World's Best Scientists 2026 revealed!
Kazunori Okada

Kazunori Okada

D-Index & Metrics

Biology and Biochemistry

D-Index
55
Citations
10224
World Ranking
15120
National Ranking
1068

Kazunori Okada 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 Kazunori Okada 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: 147 publications — 25th percentile

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

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

Kazunori Okada 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 Kazunori Okada 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

Kazunori Okada is affiliated with the University of Tokyo in Japan. Their research primarily spans the fields of Agricultural and Biological Sciences and Biochemistry, Genetics and Molecular Biology, with a particular focus on Plant Science, Molecular Biology, Ecology, Evolution, Behavior and Systematics, Insect Science, and Genetics.

The scientist has contributed to several topics within their research domain, including:

  • Insect-Plant Interactions and Control
  • Plant biochemistry and biosynthesis
  • Plant Parasitism and Resistance
  • Photosynthetic Processes and Mechanisms
  • Plant and animal studies
  • Bacterial Genetics and Biotechnology
  • Plant Stress Responses and Tolerance

Kazunori Okada has published extensively, with frequent contributions to venues such as:

  • bioRxiv (Cold Spring Harbor Laboratory)
  • Bioscience Biotechnology and Biochemistry
  • Applied and Environmental Microbiology
  • Plant Molecular Biology
  • Plant and Cell Physiology

Some of their recent papers include:

  • Genomic evidence for convergent evolution of gene clusters for momilactone biosynthesis in land plants, 2020, Proceedings of the National Academy of Sciences
  • Acetic-acid-induced jasmonate signaling in root enhances drought avoidance in rice, 2021, Scientific Reports
  • The rice wound-inducible transcription factor RERJ1 sharing same signal transduction pathway with OsMYC2 is necessary for defense response to herbivory and bacterial blight, 2021, Plant Molecular Biology
  • Genome Editing Reveals Both the Crucial Role of OsCOI2 in Jasmonate Signaling and the Functional Diversity of COI1 Homologs in Rice, 2022, Plant and Cell Physiology
  • Evolution of Labdane-Related Diterpene Synthases in Cereals, 2020, Plant and Cell Physiology

Collaborations have been an integral part of their work, with frequent co-authors including:

  • Hideaki Nojiri
  • Koji Miyamoto
  • Chiho Suzuki-Minakuchi
  • Keisuke Tomita
  • Tomonobu Toyomasu

Best Publications

  • Two LysM receptor molecules, CEBiP and OsCERK1, cooperatively regulate chitin elicitor signaling in rice

    Takeo Shimizu;Takuto Nakano;Daisuke Takamizawa;Yoshitake Desaki

  • WRKY76 is a rice transcriptional repressor playing opposite roles in blast disease resistance and cold stress tolerance

    Naoki Yokotani;Yuko Sato;Shigeru Tanabe;Tetsuya Chujo

  • Identification of a Biosynthetic Gene Cluster in Rice for Momilactones

    Kazuhiro Shimura;Atsushi Okada;Kazunori Okada;Yusuke Jikumaru

  • Biosynthesis, elicitation and roles of monocot terpenoid phytoalexins

    Eric A. Schmelz;Alisa Huffaker;James W. Sims;Shawn A. Christensen

  • Five geranylgeranyl diphosphate synthases expressed in different organs are localized into three subcellular compartments in Arabidopsis.

    Kazunori Okada;Takeshi Saito;Tsuyoshi Nakagawa;Makoto Kawamukai

  • Identification of rice Allene Oxide Cyclase mutants and the function of jasmonate for defence against Magnaporthe oryzae

    Michael Riemann;Ken Haga;Takafumi Shimizu;Kazunori Okada

  • Echinochloa crus-galli genome analysis provides insight into its adaptation and invasiveness as a weed.

