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Koh Iba

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
11959
World Ranking
14960
National Ranking
1060

Koh Iba 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 Koh Iba 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: 192 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Koh Iba 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 Koh Iba 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: 55 D-Index — 25th percentile

25% of scientists in this discipline score the same or lower.

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

Overview

Koh Iba is affiliated with Kyushu University in Japan and has contributed extensively to research in plant science and molecular biology. The primary research focus lies in agricultural and biological sciences with a substantial number of publications addressing various aspects of plant physiology and molecular mechanisms.

The main fields of study for Koh Iba include:

  • Agricultural and Biological Sciences
  • Biochemistry, Genetics and Molecular Biology

Subfields of study encompass:

  • Plant Science
  • Molecular Biology
  • Global and Planetary Change
  • Biochemistry
  • Cellular and Molecular Neuroscience

The topics covered in their work include:

  • Photosynthetic Processes and Mechanisms
  • Plant Stress Responses and Tolerance
  • Plant Molecular Biology Research
  • Plant nutrient uptake and metabolism
  • Plant Water Relations and Carbon Dynamics
  • Plant Micronutrient Interactions and Effects
  • Plant responses to elevated CO2

Koh Iba's recent papers reflect these interests and include:

  • Increased stomatal conductance induces rapid changes to photosynthetic rate in response to naturally fluctuating light conditions in rice, 2020, Plant Cell & Environment
  • Improved stomatal opening enhances photosynthetic rate and biomass production in fluctuating light, 2020, Journal of Experimental Botany
  • Enhanced NRT1.1/NPF6.3 expression in shoots improves growth under nitrogen deficiency stress in Arabidopsis, 2021, Communications Biology
  • Regulation of ppGpp Synthesis and Its Impact on Chloroplast Biogenesis during Early Leaf Development in Rice, 2022, Plant and Cell Physiology
  • Cuticle permeability is an important parameter for the trade-off strategy between drought tolerance and CO2 uptake in land plants, 2021, Plant Signaling & Behavior

The scientist frequently publishes in venues such as:

  • Plant and Cell Physiology
  • The Plant Journal
  • CYTOLOGIA
  • Plant Cell & Environment
  • Journal of Experimental Botany

Frequent co-authors in their research include:

  • Juntaro Negi
  • Atsushi Mabuchi
  • Keina Monda
  • Takumi Higaki
  • Wataru Yamori

Best Publications

  • ACCLIMATIVE RESPONSE TO TEMPERATURE STRESS IN HIGHER PLANTS: Approaches of Gene Engineering for Temperature Tolerance

    Koh Iba

  • CO2 regulator SLAC1 and its homologues are essential for anion homeostasis in plant cells

    Juntaro Negi;Osamu Matsuda;Takashi Nagasawa;Yasuhiro Oba

  • Trienoic Fatty Acids and Plant Tolerance of High Temperature

    Yuuki Murakami;Michito Tsuyama;Yoshichika Kobayashi;Hiroaki Kodama;Hiroaki Kodama

  • Regulation of Rice NADPH Oxidase by Binding of Rac GTPase to Its N-Terminal Extension

    Hann Ling Wong;Reinhard Pinontoan;Kokoro Hayashi;Ryo Tabata

  • Reconstitution of abscisic acid activation of SLAC1 anion channel by CPK6 and OST1 kinases and branched ABI1 PP2C phosphatase action.

    Benjamin Brandt;Dennis E. Brodsky;Shaowu Xue;Juntaro Negi

  • Cloning of a temperature-regulated gene encoding a chloroplast omega-3 desaturase from Arabidopsis thaliana.

    Susan Gibson;Vincent Arondel;Koh Iba;Chris Somerville

  • Genetic Enhancement of Cold Tolerance by Expression of a Gene for Chloroplast [omega]-3 Fatty Acid Desaturase in Transgenic Tobacco.

    Hiroaki Kodama;Tatsurou Hamada;Gorou Horiguchi;Mitsuo Nishimura

  • Arabidopsis HT1 kinase controls stomatal movements in response to CO2.

    Mimi Hashimoto;Juntaro Negi;Jared Young;Maria Israelsson

  • A gene encoding a chloroplast omega-3 fatty acid desaturase complements alterations in fatty acid desaturation and chloroplast copy number of the fad7 mutant of Arabidopsis thaliana.

