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Shigeaki Harayama

Shigeaki Harayama

Chuo University
Japan

Award Badge
Biology and Biochemistry
Japan
2026

D-Index & Metrics

Biology and Biochemistry

D-Index
96
Citations
28558
World Ranking
1853
National Ranking
104

Shigeaki Harayama publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Shigeaki Harayama sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 316 publications — 81st percentile

81% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Shigeaki Harayama D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Shigeaki Harayama sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 96 D-Index — 91st percentile

91% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Research.com Recognitions

  • 2026 - Research.com Biology and Biochemistry in Japan Leader Award
  • 2025 - Research.com Biology and Biochemistry in Japan Leader Award
  • 2023 - Research.com Biology and Biochemistry in Japan Leader Award

Overview

Shigeaki Harayama is affiliated with Chuo University in Japan and has contributed to research primarily in the fields of Energy, Biochemistry, Genetics and Molecular Biology, and Environmental Science. Their work spans subfields including Renewable Energy, Sustainability and the Environment, Molecular Biology, Ecology, General Health Professions, and Physiology.

Their research focuses on topics such as algal biology and biofuel production, photosynthetic processes and mechanisms, microbial community ecology and physiology, magnetic and electromagnetic effects, light effects on plants, corrosion behavior and inhibition, and water treatment and disinfection.

Recent publications by Shigeaki Harayama include:

  • A method for the preparation of electrocompetent cells to transform unicellular green algae, Coccomyxa (Trebouxiophyceae, Chlorophyta) strains Obi and KJ (2020, Algal Research)
  • Development of a CRISPR/Cas9-mediated gene-editing method to isolate a mutant of the unicellular green alga Parachlorella kessleri strain NIES-2152 with improved lipid productivity (2024, Biotechnology for Biofuels and Bioproducts)
  • Nitrite as a causal factor for nitrate-dependent anaerobic corrosion of metallic iron induced by Prolixibacter strains (2021, MicrobiologyOpen)
  • Limited fatty-acid supply from the plastid and active catabolism of triacylglycerol prevent the accumulation of triacylglycerol in Coccomyxa sp. strain Obi grown under nitrogen-replete conditions (2022, Algal Research)
  • A truncated antenna mutant of the unicellular green alga Coccomyxa sp. strain Obi shows better biomass productivity than the wild-type strain under higher irradiance, at higher cell density, and in greater depth of culture (2023, Algal Research)

Frequent coauthors collaborating with Shigeaki Harayama include:

  • Yuki Kasai
  • Satsuki Takagi
  • S. Imamura
  • Shuhei Ota
  • Kotaro Ishii

The primary publication venues for their work are:

  • Algal Research
  • Biotechnology for Biofuels and Bioproducts
  • MicrobiologyOpen
  • Bioresource Technology Reports
  • Research Square

Best Publications

  • Biodegradation of high-molecular-weight polycyclic aromatic hydrocarbons by bacteria.

    Robert A. Kanaly;Shigeaki Harayama

  • PCR amplification and direct sequencing of gyrB genes with universal primers and their application to the detection and taxonomic analysis of Pseudomonas putida strains.

    S Yamamoto;S Harayama

  • Molecular mechanisms of genetic adaptation to xenobiotic compounds.

    J. R. Van Der Meer;W. M. De Vos;S. Harayama;A. J. B. Zehnder

  • Functional and Evolutionary Relationships Among Diverse Oxygenases

    S Harayama;M Kok;E L Neidle

  • Phylogeny of the genus Pseudomonas: intrageneric structure reconstructed from the nucleotide sequences of gyrB and rpoD genes.

    Satoshi Yamamoto;Hiroaki Kasai;Dawn L. Arnold;Robert W. Jackson

  • Phylogenetic analysis and taxonomic study of marine Cytophaga-like bacteria: proposal for Tenacibaculum gen. nov. with Tenacibaculum maritimum comb. nov. and Tenacibaculum ovolyticum comb. nov., and description of Tenacibaculum mesophilum sp. nov. and Tenacibaculum amylolyticum sp. nov.

    Makoto Suzuki;Yasuyoshi Nakagawa;Shigeaki Harayama;Satoshi Yamamoto

  • Petroleum Biodegradation in Marine Environments

    Shigeaki Harayama;Hideo Kishira;Yuki Kasai;Kazuaki Shutsubo

  • Microbial communities in oil-contaminated seawater.

    Shigeaki Harayama;Yuki Kasai;Akihiro Hara

  • Design and evaluation of PCR primers to amplify bacterial 16S ribosomal DNA fragments used for community fingerprinting.

