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Kazunori Okada

Kazunori Okada

University of Tokyo
Japan

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Plant Science and Agronomy 54 1713 1571 54 54 176 10053

Kazunori Okada publications per year

The chart shows the history of publications by Kazunori Okada between 1967 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Kazunori Okada published across 59 years, from 1967 to 2025, averaging 4.1 papers a year. Output peaked at 19 publications in 2019. 12 of the 241 publications appeared in the last two years.

No. of publications
5 10 15
Bar chart. Horizontal axis: year, 1967 to 2025. Vertical axis: number of publications, 0 to 19. Peak 19 publications in 2019. 1967: 2 publications 1968: 0 publications 1969: 1 publication 1970: 0 publications 1971: 0 publications 1972: 2 publications 1973: 0 publications 1974: 2 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 1 publication 1985: 2 publications 1986: 1 publication 1987: 2 publications 1988: 4 publications 1989: 2 publications 1990: 8 publications 1991: 3 publications 1992: 4 publications 1993: 0 publications 1994: 3 publications 1995: 3 publications 1996: 2 publications 1997: 7 publications 1998: 5 publications 1999: 1 publication 2000: 6 publications 2001: 2 publications 2002: 1 publication 2003: 0 publications 2004: 6 publications 2005: 3 publications 2006: 0 publications 2007: 5 publications 2008: 7 publications 2009: 5 publications 2010: 6 publications 2011: 5 publications 2012: 6 publications 2013: 9 publications 2014: 11 publications 2015: 9 publications 2016: 17 publications 2017: 9 publications 2018: 10 publications 2019: 19 publications 2020: 7 publications 2021: 11 publications 2022: 8 publications 2023: 12 publications 2024: 6 publications 2025: 6 publications
1967 2025

241 publications in total across all disciplines

View publications per year as a table
Kazunori Okada: publications per year, 1967 to 2025
Year Publications
1967 2
1968 0
1969 1
1970 0
1971 0
1972 2
1973 0
1974 2
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 1
1985 2
1986 1
1987 2
1988 4
1989 2
1990 8
1991 3
1992 4
1993 0
1994 3
1995 3
1996 2
1997 7
1998 5
1999 1
2000 6
2001 2
2002 1
2003 0
2004 6
2005 3
2006 0
2007 5
2008 7
2009 5
2010 6
2011 5
2012 6
2013 9
2014 11
2015 9
2016 17
2017 9
2018 10
2019 19
2020 7
2021 11
2022 8
2023 12
2024 6
2025 6
Total 241
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Kazunori Okada publication distribution in Plant Science and Agronomy in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Plant Science and Agronomy in 2026. The highlighted bar marks where Kazunori Okada sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 88 bars. Horizontal axis: publications, 36–40 to 467+. Vertical axis: number of scientists, 0 to 255. Most scientists, 255, have 111–115 publications. The last bar groups every scientist with 467 publications or more. The highlighted bar, 176–180 publications, is where this scientist sits. 36–40 publications: 2 scientists 41–45 publications: 7 scientists 46–50 publications: 40 scientists 51–55 publications: 58 scientists 56–60 publications: 60 scientists 61–65 publications: 107 scientists 66–70 publications: 130 scientists 71–75 publications: 153 scientists 76–80 publications: 191 scientists 81–85 publications: 199 scientists 86–90 publications: 206 scientists 91–95 publications: 218 scientists 96–100 publications: 226 scientists 101–105 publications: 227 scientists 106–110 publications: 247 scientists 111–115 publications: 255 scientists 116–120 publications: 253 scientists 121–125 publications: 233 scientists 126–130 publications: 219 scientists 131–135 publications: 201 scientists 136–140 publications: 194 scientists 141–145 publications: 176 scientists 146–150 publications: 157 scientists 151–155 publications: 147 scientists 156–160 publications: 151 scientists 161–165 publications: 159 scientists 166–170 publications: 137 scientists 171–175 publications: 128 scientists 176–180 publications: 126 scientists 181–185 publications: 98 scientists 186–190 publications: 114 scientists 191–195 publications: 100 scientists 196–200 publications: 90 scientists 201–205 publications: 71 scientists 206–210 publications: 98 scientists 211–215 publications: 70 scientists 216–220 publications: 86 scientists 221–225 publications: 61 scientists 226–230 publications: 58 scientists 231–235 publications: 53 scientists 236–240 publications: 64 scientists 241–245 publications: 39 scientists 246–250 publications: 46 scientists 251–255 publications: 51 scientists 256–260 publications: 36 scientists 261–265 publications: 44 scientists 266–270 publications: 35 scientists 271–275 publications: 30 scientists 276–280 publications: 33 scientists 281–285 publications: 35 scientists 286–290 publications: 36 scientists 291–295 publications: 26 scientists 296–300 publications: 26 scientists 301–305 publications: 31 scientists 306–310 publications: 30 scientists 311–315 publications: 21 scientists 316–320 publications: 29 scientists 321–325 publications: 14 scientists 326–330 publications: 15 scientists 331–335 publications: 15 scientists 336–340 publications: 17 scientists 341–345 publications: 15 scientists 346–350 publications: 12 scientists 351–355 publications: 17 scientists 356–360 publications: 18 scientists 361–365 publications: 12 scientists 366–370 publications: 11 scientists 371–375 publications: 6 scientists 376–380 publications: 6 scientists 381–385 publications: 11 scientists 386–390 publications: 9 scientists 391–395 publications: 10 scientists 396–400 publications: 8 scientists 401–405 publications: 4 scientists 406–410 publications: 9 scientists 411–415 publications: 11 scientists 416–420 publications: 4 scientists 421–425 publications: 7 scientists 426–430 publications: 4 scientists 431–435 publications: 3 scientists 436–440 publications: 5 scientists 441–445 publications: 8 scientists 446–450 publications: 6 scientists 451–455 publications: 7 scientists 456–460 publications: 5 scientists 461–465 publications: 6 scientists 466 publications: 2 scientists 467+ publications: 99 scientists
36–40 publications 467+

