World's Best Scientists 2026 revealed!
Koichiro Shimomura

Koichiro Shimomura

D-Index & Metrics

Plant Science and Agronomy

D-Index
44
Citations
6353
World Ranking
3090
National Ranking
115

Koichiro Shimomura 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 Koichiro Shimomura sits on this spectrum.

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 publications 467+

This scientist: 251 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

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

Koichiro Shimomura 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 Koichiro Shimomura sits on this spectrum.

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: 44 D-Index — 55th percentile

55% of scientists in this discipline score the same or lower.

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

Overview

What is he best known for?

The fields of study he is best known for:

  • Botany
  • Enzyme
  • Gene

His primary areas of investigation include Botany, Agrobacterium, Hairy root culture, Transformation and Solanaceae. The concepts of his Botany study are interwoven with issues in Hyoscyamine, Tropane alkaloid and Horticulture. His Agrobacterium research is multidisciplinary, incorporating perspectives in Dry weight, Murashige and Skoog medium, Shoot and Biosynthesis.

His Hairy root culture research includes elements of Derivative, Xanthone and Swertia japonica. His Transformation research incorporates elements of Naphthoquinone and Lithospermum erythrorhizon. His work investigates the relationship between Solanaceae and topics such as Atropa belladonna that intersect with problems in clone, Hydroponics and Axenic.

His most cited work include:

  • Alkaloid production by hairy root cultures in Atropa belladonna (206 citations)
  • Shikonin production and secretion by hairy root cultures of Lithospermum erythrorhizon. (108 citations)
  • Strigolactone signaling regulates rice leaf senescence in response to a phosphate deficiency (106 citations)

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

Botany, Shoot, Agrobacterium, Horticulture and Tropane alkaloid are his primary areas of study. His work carried out in the field of Botany brings together such families of science as Auxin, Hairy root culture and Solanaceae. His study on Shoot also encompasses disciplines like

  • Basal shoot which intersects with area such as Carapichea ipecacuanha,
  • Cephaeline that connect with fields like Cephaelis ipecacuanha and Rubiaceae.

His Agrobacterium research integrates issues from Campanulaceae, Petiole and Murashige and Skoog medium. His Horticulture study combines topics in areas such as Mutant and Sucrose. His biological study spans a wide range of topics, including Atropa belladonna and Duboisia.

He most often published in these fields:

  • Botany (65.32%)
  • Shoot (21.39%)
  • Agrobacterium (17.34%)

What were the highlights of his more recent work (between 2005-2021)?

  • Botany (65.32%)
  • Shoot (21.39%)
  • Trace element (4.62%)

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

The scientist’s investigation covers issues in Botany, Shoot, Trace element, Horticulture and Gynura bicolor. His Botany research is multidisciplinary, incorporating elements of Isothiocyanate and Brassica rapa. Koichiro Shimomura has included themes like Cultivar, Plant physiology, Basal shoot, Endogeny and Auxin in his Shoot study.

His Endogeny research includes themes of Dwarfism, Molecular biology and Oryza sativa. The various areas that Koichiro Shimomura examines in his Horticulture study include Mutant and Flavonol synthase. His Biochemistry study integrates concerns from other disciplines, such as Stereochemistry and Cyanidin.

Between 2005 and 2021, his most popular works were:

  • Strigolactone signaling regulates rice leaf senescence in response to a phosphate deficiency (106 citations)
  • Supplementary Ultraviolet Radiation B Together with Blue Light at Night Increased Quercetin Content and Flavonol Synthase Gene Expression in Leaf Lettuce (Lactuca sativa L.) (49 citations)
  • Identification of Novel Poly-Acylated Anthocyanins from Gynura bicolor Leaves and Their Antioxidative Activity (26 citations)

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

  • Botany
  • Enzyme
  • Gene

His primary scientific interests are in Botany, Gynura bicolor, Biochemistry, Shoot and Oryza sativa. Many of his studies on Botany involve topics that are commonly interrelated, such as Horticulture. His Horticulture study incorporates themes from Cryopreservation and Tropane alkaloid.

His Biochemistry research incorporates themes from Cyanidin and Stereochemistry. Koichiro Shimomura combines subjects such as Plant stem, Cephaelis ipecacuanha, Basal shoot, Gibberellic acid and Auxin with his study of Shoot. The Oryza sativa study combines topics in areas such as Endogeny, Mutant and Phosphate.

Best Publications

  • Alkaloid production by hairy root cultures in Atropa belladonna

    Hiroshi Kamada;Nobuyuki Okamura;Motoyoshi Satake;Hiroshi Harada

  • Strigolactone signaling regulates rice leaf senescence in response to a phosphate deficiency

    Yusuke Yamada;Soya Furusawa;Seiji Nagasaka;Koichiro Shimomura

  • Shikonin production and secretion by hairy root cultures of Lithospermum erythrorhizon.

