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K. Takai · SciRah

Researcher profile · Semantic Scholar

K. Takai

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K. Takai — researcher profile on SciRah

h-index: 82
Works: 478
Citations: 22K

Most-cited papers

Isolation of an archaeon at the prokaryote–eukaryote interface
H. Imachi, M. Nobu, Nozomi Nakahara, Y. Morono +18 more
2019Nature607 citations Open access
Semantic Scholar
Comparative Genomic Analysis of the Class Epsilonproteobacteria and Proposed Reclassification to Epsilonbacteraeota (phyl. nov.)
D. Waite, Inka Vanwonterghem, C. Rinke, D. Parks +9 more
2017Frontiers in Microbiology337 citations Open access
Semantic Scholar
A primordial and reversible TCA cycle in a facultatively chemolithoautotrophic thermophile
T. Nunoura, Y. Chikaraishi, Rikihisa Izaki, T. Suwa +13 more
2018Science183 citations
Semantic Scholar
Microbial community and geochemical analyses of trans-trench sediments for understanding the roles of hadal environments
S. Hiraoka, M. Hirai, Y. Matsui, Akiko Makabe +12 more
2019The ISME Journal136 citations Open access
Semantic Scholar
The Scaly-foot Snail genome and implications for the origins of biomineralised armour
Jin Sun, Chong Chen, Norio Miyamoto, Run-Sheng Li +17 more
2020Nature Communications113 citations Open access
Semantic Scholar
Deep-biosphere methane production stimulated by geofluids in the Nankai accretionary complex
A. Ijiri, F. Inagaki, Y. Kubo, R. Adhikari +37 more
2018Science Advances85 citations Open access
Semantic Scholar
Metals likely promoted protometabolism in early ocean alkaline hydrothermal systems
N. Kitadai, Ryuhei Nakamura, M. Yamamoto, K. Takai +2 more
2019Science Advances82 citations Open access
Semantic Scholar
Addendum: Comparative Genomic Analysis of the Class Epsilonproteobacteria and Proposed Reclassification to Epsilonbacteraeota (phyl. nov.)
D. Waite, Inka Vanwonterghem, C. Rinke, D. Parks +9 more
2018Frontiers in Microbiology82 citations Open access
Semantic Scholar
Spontaneous and Widespread Electricity Generation in Natural Deep-Sea Hydrothermal Fields.
M. Yamamoto, Ryuhei Nakamura, T. Kasaya, H. Kumagai +2 more
2017Angewandte Chemie80 citations
Semantic Scholar
Microbial Diversity in Sediments from the Bottom of the Challenger Deep, the Mariana Trench
T. Nunoura, M. Nishizawa, M. Hirai, S. Shimamura +8 more
2018Microbes and Environments76 citations Open access
Semantic Scholar
Mariana serpentinite mud volcanism exhumes subducted seamount materials: implications for the origin of life
P. Fryer, C. Wheat, T. Williams, C. Kelley +31 more
2020Philosophical Transactions of the Royal Society A63 citations Open access
Semantic Scholar
Unveiling the RNA virosphere associated with marine microorganisms
Syun-ichi Urayama, Y. Takaki, S. Nishi, Y. Yoshida-Takashima +3 more
2018Molecular Ecology Resources53 citations Open access
Semantic Scholar
Geoelectrochemical CO production: Implications for the autotrophic origin of life
N. Kitadai, Ryuhei Nakamura, M. Yamamoto, K. Takai +6 more
2017Science Advances52 citations Open access
Semantic Scholar
Genomics insights into ecotype formation of ammonia‐oxidizing archaea in the deep ocean
Yong Wang, Jiao-Mei Huang, G. Cui, T. Nunoura +7 more
2019Environmental Microbiology44 citations
Semantic Scholar
Long-Term Cultivation and Metagenomics Reveal Ecophysiology of Previously Uncultivated Thermophiles Involved in Biogeochemical Nitrogen Cycle
Shingo Kato, Sanae Sakai, M. Hirai, E. Tasumi +3 more
2018Microbes and Environments44 citations Open access
Semantic Scholar
Molybdenum Sulfide: A Bioinspired Electrocatalyst for Dissimilatory Ammonia Synthesis with Geoelectrical Current
Ya-Mei Li, A. Yamaguchi, M. Yamamoto, K. Takai +1 more
201742 citations
Semantic Scholar
The Nitrogen Cycle: A Large, Fast, and Mystifying Cycle
K. Takai
2019Microbes and Environments39 citations Open access
Semantic Scholar
Aggregatilinea lenta gen. nov., sp. nov., a slow-growing, facultatively anaerobic bacterium isolated from subseafloor sediment, and proposal of the new order Aggregatilineales ord. nov. within the class Anaerolineae of the phylum Chloroflexi.
