Ken Takai

Ph. D.
Star Platinum
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
Web Page: 高井研Wiki

Research Achievements (Original treatises with peer reviews: International Journals)

2010
  • Takai, K., and Nakamura, K.
    Compositional, physiological and metabolic variability in microbial communities associated with geochemically diverse, deep-sea hydrothermal vent fluids.
    Geomicrobiology: Molecular & Environmental Perspective (eds. L. Barton, M. Mendl and A. Loy), Springer, NY. (2010) pp. 251-283
  • Yamamoto, M., Nakagawa, S., Shimamura, S., Takai, K., and Horikoshi, K.
    Molecular characterization of inorganic sulfur-compounds metabolisms in a deep-sea epsilon-proteobacterium Sulfurovum sp. NBC37-1.
    Environ. Microbiol. (2010) 12:1144-1153
  • Takaki, Y., Shimamura, S., Nakagawa, S., Fukuhara, Y., Horikawa, H., Ankai, A., Harada, T., Hosoyama, A., Oguchi, A., Fukui, S., Fujita, N., Takami, H., and Takai, K.
    Bacterial lifestyle in a deep-sea hydrothermal vent chimney revealed by the genome sequence of the thermophilic bacterium Deferribacter desulfuricans SSM1.
    DNA Res. (2010) 17:123-137
  • Kawagucci, S., Toki, T., Ishibashi, J., Takai, K., Ito, M., Oomori, T., and Gamo, T.
    Isotopic variation of molecular hydrogen in 20℃-375℃ hydrothermal fluids as detected by a new analytical method.
    J. Geophys. Res. (2010) 115:G03021.
  • Shibuya, T., Komiya, T., Nakamura, K., Takai, K., and Maruyama, S.
    Highly alkaline, high-temperature hydrothermal fluids in the early Archean ocean.
    Precambrian Res. (2010) 182:230-238
  • Nakamura, R., Takashima, T., Kato, S., Takai, K., Yamamoto, M., and Hashimoto, K.
    Electrical Current Generation across a Black Smoker Chimney
    Angewandte Chemie (2010) 49:7692-7694.
  • Wheat, C. G., Fryer, P., Takai, K., Hulme, S.
    South Chamorro Seamount.
    Oceanography (2010) 23:174-175.
  • Nunoura, T., Oida, H., Nakaseama, M., Kosaka, A., Ohkubo, S. B., Kikuchi, T., Kazama, H., Hosoi-Tanabe, S., Nakamura, K., Kinoshita, M., Hirayama, H., Inagaki, F., Tsunogai, U., Ishibashi, J., Takai, K.
    Archaeal Diversity and Distribution along Thermal and Geochemical Gradients in Hydrothermal Sediments at the Yonaguni Knoll IV Hydrothermal Field in the Southern Okinawa Trough.
    Appl. Environ. Microbiol. (2010) 76:1198-1211.
2009 2008 2007
  • Hirayama, H., Sunamura, M., Takai, K., Nunoura, T., Noguchi, T., Oida, H., Furushima, Y., Yamamoto, H., Oomori, T., & Horikoshi, K.
    Culture-dependent and -independent characterization of microbial communities associated with a shallow submarine hydrothermal system occurring within a coral reef off Taketomi Island, Japan.
    Appl. Environ. Microbiol. (2007) 73:7642-7656.
  • Nunoura, T., Oida, H., Miyazaki, M., Suzuki, Y., Takai, K., & Horikoshi, K.
    Desulfothermus okinawensis sp. nov., a thermophilic and heterotrophic sulfate-reducing bacterium isolated from a deep-sea hydrothermal field.
    Int. J. Syst. Evol. Microbiol. (2007) 57:2360-2364.
  • Nakagawa, S., Takaki, Y., Shimamura, S., Reysenbach. A-L., Takai, K., & Horikoshi, K.
    Deep-sea vent epsilon-proteobacterial genomes provide insights into emergence of pathogens.
    Proc. Natl. Acad. Sci. USA, (2007) 104:12146-12150.
  • Kobayashi, T., Lu, J., Li, Z., Hung, V. S., Kurata, A., Hatada, Y., Takai, K., Ito, S., & Horikoshi, K.
    (2007) Extremely high alkaline protease from a deep subsurface bacterium, Alkaliphilus transvaalensis.
    Appl. Microbiol. Biotechnol., (2007) 75:71-80.
  • Nunoura, T., Oida, H., Miyazaki, M., Suzuki, Y., Takai, K., & Horikoshi, K.
    Marinitoga okinawensis sp. nov., a novel thermophilic and anaerobic heterotroph isolated from a deep-sea hydrothermal field, Southern Okinawa Trough.
    Int. J. Syst. Evol. Microbiol. (2007) 57:467 - 471.
  • Fisher, C. R., Takai, K., & Le Bris, N.
    Hydrothermal vent ecosystems.