    Kazuya Watanabe;Yumiko Kodama;Shigeaki Harayama

  • Physicochemical Properties and Biodegradability of Crude Oil

    Keiji Sugiura;Masami Ishihara;Toshitsugu Shimauchi;Shigeaki Harayama

  • Molecular detection, isolation, and physiological characterization of functionally dominant phenol-degrading bacteria in activated sludge

    Kazuya Watanabe;Maki Teramoto;Hiroyuki Futamata;Shigeaki Harayama

  • Bacteria Belonging to the Genus Cycloclasticus Play a Primary Role in the Degradation of Aromatic Hydrocarbons Released in a Marine Environment

    Yuki Kasai;Hideo Kishira;Shigeaki Harayama

  • Ignavibacterium album gen. nov., sp. nov., a moderately thermophilic anaerobic bacterium isolated from microbial mats at a terrestrial hot spring and proposal of Ignavibacteria classis nov., for a novel lineage at the periphery of green sulfur bacteria.

    Takao Iino;Koji Mori;Yoshihito Uchino;Tatsunori Nakagawa

  • Advances in the field of high-molecular-weight polycyclic aromatic hydrocarbon biodegradation by bacteria.

    Robert A. Kanaly;Shigeaki Harayama

  • Phylogenetic relationships of Pseudomonas putida strains deduced from the nucleotide sequences of gyrB, rpoD and 16S rRNA genes.

    Satoshi Yamamoto;Shigeaki Harayama

  • Interspecific variations in adhesive protein sequences of Mytilus edulis, M. galloprovincialis, and M. trossulus.

    K. Inoue;J. H. Waite;M. Matsuoka;S. Odo

  • Differentiation of Phylogenetically Related Slowly Growing Mycobacteria by Their gyrB Sequences

    Hiroaki Kasai;Takayuki Ezaki;Shigeaki Harayama

  • Bacterial aromatic ring-cleavage enzymes are classified into two different gene families.

    S Harayama;M Rekik

  • Predominant growth of Alcanivorax strains in oil-contaminated and nutrient-supplemented sea water

    Yuki Kasai;Hideo Kishira;Tetsuya Sasaki;Kazuaki Syutsubo

  • Molecular Characterization of Bacterial Populations in Petroleum-Contaminated Groundwater Discharged from Underground Crude Oil Storage Cavities

    Kazuya Watanabe;Kanako Watanabe;Yumiko Kodama;Kazuaki Syutsubo

Frequent Co-Authors

Kazuya Watanabe
Kazuya Watanabe Tokyo University of Pharmacy and Life Sciences
Norihiko Misawa
Norihiko Misawa Ishikawa Prefectural University
Kenneth N. Timmis
Kenneth N. Timmis Technische Universität Braunschweig
Ken-ichiro Suzuki
Ken-ichiro Suzuki Tokyo University of Agriculture
Akira Yokota
Akira Yokota Tohoku University
Amos Marc Bairoch
Amos Marc Bairoch Swiss Institute of Bioinformatics
Kensuke Furukawa
Kensuke Furukawa Beppu University
Yasuo Ohnishi
Yasuo Ohnishi University of Tokyo
Thilo Köhler
Thilo Köhler University of Geneva
Ellen L. Neidle
Ellen L. Neidle University of Georgia

External Links

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Best Scientists Citing Shigeaki Harayama

Kenneth N. Timmis

Kenneth N. Timmis

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Publications: 69

Dietmar H. Pieper

Dietmar H. Pieper

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Publications: 51

Kazuya Watanabe

Kazuya Watanabe

Tokyo University of Pharmacy and Life Sciences

Publications: 51

Jung-Hoon Yoon

Jung-Hoon Yoon

Sungkyunkwan University

Publications: 47

Víctor de Lorenzo

Víctor de Lorenzo

Spanish National Research Council

Publications: 45

Hideaki Nojiri

Hideaki Nojiri

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Publications: 39

Jizhong Zhou

Jizhong Zhou

University of Oklahoma

Publications: 37

Michail M. Yakimov

Michail M. Yakimov

National Research Council (CNR)

Publications: 37

Toshio Omori

Toshio Omori

Shibaura Institute of Technology

Publications: 37

Peter N. Golyshin

Peter N. Golyshin

Bangor University

Publications: 34

Ken-ichiro Suzuki

Ken-ichiro Suzuki

Tokyo University of Agriculture

Publications: 30

Gerben J. Zylstra

Gerben J. Zylstra

Rutgers, The State University of New Jersey

Publications: 29

Masao Fukuda

Masao Fukuda

Chubu University

Publications: 27

Akira Yokota

Akira Yokota

Tohoku University

Publications: 27

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Lindsay D. Eltis

University of British Columbia

Publications: 26

Dirk Springael

Dirk Springael

KU Leuven

Publications: 26

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