Rchr
J-GLOBAL ID：200901093640783750   Update date: Sep. 29, 2025

Umezawa Toshiaki

ウメザワ トシアキ | Umezawa Toshiaki
Affiliation and department：
Kyoto University Research Institute for Sustainable Humanosphere, Laboratory of Biochemical Control

About Kyoto University Research Institute for Sustainable Humanosphere, Laboratory of Biochemical Control


Job title： Specially Appointed Professor
Research field  (1)： Wood science
Research keywords  (7)： Lignin metabolic engineering ,  リグニン生合成 ,  ノルリグナン生合成 ,  リグナン生合成 ,  Biosynthesis of Lignins ,  Biosynthesis of Norlignans ,  Biosynthesis of Lignans
Research theme for competitive and other funds  (33)：
  • 2022 - 2025 Elucidation of the mechanism for antitumor lignan biosynthesis based on integrated genome analysis
  • 2022 - 2025 Elucidation of the mechanism for antitumor lignan biosynthesis based on integrated genome analysis
  • 2020 - 2023 Impacts of lignin structural variations on the functions and properties of lignocellulose as studied with lignin-modified engineered plants
  • 2018 - 2022 Synthetic biology for antitumor lignan biosynthesis
  • 2016 - 2019 Biosynthesis and Bioengineering of flavonolignins: a new and unique component of grass lignins
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Papers (249)：
  • Pingping Ji, Osama A. Afifi, Senri Yamamoto, Yuriko Osakabe, Keishi Osakabe, Toshiaki Umezawa, Yuki Tobimatsu. Stacked mutations disrupting syringyl and p-coumaroylated lignin biosynthesis in rice result in lignin dominated by guaiacyl units: insights into grass-specific lignin monomer biosynthesis and polymerization mechanisms. 2025
  • Yuri Takeda-Kimura, Tetsuya Mori, Shiro Suzuki, Masahiro Sakamoto, Kazuki Saito, Ryo Nakabayashi, Yuki Tobimatsu, Toshiaki Umezawa. Altered development and lignin deposition in rice p-COUMAROYL ESTER 3-HYDROXYLASE loss-of-function mutants. The Plant Journal. 2025. 121. 5
  • Senri Yamamoto, Osama Ahmed Afifi, Lydia Pui Ying Lam, Yuri Takeda-Kimura, Yuriko Osakabe, Keishi Osakabe, Laura E. Bartley, Toshiaki Umezawa, Yuki Tobimatsu. Disruption of aldehyde dehydrogenase decreases cell wall-bound p-hydroxycinnamates and improves cell wall digestibility in rice. The Plant Journal. 2024
  • Supatmi, Lydia Pui Ying Lam, Senri Yamamoto, Osama A. Afifi, Pingping Ji, Yuriko Osakabe, Keishi Osakabe, Toshiaki Umezawa, Yuki Tobimatsu. Essential Yet Dispensable: The Role of CINNAMATE 4-HYDROXYLASE in Rice Cell Wall Lignification. bioRxiv (preprint). 2024
  • Reza Ramdan Rivai, Kiyoshi Yamazaki, Masaru Kobayashi, Yuki Tobimatsu, Tsuyoshi Tokunaga, Fujiwara Toru, Toshiaki Umezawa. Altered Lignin Accumulation in Sorghum Mutated in Silicon Uptake Transporter SbLsi1. Plant And Cell Physiology. 2024
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MISC (378)：
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Patents (3)：
  • 糖類の製造方法
  • リグナンメチル化酵素をコードする遺伝子およびその用途
  • リグナンメチル化酵素をコードする遺伝子およびその用途
Books (47)：
  • Sustainable Production and Utilization of Grass Biomass in Deteriorated Grasslands in Indonesia; In "The Climate-Energy-Land Nexus in Indonesia : Biofuel, REDD+ and biochar" (Akihisa Mori and Alin Halimatussadiah,Eds.)
    Routledge 2024
  • リグニン利活用のための最新技術動向
    シーエムシー出版 2020 ISBN:9784781314945
  • リグニン代謝工学によるバイオマス植物の育種
    2020
  • MYB-mediated regulation of lignin biosynthesis in grasses
    2020
  • 「Lignin Metabolic Engineering in Grasses for Primary Lignin Valorization」Lignin, 1, 30-41 (2020)
    2020
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Lectures and oral presentations  (140)：
  • 持続可能な開発のためのバイオマス活用
    (岐阜ジョイント・ディグリーWEBシンポジウム2020(オンライン) 2020)
  • 熱帯荒廃草原の植生回復によるバイオマスエネルギーとマテリアル生産
    (第11回ソルガムワークショップ(オンライン) 2020)
  • ソルガムのリグニン蓄積に関する遺伝解析について
    (第11回ソルガムワークショップ(オンライン) 2020)
  • Characterization of genome-edited rice mutants deficient in CINNAMATE 4- HYDROXYLASE genes toward understanding lignin biosynthesis in grasses
    (5th SATREPS conference 2020)
  • Takuji Miyamoto, Rie Takada, Yuri Takeda, Masaomi Yamamura, Yuki Tobimatsu, Shiro Suzuki, Wahyuni, Vincentia Esti Windiastri, Dwi Widyajayanti, Satya Nugroho, Masahiro Sakamoto, Toshiaki Umezawa
    (5th SATREPS conference 2020)
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Works (3)：
  • 抗腫瘍性リグナン生合成
    2003 -
  • リグニン生合成機構解明
    1999 -
  • Mechanisms of lignin biosynthesis
    1999 -
Education (4)：
  • 1980 - 1982 Graduate School, Kyoto University
  • - 1982 Graduate School, Kyoto University Graduate School, Division of Agriculture
  • 1976 - 1980 Kyoto University Faculty of Agriculture
  • - 1980 Kyoto University Faculty of Agriculture
Professional career (2)：
  • Doctor of Agriculture (Kyoto University)
  • Master of Agriculture (Kyoto University)
Work history (4)：
  • 2023 - 現在 Kyoto University
  • 2005 - 2023 Kyoto University
  • 1993 - 2005 Kyoto University
  • 1982 - 1992 Kyoto University, Instructor
Committee career (9)：
  • 2018/11 - 現在 The Lignin Society Board member
  • 2018/11 - 2023/06 The Lignin Society President
  • 2017/06 - 2023/06 日本木材学会 理事
  • 2016 - 2022 日本植物バイオテクノロジー学会 代議員
  • 2016 - 2017 日本農芸化学会 代議員
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Awards (3)：
  • 2024/08 - The Lignin Society The Lignin Society Award Biosynthesis and biodegradation of lignin and related compounds
  • 2021/09 - Japanese Society for Plant Biotechnology The JSPB Award for Distinguished Research Lignin metabolic engineering of grass biomass plants
  • 1992 - 日本木材学会賞
Association Membership(s) (9)：
The Lignin Society ,  Phytochemical Society of North America ,  日本植物バイオテクノロジー学会 ,  植物化学調節学会 ,  国際木材科学アカデミー ,  植物化学研究会 ,  日本質量分析学会 ,  日本農芸化学会 ,  日本木材学会
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