    Oceanography (2007) 20:18-27.
2006
  • Kojima, S., Watanabe, H., Tsuchida, S., Fujikura, K., Rowden, A. A., Takai, K., & Miura T.
    Phylogenetic relationships of a tube worm (Lamellibrachia juni) from three hydrothermal vent fields in the South Pacific.
    Journal of the Marine Biological Association of the United Kingdom, (2006) 86:1357-1361.
  • Nakagawa, S., Inagaki, F., Suzuki, Y., Steinsbu, B. O., Lever, M. A., Takai, K., Engelen, B., Sako, Y., Wheat, C. G., Horikoshi, K., & Integrated Ocean Drilling Program Expedition 301 Scientists.
    Microbial community in black rust exposed to hot ridge flank crustal fluids.
    Appl. Environ. Microbiol. (2006) 72:6789-6799.
  • Nunoura, T., Oida, H., Masui, N., Inagaki, F., Takai, K., Hirano, S., Nealson, K. H., & Horikoshi, K.
    Culture-dependent and independent analyses of subsurface microbial communities in oil-bearing strata of the Sagawa oil reservoir.
    Island Arc (2006) 15:328-337.
  • Inagaki, F., Kuypers, M. M. M., Tsunogai, U., Ishibashi, J., Nakamura, K., Treude, T., Ohkubo, S., Nakaseama, M., Gena, K., Chiba, H., Hirayama, H., Nunoura, T., Takai, K., Jørgensen, B. B., Horikoshi, K., & Boetius, A.
    Microbial community in a sediment-hosted CO2 lake of the southern Okinawa Trough hydrothermal system.
    Proc. Natl. Acad. Sci. USA, (2006) 103:14164-14169.
  • Takai, K., Nakamura, K., Suzuki, K., Inagaki, F., Nealson, K. H., & Kumagai, H.
    Ultramafics-Hydrothermalism-Hydrogenesis-HyperSLiME (UltraH3) linkage: a key insight into early microbial ecosystem in the Archean deep-sea hydrothermal systems.
    Paleontological Res. (2006) 10:269-282.
  • Takai, K., Nakagawa, S., Reysenbach, A.-L., & Hoek, J.
    Microbial ecology of Mid-Ocean Ridges and Back-Arc Basins.
    Geophysical Monograph Series 166: Back Arc Spreading Systems; Geological, Biological, Chemical and Physical Interactions, (2006) 185-213.
  • Takai, K., Miyazaki, M., Nunoura, T., Hirayama, H., Oida, H., Furushima, Y., Yamamoto, H., & Horikoshi, K.
    Sulfurivirga caldicuralium gen. nov., sp. nov., a novel microaerobic, thermophilic, thiosulfate-oxidizing chemolithoautotroph isolated from a shallow marine hydrothermal system occurring in the coral reef, Japan.
    Int. J. Syst. Evol. Microbiol. (2006) 56:1921-1929.
  • Takai, K., Suzuki, M., Nakagawa, S., Miyazaki, M., Suzuki, Y., Inagaki, F., & Horikoshi, K.
    Sulfurimonas paralvinella sp. nov., a novel mesophilic, hydrogen- and sulfur-oxidizing chemolithoautotroph within epsilon-Proteobacteria from a deep-sea hydrothermal vent polychaetes nest, reclassification of Thiomicrospira denitrificans strain DSM1251T as Sulfurimonas denitrificans comb. nov., and emended description of the genus Sulfurimonas.
    Int. J. Syst. Evol. Microbiol. (2006) 56:1725-1733.
  • Nunoura, T., Oida, H., Toki, T., Ashi, J., Takai, K., & Horikoshi, K.
    Quantification of mcrA by quatitative fluorescent PCR in sediments from methane seep of the Nankai Trough.
    FEMS Microbiol. Ecol. (2006) 57:149-157.
  • Nakagawa, S., & Takai, K.
    Methods for the isolation of thermophiles from deep-sea hydrothermal environments.
    In Methods in Microbiology, (2006) 35:55-91. Edited by F. A. Rainey and A. Oren. Amsterdam: Elsevier Acedmic Press.
  • Campbell, B. J., Engel, A., Porter, M., & Takai, K.
    The versatile Epsilonproteobacteria: key players in sulfidic habitats.
    Nature Rev. Microbiol. (2006) 4:458-468.
  • Inagaki, F., Nunoura, T., Nakagawa, S., Teske, A., Lever, M., Lauer, A., Suzuki, M., Takai, K., Delwiche, D., Colwell, F. S., Nealson, K. H., Horikoshi, K., D’Hondt, S., & Jørgensen, B.B.
    Biogeographical distribution and diversity of microbes in methane hydrate-bearing deep marine sediments on the Pacific Ocean Margin.
    Proc. Natl. Acad. Sci. USA, (2006) 103:2815-2820.