    Koh Iba;S. Gibson;T. Nishiuchi;T. Fuse

  • CO2 Sensing and CO2 Regulation of Stomatal Conductance: Advances and Open Questions

    Mimi Hashimoto-Sugimoto;Juntaro Negi;Maria Israelsson-Nordström

  • Rice virescent3 and stripe1 encoding the large and small subunits of ribonucleotide reductase are required for chloroplast biogenesis during early leaf development.

    Soo Cheul Yoo;Sung Hwan Cho;Hiroki Sugimoto;Jinjie Li

  • Two maize genes encoding omega-3 fatty acid desaturase and their differential expression to temperature

    Thomas Berberich;Mariko Harada;Kazuyuki Sugawara;Hiroaki Kodama

  • Fatty Acid Desaturation during Chilling Acclimation Is One of the Factors Involved in Conferring Low-Temperature Tolerance to Young Tobacco Leaves

    Hiroaki Kodama;Gorou Horiguchi;Takumi Nishiuchi;Mitsuo Nishimura

  • Guard cell ABA and CO2 signaling network updates and Ca2+ sensor priming hypothesis.

    Maria Israelsson;Robert S Siegel;Jared Young;Mimi Hashimoto

  • Increased leaf photosynthesis caused by elevated stomatal conductance in a rice mutant deficient in SLAC1, a guard cell anion channel protein

    Kensuke Kusumi;Shoko Hirotsuka;Toshiharu Kumamaru;Koh Iba

  • Role of chloroplast trienoic fatty acids in plant disease defense responses.

    Takashi Yaeno;Osamu Matsuda;Koh Iba

  • A Dof Transcription Factor, SCAP1, Is Essential for the Development of Functional Stomata in Arabidopsis

    Juntaro Negi;Kosuke Moriwaki;Mineko Konishi;Ryusuke Yokoyama

  • The rice nuclear gene, VIRESCENT 2, is essential for chloroplast development and encodes a novel type of guanylate kinase targeted to plastids and mitochondria.

    Hiroki Sugimoto;Kensuke Kusumi;Ko Noguchi;Masahiro Yano

  • The virescent-2 mutation inhibits translation of plastid transcripts for the plastid genetic system at an early stage of chloroplast differentiation.

    Hiroki Sugimoto;Kensuke Kusumi;Yuzuru Tozawa;Junshi Yazaki

  • A Temperature-sensitive Mechanism That Regulates Post-translational Stability of a Plastidial ω-3 Fatty Acid Desaturase (FAD8) in Arabidopsis Leaf Tissues

    Osamu Matsuda;Hikaru Sakamoto;Tadafumi Hashimoto;Koh Iba

Frequent Co-Authors

Takumi Nishiuchi
Takumi Nishiuchi Kanazawa University
Julian I. Schroeder
Julian I. Schroeder University of California, San Diego
Shuichi Yanagisawa
Shuichi Yanagisawa University of Tokyo
Hikaru Satoh
Hikaru Satoh Kyushu University
Shigemi Seo
Shigemi Seo Institute of Agrobiological Sciences
Shoshi Kikuchi
Shoshi Kikuchi National Agriculture and Food Research Organization
Wataru Yamori
Wataru Yamori University of Tokyo
Seiichiro Hasezawa
Seiichiro Hasezawa University of Tokyo
Takuji Sasaki
Takuji Sasaki Tokyo University of Agriculture
Tomonobu Kusano
Tomonobu Kusano Tohoku University

External Links

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Best Scientists Citing Koh Iba

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Tsutomu Kawasaki

Tsutomu Kawasaki

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Publications: 26

Michael R. Blatt

Michael R. Blatt

University of Glasgow

Publications: 26

Toshinori Kinoshita

Toshinori Kinoshita

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Publications: 26

Yoshiyuki Murata

Yoshiyuki Murata

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Publications: 24

Kazuo Shinozaki

Kazuo Shinozaki

RIKEN

Publications: 24

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Shintaro Munemasa

Okayama University

Publications: 23

Zhong-Hua Chen

Zhong-Hua Chen

University of Adelaide

Publications: 23

Jianmin Wan

Jianmin Wan

Nanjing Agricultural University

Publications: 22

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Surinder P. Singh

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Publications: 22

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