This scientist: 176 publications — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 467 publications or more.

View publications distribution as a table
Number of Plant Science and Agronomy scientists by publication count, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
Publications Scientists This scientist
36–40 2
41–45 7
46–50 40
51–55 58
56–60 60
61–65 107
66–70 130
71–75 153
76–80 191
81–85 199
86–90 206
91–95 218
96–100 226
101–105 227
106–110 247
111–115 255
116–120 253
121–125 233
126–130 219
131–135 201
136–140 194
141–145 176
146–150 157
151–155 147
156–160 151
161–165 159
166–170 137
171–175 128
176–180 126 176
181–185 98
186–190 114
191–195 100
196–200 90
201–205 71
206–210 98
211–215 70
216–220 86
221–225 61
226–230 58
231–235 53
236–240 64
241–245 39
246–250 46
251–255 51
256–260 36
261–265 44
266–270 35
271–275 30
276–280 33
281–285 35
286–290 36
291–295 26
296–300 26
301–305 31
306–310 30
311–315 21
316–320 29
321–325 14
326–330 15
331–335 15
336–340 17
341–345 15
346–350 12
351–355 17
356–360 18
361–365 12
366–370 11
371–375 6
376–380 6
381–385 11
386–390 9
391–395 10
396–400 8
401–405 4
406–410 9
411–415 11
416–420 4
421–425 7
426–430 4
431–435 3
436–440 5
441–445 8
446–450 6
451–455 7
456–460 5
461–465 6
466 2
467+ 99
Download as CSV

Kazunori Okada D-index placement in Plant Science and Agronomy in 2026

The chart shows the D-index (discipline H-index) distribution of Plant Science and Agronomy scientists ranked by Research.com in 2026. The highlighted bar marks where Kazunori Okada sits on this spectrum.

No. of scientists
50 100 150 200 250
Bar chart with 80 bars. Horizontal axis: D-Index, 30 to 109+. Vertical axis: number of scientists, 0 to 288. Most scientists, 288, have 34 D-Index. The last bar groups every scientist with 109 D-Index or more. The highlighted bar, 54 D-Index, is where this scientist sits. 30 D-Index: 200 scientists 31 D-Index: 236 scientists 32 D-Index: 253 scientists 33 D-Index: 283 scientists 34 D-Index: 288 scientists 35 D-Index: 240 scientists 36 D-Index: 246 scientists 37 D-Index: 243 scientists 38 D-Index: 247 scientists 39 D-Index: 229 scientists 40 D-Index: 232 scientists 41 D-Index: 230 scientists 42 D-Index: 228 scientists 43 D-Index: 219 scientists 44 D-Index: 193 scientists 45 D-Index: 164 scientists 46 D-Index: 158 scientists 47 D-Index: 143 scientists 48 D-Index: 131 scientists 49 D-Index: 127 scientists 50 D-Index: 122 scientists 51 D-Index: 122 scientists 52 D-Index: 110 scientists 53 D-Index: 102 scientists 54 D-Index: 98 scientists 55 D-Index: 79 scientists 56 D-Index: 85 scientists 57 D-Index: 88 scientists 58 D-Index: 91 scientists 59 D-Index: 62 scientists 60 D-Index: 61 scientists 61 D-Index: 59 scientists 62 D-Index: 54 scientists 63 D-Index: 61 scientists 64 D-Index: 59 scientists 65 D-Index: 58 scientists 66 D-Index: 41 scientists 67 D-Index: 49 scientists 68 D-Index: 39 scientists 69 D-Index: 32 scientists 70 D-Index: 40 scientists 71 D-Index: 47 scientists 72 D-Index: 38 scientists 73 D-Index: 28 scientists 74 D-Index: 29 scientists 75 D-Index: 28 scientists 76 D-Index: 22 scientists 77 D-Index: 21 scientists 78 D-Index: 25 scientists 79 D-Index: 26 scientists 80 D-Index: 19 scientists 81 D-Index: 16 scientists 82 D-Index: 12 scientists 83 D-Index: 16 scientists 84 D-Index: 14 scientists 85 D-Index: 11 scientists 86 D-Index: 17 scientists 87 D-Index: 13 scientists 88 D-Index: 10 scientists 89 D-Index: 12 scientists 90 D-Index: 18 scientists 91 D-Index: 16 scientists 92 D-Index: 16 scientists 93 D-Index: 17 scientists 94 D-Index: 12 scientists 95 D-Index: 8 scientists 96 D-Index: 9 scientists 97 D-Index: 9 scientists 98 D-Index: 11 scientists 99 D-Index: 12 scientists 100 D-Index: 5 scientists 101 D-Index: 8 scientists 102 D-Index: 4 scientists 103 D-Index: 11 scientists 104 D-Index: 5 scientists 105 D-Index: 9 scientists 106 D-Index: 7 scientists 107 D-Index: 4 scientists 108 D-Index: 8 scientists 109+ D-Index: 99 scientists
30 D-Index 109+