  • Suzuki, Y., Kojima, S., Watanabe H., Suzuki, M., Tsuchida, S., Nunoura, T., Hirayama, H., Takai, K., Nealson, K. H., & Horikoshi, K.
    Single host and symbiont lineages of hydrothermal-vent gastropods Iferemeria nautilei (Provannidae): biogeography and evolution.
    Mar. Ecol. Prog. Ser. (2006) 315:167-175.
  • Suzuki, Y., Kojima, S., Sasaki, T., Suzuki, M., Utsumi, T., Watanabe, H., Urakawa, H., Tsuchida, S., Nunoura, T., Hirayama, H., Takai, K., Nealson, K. H., & Horikoshi, K.
    Host-symbiont relationships in hydrothermal vent gastropods of the genus Alviniconcha from the Southwest Pacific.
    Appl. Environ. Microbiol. (2006) 72:1388-1393.
  • Suzuki, Y., Kopp, R. E., Kogure, T., Suga, A., Takai, K., Tsuchida, S., Ozaki, N., Endo, K., Hashimoto, J., Kato, Y., Mizota, C., Hirata, T., Chiba, H., Nealson, K. H., Horikoshi, K., & Kirschvink, J. L.
    Sclerite formation in the hydrothermal-vent “scaly-foot” gastropod-possible control of iron sulfide biomineralization by the animal.
    Ear. Planet. Sci. Lett. (2006) 242:39-50.
  • Ishibashi, J., Lupton, J. E., Yamaguchi, T., Querellou, J., Nunoura, T., Takai, K. & the YK04-09 science party
    Revisiting the hydrothermal systems of the Valu Fa Ridge, southern Lau Basin, 15 years after their discovery.
    EOS Trans. American Geophysical Union (2006) 87:13-24.
  • Nakagawa, T., Takai, K., Suzuki, Y., Hirayama, H., Konno,U., Tsunogai, U., & Horikoshi, K.
    Geomicrobiological exploration and characterization of a novel deep-sea hydrothermal system at the TOTO caldera in the Mariana Volcanic Arc.
    Environ. Microbiol. (2006) 8:37-49.
  • Kovacik, W. P. Jr., Takai, K., Mormile, M.R., McKinley, J. P., Brockman, F. J., Fredrickson, J. K., & Holben, W. E.
    Molecular analysis of deep subsurface cretaceous rock indicates abundant Fe(III)- and S0-reducing bacteria in a sulfate-rich environment.
    Environ. Microbiol. (2006) 8:141-155.
2005
  • Colwell, F. S., Nunoura, T., Delwiche, M. E., Boyd, S., Bolton, R., Reed, D. W., Takai, K., Lehman, R. M., Horikoshi, K., Elias, D. A., & Phelps, T. J.
    Evidence of minimal methanogenic numbers and activity in sediments collected from the JAPEX/JNOC/GSC et al. Mallik 5L-38 gas hydrate production research well. In Scientific results from the Mallik 2002 Gas Hydrate Production Research Well Program, Mackenzie Delta, Northwest Territories, Canada,
    (eds.) S. R. Dallimore and T. S. Collett, Geological Survey of Canada, Bulletin 585:1-11.
  • Nealson, K. H., Inagaki, F., & Takai, K.
    Hydrogen-driven subsurface lithoautotrophic microbial ecosystems (SLiMEs): do they exist and why should we care?
    Trends in Microbiol. (2005) 13:405-410.
  • Suzuki, Y., Sasaki, T., Suzuki, M., Nogi, Y., Miwa, T., Takai, K., Nealson, K. H., & Horikoshi, K.
    Novel chemoautotrophic endosymbiosis between a member of the epsilon-Proteobacteria and the hydrothermal-vent gastropod Alviniconcha aff. hessleri (Gastropoda:Provannidae) from the Indian Ocean.
    Appl. Environ. Microbiol. (2005) 71:5450-5460.
  • Nakagawa, S., Takai, K., Inagaki, F., Chiba, H., Ishibashi, J., Kataoka, S., Hirayama, H., Nunoura, T., Horikoshi, K., & Sako, Y.
    Variability in microbial community and venting chemistry in a sediment-hosted backarc hydrothermal system: impacts of subseafloor phase-separation.
    FEMS Microbiol. Ecol. (2005) 54:141-155.
  • Nakagawa, S., Takai, K., Inagaki, F., Hirayama, H., Nunoura, T., Horikoshi, K., & Sako, Y.
    Distribution, phylogenetic diversity and physiological characteristics of epsilon-Proteobacteria in a deep-sea hydrothermal field.
    Environ. Microbiol. 7:1619-1632.
  • Nunoura, T., Hirayama, H., Takami, H., Oida, H., Nishi, S., Shimamura, S., Suzuki, Y., Inagaki, F., Takai, K., Nealson, K. H., & Horikoshi, K.