Nozomi Nakahara, M. Nobu, Y. Takaki, M. Miyazaki +10 more
2019International Journal of Systematic and Evolutionary Microbiology37 citations Open access
Semantic Scholar
Thioester synthesis through geoelectrochemical CO2 fixation on Ni sulfides
N. Kitadai, Ryuhei Nakamura, M. Yamamoto, S. Okada +5 more
2020Communications Chemistry35 citations Open access
Semantic Scholar
WHATS-3: An Improved Flow-Through Multi-bottle Fluid Sampler for Deep-Sea Geofluid Research
J. Miyazaki, Akiko Makabe, Y. Matsui, Naoya Ebina +6 more
2017Frontiers in Earth Science34 citations Open access
Semantic Scholar
Phylogeography of hydrothermal vent stalked barnacles: a new species fills a gap in the Indian Ocean ‘dispersal corridor’ hypothesis
H. Watanabe, Chong Chen, D. Marie, K. Takai +2 more
2018Royal Society Open Science33 citations Open access
Semantic Scholar
Peptide Synthesis under the Alkaline Hydrothermal Conditions on Enceladus
Wataru Takahagi, K. Seo, T. Shibuya, Y. Takano +6 more
2019ACS Earth and Space Chemistry31 citations
Semantic Scholar
The making of natural iron sulfide nanoparticles in a hot vent snail
Satoshi Okada, Chong Chen, Tomo-o Watsuji, M. Nishizawa +5 more
2019Proceedings of the National Academy of Sciences of the United States of America30 citations Open access
Semantic Scholar
Quantitative Viral Community DNA Analysis Reveals the Dominance of Single-Stranded DNA Viruses in Offshore Upper Bathyal Sediment from Tohoku, Japan
Mitsuhiro Yoshida, Tomohiro Mochizuki, Syun-ichi Urayama, Y. Yoshida-Takashima +6 more
2018Frontiers in Microbiology29 citations Open access
Semantic Scholar
Fluid transport and reaction processes within a serpentinite mud volcano: South Chamorro Seamount
C. Wheat, J. Seewald, K. Takai
202028 citations Open access
Semantic Scholar
Endemicity of the cosmopolitan mesophilic chemolithoautotroph Sulfurimonas at deep-sea hydrothermal vents
Sayaka Mino, S. Nakagawa, H. Makita, T. Toki +14 more
2017The ISME Journal28 citations Open access
Semantic Scholar
Origin of Short-Chain Organic Acids in Serpentinite Mud Volcanoes of the Mariana Convergent Margin
P. Eickenbusch, K. Takai, Olivier Sissman, Shino Suzuki +9 more
2019Frontiers in Microbiology26 citations Open access
Semantic Scholar
Cultivable microbial community in 2-km-deep, 20-million-year-old subseafloor coalbeds through ~1000 days anaerobic bioreactor cultivation
H. Imachi, E. Tasumi, Y. Takaki, T. Hoshino +12 more
2019Scientific Reports25 citations Open access
Semantic Scholar
Deep-Sea Hydrothermal Fields as Natural Power Plants
M. Yamamoto, Ryuhei Nakamura, K. Takai
2018ChemElectroChem24 citations Open access
Semantic Scholar
Physiological and comparative proteomic characterization of Desulfolithobacter dissulfuricans gen. nov., sp. nov., a novel mesophilic, sulfur-disproportionating chemolithoautotroph from a deep-sea hydrothermal vent
Yurina Hashimoto, S. Shimamura, Akihiro Tame, S. Sawayama +3 more
2022Frontiers in Microbiology23 citations Open access
Semantic Scholar
Dual energy metabolism of the Campylobacterota endosymbiont in the chemosynthetic snail Alviniconcha marisindica
J. Miyazaki, T. Ikuta, Tomo-o Watsuji, Mariko Abe +5 more
2020The ISME Journal23 citations Open access
Semantic Scholar
Cultivation of previously uncultured microorganisms with a continuous-flow down-flow hanging sponge (DHS) bioreactor, using a syntrophic archaeon culture obtained from deep marine sediment as a case study
H. Imachi, M. Nobu, M. Miyazaki, E. Tasumi +5 more
2022Nature Protocols21 citations
Semantic Scholar
An Improved Method for Extracting Viruses From Sediment: Detection of Far More Viruses in the Subseafloor Than Previously Reported
D. Pan, Y. Morono, F. Inagaki, K. Takai
2019Frontiers in Microbiology21 citations Open access
Semantic Scholar
In situ electrosynthetic bacterial growth using electricity generated by a deep-sea hydrothermal vent
M. Yamamoto, Y. Takaki, Hiroyuki Kashima, Miwako Tsuda +3 more
2022The ISME Journal20 citations Open access
Semantic Scholar
Multispecies Populations of Methanotrophic Methyloprofundus and Cultivation of a Likely Dominant Species from the Iheya North Deep-Sea Hydrothermal Field
H. Hirayama, Y. Takaki, Mariko Abe, H. Imachi +11 more