This scientist: 54 D-Index — 75th percentile

75% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 109 D-Index or more.

View D-Index distribution as a table
Number of Plant Science and Agronomy scientists by D-index, Research.com 2026 ranking edition. Based on 6,494 ranked scientists.
D-Index Scientists This scientist
30 200
31 236
32 253
33 283
34 288
35 240
36 246
37 243
38 247
39 229
40 232
41 230
42 228
43 219
44 193
45 164
46 158
47 143
48 131
49 127
50 122
51 122
52 110
53 102
54 98 54
55 79
56 85
57 88
58 91
59 62
60 61
61 59
62 54
63 61
64 59
65 58
66 41
67 49
68 39
69 32
70 40
71 47
72 38
73 28
74 29
75 28
76 22
77 21
78 25
79 26
80 19
81 16
82 12
83 16
84 14
85 11
86 17
87 13
88 10
89 12
90 18
91 16
92 16
93 17
94 12
95 8
96 9
97 9
98 11
99 12
100 5
101 8
102 4
103 11
104 5
105 9
106 7
107 4
108 8
109+ 99
Download as CSV

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

  • Purification and Identification of Naringenin 7-O-Methyltransferase, a Key Enzyme in Biosynthesis of Flavonoid Phytoalexin Sakuranetin in Rice

    Takafumi Shimizu;Fengqiu Lin;Morifumi Hasegawa;Kazunori Okada

  • 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

Frequent Co-Authors

Shuhei Yamaguchi
Shuhei Yamaguchi Shimane University
Masayasu Matsumoto
Masayasu Matsumoto Hiroshima University

External Links

Personal website of Kazunori Okada Google Scholar page

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Best Scientists Citing Kazunori Okada

Shuhei Yamaguchi

Shuhei Yamaguchi

Shimane University

Publications: 35

Kazuomi Kario

Kazuomi Kario

Jichi Medical University

Publications: 16

Kazuei Igarashi

Kazuei Igarashi

Chiba University

Publications: 15

Keiko Kashiwagi

Keiko Kashiwagi

Chiba Institute of Science

Publications: 14

Tien Yin Wong

Tien Yin Wong

Tsinghua University

Publications: 14

Kazuyuki Shimada

Kazuyuki Shimada

Nagoya University

Publications: 10

Monique M.B. Breteler

Monique M.B. Breteler

German Center for Neurodegenerative Diseases

Publications: 10

Charles DeCarli

Charles DeCarli

University of California, Davis

Publications: 9

Takayoshi Ohkubo

Takayoshi Ohkubo

Teikyo University

Publications: 9

Shigeto Yamawaki

Shigeto Yamawaki

Hiroshima University

Publications: 8

Perminder S. Sachdev

Perminder S. Sachdev

University of New South Wales

Publications: 8

W. T. Longstreth

W. T. Longstreth

University of Washington

Publications: 8

Ian J. Deary

Ian J. Deary

University of Edinburgh

Publications: 7

Hiroshi Fujita

Hiroshi Fujita

Gifu University

Publications: 7

Joanna M. Wardlaw

Joanna M. Wardlaw

University of Edinburgh

Publications: 7

Teri A. Manolio

Teri A. Manolio

National Institutes of Health

Publications: 7

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