    Genetic and functional properties of uncultivated thermophilic crenarchaeotes from a subsurface gold mine as revealed by analysis of genome fragments.
    Environ. Microbiol. (2005) 7:1967-1984.
  • Takai, K., Campbell, B. J., Cary, S. C., Suzuki, M., Oida, H., Nunoura, T., Hirayama, H., Nakagawa, S., Suzuki, Y., Inagaki, F., & Horikoshi, K.
    Enzymatic and genetic characterization of carbon and energy metabolisms from deep-sea hydrothermal chemolithoautotrophic epsilon-Proteobacteria.
    Appl. Environ. Microbiol. (2005) 71:7310-7320.
  • Hirayama, H., Takai, K., Inagaki, F., Yamato, Y., Suzuki, M., Nealson, K. H., & Horikoshi, K.
    Bacterial community shift along a subsurface geothermal water stream in a Japanese gold mine.
    Extremophiles (2005) 9:169-184.
  • Mitsuzawa, S., Deguchi, S., Takai, K., Tsujii, K., & Horikoshi, K.
    Flow-type apparatus for studying thermotolerance of hyperthermophiles under conditions simulating hydrothermal vent circulation.
    Deep-Sea Res. (2005) Part I 52:1085-1092.
  • Hirayama, H., Takai, K., Inagaki, F., Nealson, K. H., & Horikoshi, K.
    Thiobacter subterraneus gen. nov., sp. nov., an obligately chemolithoautotrophic, thermophilic, sulfur-oxidizing bacterium from a subsurface hot aquifer.
    Int. J. Syst. Evol. Microbiol. (2005) 55:467-472.
  • Nakagawa, S., Inagaki, F., Takai, K., Horikoshi, K., & Sako, Y.
    Thioreductor micantisoli gen. nov., sp. nov., a novel mesophilic, sulfur-reducing chemolithoautotroph within the epsilon-Proteobacteria isolated from hydrothermal sediments in the Mid-Okinawa Trough.
    Int. J. Syst. Evol. Microbiol. (2005) 55:599-605.
  • Nakagawa, S., Takai, K., Inagaki, F., Horikoshi, K., & Sako, Y.
    Nitratiruptor tergarcus gen. nov., sp. nov. and Nitratifractor salsuginis gen. nov., sp. nov., nitrate-reducing chemolithoautotrophs of the epsilon-Proteobacteria isolated from a deep-sea hydrothermal system in the Mid-Okinawa Trough.
    Int. J. Syst. Evol. Microbiol. (2005) 55:925-933.
  • Takai, K., Hirayama, H., Nakagawa, T., Suzuki, Y., Nealson, K. H., & Horikoshi, K.
    Lebetimonas acidiphila gen. nov., sp. nov., a novel thermophilic, acidophilic, hydrogen-oxidizing chemolithoautotroph within the 'Epsilonproteobacteria', isolated from a deep-sea hydrothermal fumarole in the Mariana Arc.
    Int. J. Syst. Evol. Microbiol. (2005) 55:183-189.
  • Takai, K., Moyer, C. L., Miyazaki, M., Nogi, Y., Hirayama, H., Nealson, K. H., & Horikoshi, K.
    Marinobacter alkaliphilus sp. nov., a novel alkaliphilic bacterium isolated from subseafloor alkaline serpentine mud from Ocean Drilling Program (ODP) Site 1200 at South Chamorro Seamount, Mariana Forearc.
    Extremophiles (2005) 9:17-27.
2004
  • Inagaki, F., Tsunogai, U., Suzuki, M., Kosaka, A., Machiyama, H., Takai, K., Nunoura, T., Nealson, K. H., & Horikoshi, K.
    Characterization of C1-metabolizing prokaryotic communities in methane seep habitats at the Kuroshima Knoll, Southern Ryukyu Arc, by analyzing pmoA, mmoX, mxaF, mcrA, and 16S rRNA genes.
    Appl. Environ. Microbiol. (2004) 70:7445-7455.
  • Takai, K., Hirayama, H., Nakagawa, T., Suzuki, Y., Nealson, K. H., & Horikoshi, K.
    Thiomicrospira thermophila sp. nov., a novel microaerobic, thermotolerant, sulfur-oxidizing chemolithomixotroph isolated from a deep-sea hydrothermal fumarole in the TOTO caldera, Mariana Arc, Western Pacific.
    Int. J. Syst. Evol. Microbiol. (2004) 54:2325-2333.
  • Nakagawa, S., Nakamura, S., Inagaki, F., Takai, K., Shirai, N., & Sako, Y.
    Hydrogenivirga caldilitoris gen. nov., sp. nov., a novel extremely thermophilic, hydrogen/sulfur-oxidizing bacterium from a coastal hydrothermal field.
    Int. J. Syst. Evol. Microbiol. (2004) 54:2079-2084.