2021Applied and Environmental Microbiology20 citations Open access
Semantic Scholar
Stable Abiotic Production of Ammonia from Nitrate in Komatiite-Hosted Hydrothermal Systems in the Hadean and Archean Oceans
M. Nishizawa, Takuya Saito, Akiko Makabe, Hisahiro Ueda +3 more
2021Minerals20 citations Open access
Semantic Scholar
Endosymbiont population genomics sheds light on transmission mode, partner specificity, and stability of the scaly-foot snail holobiont
Yi Lan, J. Sun, Chong Chen, Hao Wang +13 more
2022The ISME Journal19 citations Open access
Semantic Scholar
A Simple and Efficient RNA Extraction Method from Deep-Sea Hydrothermal Vent Chimney Structures
Hisashi Muto, Y. Takaki, M. Hirai, Sayaka Mino +3 more
2017Microbes and Environments18 citations Open access
Semantic Scholar
Liquid and supercritical CO2 as an organic solvent in Hadean seafloor hydrothermal systems: implications for prebiotic chemical evolution
T. Shibuya, K. Takai
2022Progress in Earth and Planetary Science17 citations Open access
Semantic Scholar
Lebetimonas natsushimae sp. nov., a novel strictly anaerobic, moderately thermophilic chemoautotroph isolated from a deep-sea hydrothermal vent polychaete nest in the Mid-Okinawa Trough.
Ryousuke Nagata, Y. Takaki, Akihiro Tame, T. Nunoura +5 more
2017Systematic and Applied Microbiology17 citations
Semantic Scholar
d-Lactate electrochemical biosensor prepared by immobilization of thermostable dye-linked d-lactate dehydrogenase from Candidatus Caldiarchaeum subterraneum.
T. Satomura, J. Hayashi, H. Sakamoto, T. Nunoura +6 more
2018Journal of Bioscience and Bioengineering15 citations
Semantic Scholar
Chemical Nature of Hydrothermal Fluids Generated by Serpentinization and Carbonation of Komatiite: Implications for H2‐Rich Hydrothermal System and Ocean Chemistry in the Early Earth
Hisahiro Ueda, T. Shibuya, Y. Sawaki, K. Shozugawa +2 more
2021Geochemistry Geophysics Geosystems14 citations Open access
Semantic Scholar
Biogeochemical Implications of N2O-Reducing Thermophilic Campylobacteria in Deep-Sea Vent Fields, and the Description of Nitratiruptor labii sp. nov.
Muneyuki Fukushi, Sayaka Mino, Hirohisa Tanaka, S. Nakagawa +2 more
2020iScience14 citations Open access
Semantic Scholar
Cool, alkaline serpentinite formation fluid regime with scarce microbial habitability and possible abiotic synthesis beneath the South Chamorro Seamount
S. Kawagucci, J. Miyazaki, Y. Morono, J. Seewald +2 more
2018Progress in Earth and Planetary Science14 citations Open access
Semantic Scholar
FTIR microspectroscopy of carbonaceous matter in ~ 3.5 Ga seafloor hydrothermal deposits in the North Pole area, Western Australia
M. Igisu, Y. Ueno, K. Takai
2018Progress in Earth and Planetary Science13 citations Open access
Semantic Scholar
Weak hydrothermal carbonation of the Ongeluk volcanics: evidence for low CO2 concentrations in seawater and atmosphere during the Paleoproterozoic global glaciation
T. Shibuya, T. Komiya, K. Takai, S. Maruyama +1 more
2017Progress in Earth and Planetary Science13 citations Open access
Semantic Scholar
Salinarchaeum chitinilyticum sp. nov., a chitin-degrading haloarchaeon isolated from commercial salt.
H. Minegishi, Shigeaki Enomoto, A. Echigo, Y. Shimane +12 more
2017International Journal of Systematic and Evolutionary Microbiology12 citations Open access
Semantic Scholar
Structural comparisons of phosphoenolpyruvate carboxykinases reveal the evolutionary trajectories of these phosphodiester energy conversion enzymes
Y. Chiba, T. Miyakawa, Y. Shimane, K. Takai +2 more
2019Journal of Biological Chemistry11 citations Open access
Semantic Scholar
Unexpected discovery of a serpentinite‐hosted chemosynthetic ecosystem on Asùt Tesoru Seamount, Mariana Forearc
C. Chen, H. Watanabe, H. Sawada, H. Iwamoto +1 more
2023Marine Ecology10 citations Open access
Semantic Scholar
Metatranscriptomics by In Situ RNA Stabilization Directly and Comprehensively Revealed Episymbiotic Microbial Communities of Deep-Sea Squat Lobsters
Kaori Motoki, Tomo-o Watsuji, Y. Takaki, K. Takai +1 more
2020mSystems10 citations Open access
Semantic Scholar

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