    Longbiao Guo;Jie Qiu;Chuyu Ye;Gulei Jin

  • A rice fungal MAMP-responsive MAPK cascade regulates metabolic flow to antimicrobial metabolite synthesis

    Mitsuko Kishi-Kaboshi;Kazunori Okada;Leona Kurimoto;Shinya Murakami

  • Phytoalexin accumulation in the interaction between rice and the blast fungus.

    Morifumi Hasegawa;Ichiro Mitsuhara;Shigemi Seo;Takuya Imai

  • Jasmonates Induce Both Defense Responses and Communication in Monocotyledonous and Dicotyledonous Plants

    Kazunori Okada;Hiroshi Abe;Gen Ichiro Arimura

  • Involvement of the elicitor-induced gene OsWRKY53 in the expression of defense-related genes in rice.

    Tetsuya Chujo;Ryota Takai;Chiharu Akimoto-Tomiyama;Sugihiro Ando

  • Identification of the OsOPR7 gene encoding 12-oxophytodienoate reductase involved in the biosynthesis of jasmonic acid in rice.

    Tomoyuki Tani;Hiroyuki Sobajima;Kazunori Okada;Tetsuya Chujo

  • OsTGAP1, a bZIP transcription factor, coordinately regulates the inductive production of diterpenoid phytoalexins in rice

    Atsushi Okada;Kazunori Okada;Koji Miyamoto;Jinichiro Koga

  • Diterpenoid phytoalexin factor, a bHLH transcription factor, plays a central role in the biosynthesis of diterpenoid phytoalexins in rice

    Chihiro Yamamura;Emi Mizutani;Kazunori Okada;Hitoshi Nakagawa

  • Regulation of Microbe-Associated Molecular Pattern-Induced Hypersensitive Cell Death, Phytoalexin Production, and Defense Gene Expression by Calcineurin B-Like Protein-Interacting Protein Kinases, OsCIPK14/15, in Rice Cultured Cells

    Takamitsu Kurusu;Jumpei Hamada;Hiroshi Nokajima;Youichiro Kitagawa

  • Agrobacterium tumefaciens increases cytokinin production in plastids by modifying the biosynthetic pathway in the host plant

    Hitoshi Sakakibara;Hiroyuki Kasahara;Nanae Ueda;Mikiko Kojima

  • Characterization of CYP76M5-8 indicates metabolic plasticity within a plant biosynthetic gene cluster

    Qiang Wang;Matthew L. Hillwig;Kazunori Okada;Kohei Yamazaki

  • Polyprenyl diphosphate synthase essentially defines the length of the side chain of ubiquinone

    Kazunori Okada;Kengo Suzuki;Yasuhiro Kamiya;XuFen Zhu

  • OsWRKY28, a PAMP-responsive transrepressor, negatively regulates innate immune responses in rice against rice blast fungus.

    Tetsuya Chujo;Tetsuya Chujo;Koji Miyamoto;Takeo Shimogawa;Takafumi Shimizu;Takafumi Shimizu

  • Elicitor induced activation of the methylerythritol phosphate pathway toward phytoalexins biosynthesis in rice

    Atsushi Okada;Takafumi Shimizu;Kazunori Okada;Tomohisa Kuzuyama

Frequent Co-Authors

Hisakazu Yamane
Hisakazu Yamane Teikyo University
Hideaki Nojiri
Hideaki Nojiri University of Tokyo
Eiichi Minami
Eiichi Minami University of Tsukuba
Morifumi Hasegawa
Morifumi Hasegawa Ibaraki University
Yoko Nishizawa
Yoko Nishizawa National Agriculture and Food Research Organization
Makoto Kawamukai
Makoto Kawamukai Shimane University
Tomonobu Toyomasu
Tomonobu Toyomasu Yamagata University
Tsuyoshi Nakagawa
Tsuyoshi Nakagawa Shimane University
Naoto Shibuya
Naoto Shibuya Meiji University
Yuji Kamiya
Yuji Kamiya RIKEN Center for Sustainable Resource Science

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