  • Takai, K., Gamo, T., Tsunogai, U., Nakayama, N., Hirayama, H., Nealson, K. H., & Horikoshi, K.
    Geochemical and microbiological evidence for a hydrogen-based, hyperthermophilic subsurface lithoautotrophic microbial ecosystem (HyperSLiME) beneath an active deep-sea hydrothermal field.
    Extremophiles, (2004) 8:269-282.
  • Nakagawa, T., Nakagawa, S., Inagaki, F., Takai, K., & Horikoshi, K.
    Phylogenetic diversity of sulfate-reducing prokaryotes in active deep-sea hydrothermal vent chimney structures.
    FEMS Microbiol. Lett. (2004) 232:145-152.
  • Takai, K., Inagaki, F., & Horikoshi, K.
    Distribution of unusual Archaea in Subsurface Biosphere.
    Geophysical Monograph Series The subseafloor biosphere biosphere at Mid Ocean-Ridge (2004) 144:369-381.
  • Takai, K., Oida H., Suzuki, Y., Hirayama, H., Nakagawa, S., Nunoura, T., Inagaki, F., Nealson, K. H., & Horikoshi, K.
    Spatial distribution of Marine Crenarchaeota Group I in the vicinity of deep-sea hydrothermal systems.
    Appl. Environ. Microbiol. (2004) 70:2404-2413.
  • Nakagawa, S., Takai, K., Horikoshi, K., & Sako, Y.
    Aeropyrum camini sp. nov., a strictly aerobic, hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney.
    Int. J. Syst. Evol. Microbiol. (2004) 54:329-335.
  • Inagaki, F., Takai, K., Nealson, K. H., & Horikoshi, K.
    Sulfurovum lithotrophicum gen. nov., sp. nov., a novel sulfur-oxidizing chemolithoautotroph within the epsilon-Proteobacteria isolated from Okinawa Trough hydrothermal sediments.
    Int. J. Syst. Evol. Microbiol. (2004) 54:1477-1488.
  • Takai, K., Nealson, K. H., & Horikoshi, K.
    Methanotorris formicicus sp. nov., a novel extremely thermophilic, methane-producing archaeon isolated from a black smoker chimney in the Central Indian Ridge.
    Int. J Syst. Evol. Microbiol. (2004) 54:1095-1100.
  • Takai, K., Nealson, K. H., & Horikoshi, K.
    Hydrogenimonas thermophila gen. nov., sp. nov., a novel thermophilic, hydrogen-oxidizing chemolithoautotroph within the epsilon-Proteobacteria, isolated from a black smoker in a Central Indian Ridge hydrothermal field.
    Int. J. Syst. Evol. Microbiol. (2004) 54:25-32.
  • Suzuki, Y., Inagaki, F., Takai, K., Nealson, K. H., & Horikoshi, K.
    Microbial diversity in inactive chimney structures from deep-sea hydrothermal systems.
    Microbial Ecol. (2004) 47:186-196.
2003
  • Moser, D. P., Onstott, T. C., Fredrickson, J. K., Brockman, F. J., Balkwill, D. L., Drake, G. R., Pfiffner, S. M., White, D. C., Takai, K., Pratt, L. M., Fong, J., Sherwood Lollar, B., Slater, G., Phelps, T. J., Spoelstra, N., Deflaun, M., Southam, G., Welty, A. T., Baker, B. J., & Hoek, J.
    Temporal shifts in the geochemistry and microbial community structure of an ultradeep mine borehole following isolation.
    Geomicrobiol. J. (2003) 20:517-548.
  • Inagaki, F., Suzuki, M., Takai, K., Oida, H., Sakamoto, T., Aoki, K., Nealson, K. H., & Horikoshi K.
    Microbial communities associated with geological horizons in coastal subseafloor sediments from the Sea of Okhotsk.
    Appl. Environ. Microbiol. (2003) 69:7224-7235.
  • Inagaki, F., Takai, K., Hirayama, H., Yamato, Y., Nealson, K. H., & Horikoshi, K.
    Distribution and phylogenetic diversity of the subsurface microbial community in a Japanese epithermal gold mine.
    Extremophiles (2003) 7:307-317.
  • Inagaki, F., Takai, K., Kobayashi, H., Nealson, K. H., & Horikoshi, K.
    Sulfurimonas autotrophica gen. nov., sp. nov., a novel sulfur-oxidizing epsilon-proteobacterium isolated from hydrothermal sediments in the mid-Okinawa Trough.
    Int. J. Syst. Evol. Microbiol. (2003) 53:1801-1805.
  • Takai, K., Nakagawa, S., Sako, Y., & Horikoshi, K.
    Balnearium lithotrophicum gen. nov., sp. nov., a novel thermophilic, strictly anaerobic hydrogen-oxidizing chemolithoautotroph isolated from a black smoker chimney in the Suiyo Seamount hydrothermal system.
