. nov. (type strain JAMM 1525(T)=JCM 14781(T)=ATCC BAA-1529(T)) are proposed...
  12. doi request reprint Microbulbifer chitinilyticus sp. nov. and Microbulbifer okinawensis sp. nov., chitin-degrading bacteria isolated from mangrove forests
    Atsushi Baba
    Extremobiosphere Research Program, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15 Natsushima cho, Yokosuka 237 0061, Japan
    Int J Syst Evol Microbiol 61:2215-20. 2011
    ..nov. (type strain, ABABA212(T) = JCM 16148(T) = NCIMB 14577(T)) and Microbulbifer okinawensis sp. nov. (type strain, ABABA23(T) = JCM 16147(T) = NCIMB 14576(T); reference strain, ABABA211) are proposed...
  13. pmc The Hadal Amphipod Hirondellea gigas possessing a unique cellulase for digesting wooden debris buried in the deepest seafloor
    Hideki Kobayashi
    Institute of Biogeosciences, Japan Agency for Marine Earth Science and Technology, Yokosuka, Japan
    PLoS ONE 7:e42727. 2012
    ..These results strongly suggested that H. gigas adapted to its extreme oligotrophic hadal oceanic environment by evolving digestive enzymes capable of digesting sunken wooden debris...
  14. ncbi request reprint Biodiversity in deep-sea sites located near the south part of Japan
    H Takami
    Deep Sea Microorganisms Research Group, Japan Marine Science and Technology Center, Yokosuka
    Extremophiles 3:97-102. 1999
    ..No extremophilic strains isolated in this study showed growth at 60MPa, although a few of the other isolates grew slightly at this hydrostatic pressure...
  15. ncbi request reprint Characterization of cold- and high-pressure-active polygalacturonases from a deep-sea yeast, Cryptococcus liquefaciens strain N6
    Fumiyoshi Abe
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology JAMSTEC, Yokosuka, Japan
    Biosci Biotechnol Biochem 70:296-9. 2006
    ..We speculate that such a volume expansion upon forming the enzyme-substrate complexes contributes to decreasing the activation energy for hydrolysis. This can account for the high activity of N6-PGases at low-temperature...
  16. ncbi request reprint Survival of deep-sea shrimp (Alvinocaris sp.) during decompression and larval hatching at atmospheric pressure
    Sumihiro Koyama
    Extremobiosphere Research Center, Japan Agency for Marine Earth Science and Technology, 2 15 Natsushima cho, Yokosuka, 237 0061, Japan
    Mar Biotechnol (NY) 7:272-8. 2005
    ..Although no molting of the shrimp larvae was observed during 74 days of rearing under atmospheric pressure, the larvae developed conventional dark-adapted eyes after 15 days...
  17. doi request reprint Biosurfactant-producing yeast isolated from Calyptogena soyoae (deep-sea cold-seep clam) in the deep sea
    Masaaki Konishi
    Institute of Biogeosciences, Japan Agency for Marine Earth Science and Technology JAMSTEC, 2 15, Natsushima cho, Yokosuka 237 0061, Japan
    J Biosci Bioeng 110:169-75. 2010
    ..1x10(-5) M) than conventional MEL-C which bound C(10) and C(12) acids (9.1x10(-6) M). From these results, shorter fatty acids would confer hydrophilicity onto the novel MEL-C...
  18. doi request reprint Molecular evidence that deep-branching fungi are major fungal components in deep-sea methane cold-seep sediments
    Takahiko Nagahama
    Department of Foods and Human Nutrition, Higashi Chikushi Junior College, 5 1 1 Shimoitozu, Kokurakita ku, Kitakyusyu, 803 8511, Japan
    Environ Microbiol 13:2359-70. 2011
    ....
  19. ncbi request reprint Systematic study of basidiomycetous yeasts - evaluation of the ITS regions of rDNA to delimit species of the genus Rhodosporidium
    Makiko Hamamoto
    Japan Collection of Microorganisms, RIKEN The Institute of Physical and Chemical Research, Wako, Saitama 351 0198, Japan
    FEMS Yeast Res 2:409-13. 2002
    ....