D-Index & Metrics Best Publications
Earth Science
Japan
2023

D-Index & Metrics D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines.

Discipline name D-index D-index (Discipline H-index) only includes papers and citation values for an examined discipline in contrast to General H-index which accounts for publications across all disciplines. Citations Publications World Ranking National Ranking
Earth Science D-index 75 Citations 17,744 365 World Ranking 414 National Ranking 5
Biology and Biochemistry D-index 79 Citations 20,733 359 World Ranking 2721 National Ranking 173

Research.com Recognitions

Awards & Achievements

2023 - Research.com Earth Science in Japan Leader Award

Overview

What is he best known for?

The fields of study he is best known for:

  • Bacteria
  • Enzyme
  • Ecology

His main research concerns Ecology, Epsilonproteobacteria, Hydrothermal vent, Phylogenetics and Archaea. His Ecology research incorporates elements of Environmental chemistry, Phylogenetic diversity, Deep sea and Ribosomal RNA. His studies in Epsilonproteobacteria integrate themes in fields like Enzyme assay, Pyruvate carboxylase, Sulfurimonas, Microbial population biology and Reductive tricarboxylic acid cycle.

Ken Takai works mostly in the field of Hydrothermal vent, limiting it down to topics relating to Mineralogy and, in certain cases, Methanogen and Chimney, as a part of the same area of interest. The study incorporates disciplines such as Evolutionary biology and Phylogenetic tree in addition to Phylogenetics. His Archaea research includes elements of Genome and Methane.

His most cited work include:

  • Rapid detection and quantification of members of the archaeal community by quantitative PCR using fluorogenic probes. (601 citations)
  • Biogeographical distribution and diversity of microbes in methane hydrate-bearing deep marine sediments on the Pacific Ocean Margin (524 citations)
  • The versatile ε-proteobacteria: key players in sulphidic habitats (522 citations)

What are the main themes of his work throughout his whole career to date?

Ken Takai mainly investigates Hydrothermal vent, Hydrothermal circulation, Geochemistry, Ecology and 16S ribosomal RNA. His Hydrothermal vent study combines topics in areas such as Deep sea, Oceanography and Epsilonproteobacteria. His Hydrothermal circulation research incorporates elements of Trough, Drilling, Seafloor spreading, Mineralogy and Seawater.

In his work, Environmental chemistry is strongly intertwined with Microbial population biology, which is a subfield of Geochemistry. The Ecology study which covers Archaea that intersects with Genome. In his study, Phylogenetics is strongly linked to Phylogenetic tree, which falls under the umbrella field of 16S ribosomal RNA.

He most often published in these fields:

  • Hydrothermal vent (23.75%)
  • Hydrothermal circulation (23.00%)
  • Geochemistry (19.50%)

What were the highlights of his more recent work (between 2016-2021)?

  • Geochemistry (19.50%)
  • Hydrothermal vent (23.75%)
  • Hydrothermal circulation (23.00%)

In recent papers he was focusing on the following fields of study:

His primary areas of study are Geochemistry, Hydrothermal vent, Hydrothermal circulation, Deep sea and Astrobiology. His research in Geochemistry tackles topics such as Carbonate which are related to areas like Petroleum seep. The concepts of his Hydrothermal vent study are interwoven with issues in Ecology, Sulfur, Botany, Strain and Epsilonproteobacteria.

His work in Ecology covers topics such as Chemosynthesis which are related to areas like Symbiosis. His studies in Sulfur integrate themes in fields like Thermophile and Mantle wedge. The study incorporates disciplines such as Natural, Early Earth, Sulfide minerals, Seawater and Archean in addition to Hydrothermal circulation.

Between 2016 and 2021, his most popular works were:

  • Isolation of an archaeon at the prokaryote–eukaryote interface (141 citations)
  • Isolation of an archaeon at the prokaryote–eukaryote interface (141 citations)
  • Comparative Genomic Analysis of the Class Epsilonproteobacteria and Proposed Reclassification to Epsilonbacteraeota (phyl. nov.) (137 citations)

In his most recent research, the most cited papers focused on:

  • Bacteria
  • Enzyme
  • Gene

Ken Takai focuses on Hydrothermal vent, Genome, Geochemistry, Genomics and Archaea. His biological study spans a wide range of topics, including Deep sea, Oceanography, Ecology, Gemmatimonadetes and Biological dispersal. The various areas that Ken Takai examines in his Ecology study include Nitrification, Nitrogen cycle and Soil microbiology.

His research in Geochemistry intersects with topics in Seawater, Paleontology, Hydrothermal circulation and Microbial genomics. His work deals with themes such as Evolutionary biology, Prokaryote, Phylogenetics, Lineage and Eukaryote, which intersect with Genomics. Ken Takai brings together Archaea and Microbial mat to produce work in his papers.

This overview was generated by a machine learning system which analysed the scientist’s body of work. If you have any feedback, you can contact us here.

Best Publications

Rapid detection and quantification of members of the archaeal community by quantitative PCR using fluorogenic probes.

Ken Takai;Koki Horikoshi.
Applied and Environmental Microbiology (2000)

804 Citations

Cell proliferation at 122°C and isotopically heavy CH4 production by a hyperthermophilic methanogen under high-pressure cultivation

Ken Takai;Kentaro Nakamura;Tomohiro Toki;Urumu Tsunogai.
Proceedings of the National Academy of Sciences of the United States of America (2008)

776 Citations

Biogeographical distribution and diversity of microbes in methane hydrate-bearing deep marine sediments on the Pacific Ocean Margin

Fumio Inagaki;Takuro Nunoura;Satoshi Nakagawa;Andreas Teske.
Proceedings of the National Academy of Sciences of the United States of America (2006)

719 Citations

The versatile ε-proteobacteria: key players in sulphidic habitats

Barbara J. Campbell;Annette Summers Engel;Megan L. Porter;Ken Takai.
Nature Reviews Microbiology (2006)

665 Citations

Genetic Diversity of Archaea in Deep-Sea Hydrothermal Vent Environments

Ken Takai;Koki Horikoshi.
Genetics (1999)

588 Citations

Microbial Communities Associated with Geological Horizons in Coastal Subseafloor Sediments from the Sea of Okhotsk

Fumio Inagaki;Masae Suzuki;Ken Takai;Hanako Oida.
Applied and Environmental Microbiology (2003)

529 Citations

Archaeal diversity in waters from deep South African gold mines.

Ken Takai;Duane P. Moser;Mary DeFlaun;Tullis C. Onstott.
Applied and Environmental Microbiology (2001)

435 Citations

Sulfurovum lithotrophicum gen. nov., sp. nov., a novel sulfur-oxidizing chemolithoautotroph within the e-Proteobacteria isolated from Okinawa Trough hydrothermal sediments

Fumio Inagaki;Ken Takai;Kenneth H. Nealson;Kenneth H. Nealson;Koki Horikoshi.
International Journal of Systematic and Evolutionary Microbiology (2004)

343 Citations

Distribution of archaea in a black smoker chimney structure.

Ken Takai;Tetsushi Komatsu;Fumio Inagaki;Koki Horikoshi.
Applied and Environmental Microbiology (2001)

340 Citations

Insights into the evolution of Archaea and eukaryotic protein modifier systems revealed by the genome of a novel archaeal group

Takuro Nunoura;Yoshihiro Takaki;Jungo Kakuta;Shinro Nishi.
Nucleic Acids Research (2011)

335 Citations

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