    Int. J. Syst. Evol. Microbiol. (2003) 53:1947-1954.
  • Nakagawa, S., Takai, K., Horikoshi, K., & Sako, Y.
    Persephonella hydrogenophila sp. nov., a novel thermophilic, hydrogen-oxidizing bacterium from a deep-sea hydrothermal vent chimney.
    Int. J. Syst. Evol. Microbiol. (2003) 53:863-869.
  • Takai, K., Inagaki, F., Nakagawa, S., Hirayama, H., Nunoura, T., Sako, Y., Nealson, K. H., & Horikoshi, K.
    Isolation and phylogenetic diversity of members of previously uncultivated epsilon-Proteobacteria in deep-sea hydrothermal fields.
    FEMS Microbiol. Lett. (2003) 218:167-174.
  • Takai, K., Kobayashi, H., Nealson, K. H., and Horikoshi, K.
    Sulfurihydrogenobium subterraneum gen. nov., sp. nov., from a subsurface hot aquifer.
    Int. J. Syst. Evol. Microbiol. (2003) 53:823-827.
  • Takai, K., Kobayashi, H., Nealson, K. H., & Horikoshi, K.
    Deferribacter desulfuricans sp. nov., a novel sulfur-, nitrate- or arsenate-reducing thermophile isolated from a deep-sea hydrothermal vent.
    Int. J. Syst. Evol. Microbiol. (2003) 53:839-846.
  • Takai, K., Mormile, M. R., McKinley, J. P., Brockman, F. J., Holben, W. E., Kovacik, W. P. & Fredrickson, J. K.
    Shifts in archaeal communities associated with lithological and geochemical variations in subsurface Cretaceous rock.
    Environ. Microbiol. (2003) 5:309-320.
  • Baker, B. J., Moser, D. P., MacGregor, B. J., Fishbain, S., Wagner, M., Fry, N. K., Jackson, B., Speolsta, N., Loons, S., Takai, K., Lollar, B. S., Fredrickson, J. K., Balkwill, D., Onstott, T. C., Wimpee, C. F. & Stahl, D. A.
    Related assemblages of sulphate-reducing bacteria associated with ultradeep gold mines of South Africa and deep basalt aquifers of Washington State.
    Environ. Microbiol. (2003) 5:267-278.
  • Sako, Y., Nakagawa, S., Takai, K., & Horikoshi, K.
    Marinithermus hydrothermalis sp. nov., a sterictly aerobic, thermophilic bacterium from a deep-sea hydrothermal vent chimney.
    Int. J. Syst. Evol. Microbiol. (2003) 53:59-65.
2002
  • Inagaki, F., Sakihama, Y., Takai, K., Komatsu, T., Inoue, A., & Horikoshi, K.
    Transition in microbial community structures and presence of unusual microorganisms in a deep-sea rock.
    Geomicrobiol. J. (2002) 19:535-552.
  • Takai, K., Hirayama, H., Sakihama, Y., Inagaki, F., Yamato, Y. & Horikoshi, K.
    Isolation and metabolic characteristics of previously uncultured members of the order Aquificales in a subsurface gold mine.
    Appl. Environ. Microbiol. (2002) 68:3046-3054.
  • Nunoura, T., Aihara, S., Takai, K., & Sako, Y.
    Thermaerobacter nagasakiensis sp. nov., a novel aerobic and extremely thermophilic bacterium.
    Arch. Microbiol. (2002) 177:339-344.
  • Takai, K., Inoue, A., & Horikoshi, K.
    Methanothermococcus okinawensis sp. nov., a thermophilic methane-producing archaeon isolated from a Western Pacific deep-sea hydrothermal vent system.
    Int. J. Syst. Evol. Microbiol. (2002) 52:1089-1095.
  • Takai, K. & Fujiwara, Y.
    Biodiversity in deep-sea hydrothermal vents.
    Encyclopedia of Environmental Microbiology 1604-1617.
2001
  • Holden, J. F., Takai, K., Summit, M., Bolton, S., Zyskowski, J. & Baross, J. A.
    Diversity among three novel groups of hyperthermophilic deep-sea Thermococcus species from three sites in the northeastern Pacific Ocean.
    FEMS Microbiol. Ecol. (2001) 36:51-60.
  • Takai, K., Komatsu, T. Inagaki, F. And Horikoshi K.
    Distribution and colonization of archaea in a black smoker chimney structure.
    Appl. Environ. Microbiol. (2001) 67:3618-3629.
  • Inagaki, F., Takai, K., Komatsu, T., Kanematsu, T., Fujioka, K. & Horikoshi, K.
    Archaeology of archaea reveals evidence of Pleistogene thermal events concealed in deep-sea subseafloor sediments.
    Extremophiles (2001) 5:385-392.
  • Takai, K., Moser, D. P., Onstott, T. C. & Fredrickson, J. K.
