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The stress signaling effect of allantoin and its molecular mechanism of action: a new avenue to plant ureide research

Research Project

Project/Area Number 19K06725
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44030:Plant molecular biology and physiology-related
Research InstitutionHiroshima University

Principal Investigator

Sakamoto Atsushi  広島大学, 統合生命科学研究科(理), 教授 (60270477)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsストレス応答 / 遺伝子発現 / 小胞体動態 / アブシシン酸 / ウレイド / プリン代謝 / シロイヌナズナ / 植物ホルモン / 小胞体 / ジャスモン酸 / ストレス / プライミング / 遺伝子活性化 / アラントイン / 低分子生理活性物質
Outline of Research at the Start

プリン体の分解中間体で代表的なウレイド化合物であるアラントインは,植物では長らく窒素栄養の貯蔵・輸送物質と認識されてきたが,乾燥などの過酷環境下で顕著に蓄積し,ストレスに対する植物の適応能力や耐性を高めることを示した。本研究では,このようなアラントインの生理作用がどのような仕組みで発揮されるのかを分子レベルで解明し,代謝中間体の蓄積という一見阻害的な生理現象に秘められた,動けない植物の巧妙な生存戦略の理解を目指す。

Outline of Final Research Achievements

We have shown that allantoin, a representative ureido compound that serves in nitrogen storage and transport in plants but accumulates under hostile environments, stimulates gene and subcellular responses involved in abiotic stress and related to abscisic acid. Increased allantoin levels caused dynamic changes in the endoplasmic reticulum system, which activated a specific hydrolytic enzyme localized there to generate abscisic acid from its physiologically inactive glucose conjugate. Furthermore, we suggested that the heterocyclic ring structure is critical for its action on these molecular and subcellular processes.

Academic Significance and Societal Importance of the Research Achievements

近年,既知の代謝化合物が有する別機能の発見が相次いでおり,特に植物では多様な低分子量の代謝物質が生理機能の調節や活性化に関わっていると推定される。植物生理におけるアラントインの役割が窒素栄養の有効利用に留まらず,ストレス応答の活性化を通じ環境適応にも関わることを示した本研究の成果は,代謝の多機能性の例証を通じ,固着性が故に代謝を機軸として植物が進化させてきた生存戦略の理解に貢献するものである。アラントインは安価で生物分解性に優れたファイトケミカルであり,植物環境応答のケミカルコントロールに適用可能なため,農業生産や作物栽培などへの応用が期待される。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (11 results)

All 2022 2021 2020 2019 Other

All Journal Article (6 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (2 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (2 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Genome editing with removable TALEN vectors harboring a yeast centromere and autonomous replication sequence in oleaginous microalga2022

    • Author(s)
      Kurita T, Iwai M, Moroi K, Okazaki K, Nomura S, Saito F, Maeda S, Takami A, Sakamoto A, Ohta H, Sakuma T,
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 2480-2480

    • DOI

      10.1038/s41598-022-06495-y

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] アラントイン ― 植物のストレス応答や耐性に関わる古くて新しい窒素代謝物2021

    • Author(s)
      坂本 敦
    • Journal Title

      アグリバイオ

      Volume: 53 Pages: 116-123

    • NAID

      40022590419

    • Related Report
      2021 Annual Research Report 2020 Research-status Report
  • [Journal Article] Efficient and multiplexable genome editing using Platinum TALENs in oleaginous microalga, Nannochloropsis oceanica NIES‐21452020

    • Author(s)
      Kurita T, Moroi K, Iwai M, Okazaki K, Shimizu S, Nomura S, Saito F, Maeda S, Takami A, Sakamoto A, Ohta H, Sakuma T, Yamamoto T
    • Journal Title

      Genes to Cells

      Volume: 25 Issue: 10 Pages: 695-702

    • DOI

      10.1111/gtc.12805

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Overexpression of BUNDLE SHEATH DEFECTIVE 2 improves the efficiency of photosynthesis and growth in Arabidopsis2020

    • Author(s)
      Busch Florian A., Tominaga Jun, Muroya Masato, Shirakami Norihiko..., Shimada Hiroshi
    • Journal Title

      The Plant Journal

      Volume: 102 Issue: 1 Pages: 129-137

    • DOI

      10.1111/tpj.14617

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamics of the leaf endoplasmic reticulum modulate β-glucosidase-mediated stress-activated ABA production from its glucosyl ester2020

    • Author(s)
      Yiping Han, Shunsuke Watanabe, Hiroshi Shimada & Atsushi Sakamoto
    • Journal Title

      Journal of Experimental Botany

      Volume: 71 Issue: 6 Pages: 2058-2071

    • DOI

      10.1093/jxb/erz528

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Arabidopsis BSD2 reveals a novel redox regulation of Rubisco physiology in vivo2020

    • Author(s)
      Jun Tominaga, Shunichi Takahashi, Atsushi Sakamoto & Hiroshi Shimada
    • Journal Title

      Plant Signaling & Behavior

      Volume: 15 Issue: 4 Pages: 1740873-1740873

    • DOI

      10.1080/15592324.2020.1740873

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Comparison of the effect of allantoin and allantoic acid on stress gene expression in Arabidopsis2020

    • Author(s)
      Taiki Fujibayashi, Yuhi Hashiguchi, Yiping Han, Hiroshi Shimada & Atsushi Sakamoto
    • Organizer
      第61回日本植物生理学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Biofuel production from marine microalgae Nannochloropsis2020

    • Author(s)
      1.Kumiko Okazaki, Takashi Yamamoto, Hiroyuki Ohta, Akihide Takami & Atsushi Sakamoto
    • Organizer
      International Symposium on Fuel and Energy 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 【研究成果】環境の変化に植物が素早く応答し適応するためのホルモン生成制御(所属研究機関HP掲載)

    • URL

      https://www.hiroshima-u.ac.jp/ilife/news/57346

    • Related Report
      2020 Research-status Report
  • [Remarks]

    • URL

      https://home.hiroshima-u.ac.jp/ahkkao/

    • Related Report
      2019 Research-status Report
  • [Patent(Industrial Property Rights)] 植物における高温ストレス向上剤,高温ストレス体制を向上させる方法,白化抑制剤,及びDREB2A遺伝子発現促進剤2019

    • Inventor(s)
      坂本 敦,他6名
    • Industrial Property Rights Holder
      国立大学法人広島大学,株式会社カネカ
    • Industrial Property Rights Type
      特許
    • Filing Date
      2019
    • Acquisition Date
      2019
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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