    Koichiro Shimomura;Hiroshi Sudo;Hitoshi Saga;Hiroshi Kamada

  • Rosmarinic acid and related phenolics in hairy root cultures of Ocimum basilicum

    Hiromi Tada;Yoshie Murakami;Toshio Omoto;Koichiro Shimomura

  • Cryopreservation of zygotic embryos of a Japanese terrestrial orchid (Bletilla striata) by vitrification.

    K. Ishikawa;K. Harata;M. Mii;A. Sakai

  • A male-associated DNA sequence in a dioecious plant, Cannabis sativa L.

    Koichi Sakamoto;Koichiro Shimomura;Yoshibumi Komeda;Hiroshi Kamada

  • Hernandulcin in hairy root cultures of Lippia dulcis

    Martina Sauerwein;Takeshi Yamazaki;Koichiro Shimomura

  • Lobetyolin and lobetyol from hairy root culture of Lobelia inflata

    Kanji Ishimaru;Hiroshi Yonemitsu;Koichiro Shimomura

  • Tropane alkaloids in the adventitious and hairy root cultures of solanaceous plants

    Koichiro Shimomura;Martina Sauerwein;Kanji Ishimaru

  • Supplementary Ultraviolet Radiation B Together with Blue Light at Night Increased Quercetin Content and Flavonol Synthase Gene Expression in Leaf Lettuce (Lactuca sativa L.)

    Masanori Ebisawa;Masanori Ebisawa;Kazuhiro Shoji;Kazuhiro Shoji;Mieko Kato;Koichiro Shimomura

  • Establishment of normal and transformed root cultures of Artemisia annua L. for artemisinin production.

    Mondher El Jaziri;Koichiro Shimomura;Kayo Yoshimatsu;Marie-Laure Fauconnier

  • Amarogentin, amaroswerin and four xanthones from hairy root cultures of Swertia japonica

    Kanji Ishimaru;Hiroshi Sudo;Motoyoshi Satake;Yuji Matsunaga

  • Phenolic constituents in tissue cultures of Phyllanthus niruri

    Kanji Ishimaru;Kayo Yoshimatsu;Takashi Yamakawa;Takashi Yamakawa;Hiroshi Kamada;Hiroshi Kamada

  • Two flavone 2′-glucosides from Scutellaria baicalensis

    Kanji Ishimaru;Kazutaka Nishikawa;Toshio Omoto;Iwao Asai

  • A novel dark-inducible protein, LeDI-2, and its involvement in root-specific secondary metabolism in Lithospermum erythrorhizon.

    Kazufumi Yazaki;Hideaki Matsuoka;Koichiro Shimomura;Andreas Bechthold

  • Lobeline production by hairy root culture of Lobelia inflata L.

    Hiroshi Yonemitsu;Koichiro Shimomura;Motoyoshi Satake;Shunji Mochida

  • Anthraquinone production by transformed root cultures of Rubia tinctorum: Influence of phytohormones and sucrose concentration

    Kyoko Sato;Takeshi Yamazaki;Emi Okuyama;Kunitoshi Yoshihira

  • Characteristics of growth and tropane alkaloid production in Hyoscyamus albus hairy roots transformed with Agrobacterium rhizogenes A4

    Philippe Christen;Toshio Aoki;Koichiro Shimomura

  • Genetic transformation of foxglove (Digitalis purpurea) by chimeric foreign genes and production of cardioactive glycosides.

    Kazuki Saito;Mami Yamazaki;Koichiro Shimomura;Kayo Yoshimatsu

  • Traits of Panax ginseng hairy roots after cold storage and cryopreservation.

    Kayo Yoshimatsu;Hiroko Yamaguchi;Koichiro Shimomura

  • Taxus sp. cell, tissue and organ cultures as alternative sources for taxoids production : a literature survey

    Mondher Jaziri;Abdesslam Zhiri;Yan-Wen Guo;Jean-Pierre Dupont

  • Transformation of opium poppy ( Papaver somniferum L.) with Agrobacterium rhizogenes MAFF 03-01724

    Kayo Yoshimatsu;Koichiro Shimomura

  • Variation of alkaloid productivity among several clones of hairy roots and regenerated plants ofAtropa belladonna transformed withAgrobacterium rhizogenes 15834.

    Toshio Aoki;Hideki Matsumoto;Youichi Asako;Yuji Matsunaga

Frequent Co-Authors

Hiroshi Kamada
Hiroshi Kamada University of Tsukuba
Shinjiro Yamaguchi
Shinjiro Yamaguchi Kyoto University
Jun-ichi Sawada
Jun-ichi Sawada University of Shizuoka
Takashi Tanaka
Takashi Tanaka Nagasaki University
Kazufumi Yazaki
Kazufumi Yazaki Kyoto University
Kaori Yoneyama
Kaori Yoneyama Ehime University
Mami Yamazaki
Mami Yamazaki Chiba University
Tadashi Matsunaga
Tadashi Matsunaga Tokyo University of Agriculture and Technology
Hector E. Flores
Hector E. Flores Pennsylvania State University

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