    Archaeal diversity in deep subsurface South African gold mine environments and phylogenetic organization of archaeal domain.
    Appl. Environ. Microbiol. (2001) 67:5750-5760.
  • Takai, K., Komatsu, T., & Horikoshi, K.
    Hydrogenobacter subterraneus sp. nov., an extremely thermophilic, chemoorganotrophic bacterium isolated from a deep subsurface geothermal water pool.
    Int. J. Syst. Evol. Microbiol. (2001) 51:1425-1435.
  • Takai, K., Moser, D. P., Onstott, T. C., Spoelstra, N., Pfiffner, S. M., Dohnalkova, A. & Fredrickson, J. K.
    Alkaliphilus transvaalensis gen. nov., sp. nov., an extremely alkaliphilic bacterium isolated from a deep South African gold mine.
    Int. J. Syst. Evol. Microbiol. (2001) 51:1245-1256.
2000
  • Fujiwara, Y., Takai, K., Uematsu, K., Tsuchida, S., Hunt, J. C. & Hashimoto, J.
    Phylogenetic characterization of endosymbionts in three hydrothermal vent mussels: influence of host distribution.
    Mar. Ecol. Prog. Ser. (2000) 208:147-155.
  • Takai, K. & Horikoshi, K.
    Rapid detection and quantification of archaeal populations in various microbial communities by quantitative PCR using fluorogenic probes.
    Appl. Environ. Microbiol. (2000) 66:5066-5072.
  • Takai, K. & Horikoshi, K.
    Thermosipho japonicus, sp. nov., a barophilic extremely thermophilic bacterium isolated from a black smoker chimney of a deep-sea hydrothermal vent.
    Extremophiles, (2000) 4:9-17.
  • Takai, K., Sugai, A., Ito, T. & Horikoshi, K.
    Palaeococcus ferrophilus gen. nov., sp. nov., a barophilic hyperthermophilic archaeon from a deep-sea hydrothermal vent chimney.
    Int. J. Syst. Evol. Microbiol. (2000) 50:589-600.
1999
  • Takai, K. & Horikoshi, K.
    Molecular phylogenetic analysis of archaeal rDNA clones containing intron-like sequences obtained from a deep subsurface geothermal water pool.
    Appl. Environ. Microbiol. (1999) 65:5586-5589.
  • Takai, K. & Horikoshi, K.
    Genetic diversity of archaea in deep-sea hydrothermal vent environments.
    Genetics (1999) 152:1285-1297.
  • Takai, K., Inoue, A. & Horikoshi, K.
    Thermaerobacter marianensis gen. nov., sp. nov., an aerobic extremely thermophilic marine bacterium from the 11,000 m deep Mariana Trench.
    Int. J. Syst. Bacteriol. (1999) 49:619-628.
  • Takai, K. & Sako, Y.
    A molecular view of archaeal diversity in marine and terrestrial hot water environments.
    FEMS Microbiol. Ecol. (1999) 28:177-188.
1998
  • Takai, K., Nunoura, T., Sako, Y. & Uchida, A.
    Aquired thermotolerance and growth temperature induced proteins of an extereme thermophile Rhodothermus obamensis.
    J. Bacteriol. (1998) 180:2770-2774.
  • Takai, K., Sako, Y., Uchida, A. & Ishida, Y.
    ppc, the gene for phosphoenolpyruvate carboxylase from an extremely thermophilic bacterium, Rhodothermus obamensis: cloning, sequencing and overexpression in Escherichia coli.
    Microbiology (1998) 144:1423-1434.
1997
  • Takai, K., Sako, Y. & Uchida, A.
    Extrinsic thermostabilization factors and thermodenaturation mechanism of phosphoenolpyruvate carboxylase (PEPC) from an extremely thermophilic bacterium Rhodothermus obamensis.
    J. Ferment. Bioeng. (1997) 84:291-299.
  • Sako, Y., Takai, K., Nishisaka, T. & Ishida, Y.
    Biochemical relationship of phosphoenolpyruvate carboxylases (PEPCs) from thermophilic archaea.
    FEMS Microbiol. Lett. (1997) 153:159-165.
  • Takai, K., Sako, Y., Uchida, A. & Ishida, Y.
    Extremely thermostable phosphoenolpyruvate carboxylase from an extreme thermophile Rhodothermus obamensis.
    J. Biochem. (1997) 122:32-40.
1996
  • Sako, Y., Takai, K., Uchida, A. & Ishida, Y.
    Purification and characterization of phosphoenolpyruvate carboxylase from hyperthermophilic archaeon Methanothermus sociabilis.
    FEBS Lett. (1996) 392:148-152.
  • Sako, Y., Takai, K., Uchida, A., Ishida, Y. & Katayama, Y.
    Rhodothermus obamensis sp. nov., a modern lineage of extremely thermophilic marine bacterium.
    Int. J. Syst. Bacteriol. (1996) 46:1099-1104.
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Research Achievements (Original treatises with peer previews: Japanese Journals)

  • 高井研, 稲垣史生
    「地殻内微生物圏と熱水活動―地球と生命の共進化における接点―」
    地学雑誌 (2003) 122:234-249.
  • 高井研, 稲垣史生
    「極限環境微生物生態系と特殊微生物の探索」
    月刊バイオインダストリー (2002) 19:7-17.
  • 高井研
    「地殻内微生物、そして地球外微生物探査へ」
    微生物利用の大展開 (2002) p.165-171.
  • Kato, C. & Takai, K.
    Microbial diversity of deep-sea extremophiles-piezophiles, hyperthermophiles, and subsurface microorganisms-.
    Biological Sciences in space (2000) 14:341-352.
  • Takai, K. and Sako, Y.
    Molecular analysis and engneering of invisible majority in extreme environments.
    Microbes and Environments (2000) 15:45-57.
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Author and Reviewer

  • 布浦拓郎, 高井研
    「いま明らかにされるアーキアの物質循環における役割」
    蛋白質 核酸 酵素 (2009) 54:114-119.
  • 高井研
    「熱水循環が支える海底下微生物生態系」
    バイオインダストリー (2008) 25:18-26.
  • 爆笑問題, 高井研
    「深海に四〇億年前の世界を見た!」
    爆笑問題のニッポンの教養 (2008) File 17 講談社
  • 高井研, 中村謙太郎, 宮崎淳一, 山本正浩, 鈴木勝彦, 熊谷英憲
    「エネルギー代謝の進化から見た初期生命進化 ―UltraH3リンケージ仮説―」
    生命の科学 遺伝 (2007) 61:28-36.
  • Le Bris, N., Tivey, M. K., German, C. R., Sievert, S. M., Takai, K., Gaill, F., Lin, J., Bach, W., Edwards, K., Sarradin, P.-M., Holden, J., Connelly, D., & Lilley, M.
    InterRidge Theoretical Institute Biogeochemical interaction at Deep-Sea vents Short Report.
    InterRidge News, 2007.
  • D’Hondt, S., Inagaki, F., Ferdelman, T., Jorgensen, B. B., Kato, K., Kemp, P., Sobecky, P., Sogin, M., & Takai, K.
    Exploring subseafloor life with the Integrated Ocean Drilling Program.
    Scientific Drilling. (2007) 5:26-37.
  • Fuyuno I.
    Undersea vent blows blue: Coloured hotspot could reveal odd chemistry.
    Nature, Published online: 29 January 2007; | doi:10.1038/news070129-1
  • 布浦拓郎, 高井研
    「1.3 微生物の同定」
    実験化学講座 29 バイオテクノロジーの基本技術 (2006) p.33-49.
  • 高井研
    「地底奥深くに拡がる未知の生物圏」
    科学 (2006) 76:806-811.
  • 高井研
    「地殻内微生物圏と熱水活動」
    蛋白質 核酸 酵素 (2005) 50:1649-1659.
  • 高井研
    「深海熱水活動と地殻内微生物圏」
    生物工学会誌 (2005) 83:475-478.
  • Takai, K., & Inagaki, F.
    Possible occurrence of subsurface lithotrophic microbial ecosystem (SLiME) sustained by geologically derived energy and carbon sources: HyperSLiME in the Mid Ocean Ridges and AlkaliSLiME in the Mariana Forearc.
    Proc. 25th New Zealand Geothermal Workshop (2003) p.83-88.
  • 高井研
    「熱水環境微生物生態系から探る地球と生命の共進化」
    極限環境微生物学会誌 (2003) 2:8-9.
  • 高井研, 稲垣史生
    「世界初、深海底熱水噴出孔下微生物圏掘削に向けて」
    月刊海洋 (2003) 40:246-255.
  • Takai, K.
    The archaea world: the silent majority in the global subsurface biosphere.
    Proc. Korea-Japan Symposium on possible collaboration on East Sea scientific drilling between Korea and Japan in relation to IODP. p.123-146.
  • 稲垣史生, 高井研
    「地下生物圏の極限環境微生物」
    バイオサイエンスとインダストリー (2002) 60:30-33.
  • 高井研, 掘越弘毅 「深海底熱水孔環境における微生物の多様性ー海底下生物圏への窓」
    月刊海洋 (1999) 19:190-196.
  • 高井研, 左子芳彦
    「環境ゲノム工学の夜明け」
    バイオサイエンスとインダストリー (1999) 57:41-42.
  • Takai, K., Inoue, A. & Horikoshi, K.
    Isolation of a novel aerobic extremely thermophilic marine bacterium from the 11,000-m deep Mariana Trench.
    Science & Technology in Japan. 17:31-34.
  • 高井研
    「未知の遺伝子資源の探索」
    生物工学会誌 第76巻 第10号 p.439.
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