• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

The approach using lignin polymerization plant peroxidase to uncover the lignin-derived biological activity

Research Project

Project/Area Number 21K05711
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 40020:Wood science-related
Research InstitutionHiroshima University

Principal Investigator

Shigeto Jun  広島大学, 未来共創科学研究本部, リサーチ・アドミニストレータ― (70570852)

Co-Investigator(Kenkyū-buntansha) 堤 祐司  九州大学, 農学研究院, 教授 (30236921)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords植物ペルオキシダーゼ / リグニン / 抗酸化活性 / 人工リグニン / 生物活性 / 抗SOD様活性
Outline of Research at the Start

本研究は、(工業リグニンを起点とした従来のアプローチとは異なり、)リグニンモノマーを起点としたアプローチ、すなわち様々な生物活性を有するリグニンをin vitroで人工的に合成し、その活性構造、化合物を明らかにすることで、リグニンの有する生物活性が発現する機序解明の突破口を開く。さらに得られる知見(活性の種類、活性値、単離・製造法等)に基づき、ヘルスケア分野における利用方法の提案、確立を試みる。

Outline of Final Research Achievements

Lignins with various bioactivities will be artificially synthesized in vitro and their active structures and compounds will be elucidated to examine the mechanisms of lignin bioactivity expression. It was found that the polymerization product produced by using recombinant protein of CWPO-C, which can produce lignin-like polymerization, has superoxide dismutase (SOD)-like activity. Furthermore, when the scavenging capacity of four types of reactive oxygen species narrowly defined as “singlet oxygen,” “superoxide,” “hydrogen peroxide,” and “hydroxyl radical” was measured, it was shown to have the ability to scavenge all reactive oxygen species, indicating that it has at least antioxidant activity among the biological activities.

Academic Significance and Societal Importance of the Research Achievements

研究代表者はこれまでにリグニン重合に関与する植物ペルオキシダーゼを同定し、それら組み換えタンパクを用いて、リグニンモノマーから天然リグニンと分子量分布が似たリグニン様ポリマー/オリゴマーの合成に世界で初めて成功している。本研究によって、当該ポリマー/オリゴマーが抗酸化活性を有することが明らかとなり、リグニン様ポリマーの生物活性を解析することで天然リグニンの有する抗酸化活性の正体を追求するアプローチの有効性が示された。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (3 results)

All 2024 2023 2022

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (1 results)

  • [Journal Article] The Populus alba cationic cell-wall-bound peroxidase (CWPO-C) regulates plant growth, lignin content and composition in poplar2023

    • Author(s)
      Diego Alonso Yoshikay-Benitez, Yusuke Yokoyama, Kaori Ohira, Koki Fujita, Azusa Tomiie, Yoshio Kijidani, Jun Shigeto, Yuji Tsutsumi
    • Journal Title

      Journal of Wood Science

      Volume: 69 Issue: 1 Pages: 12-12

    • DOI

      10.1186/s10086-023-02086-1

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Populus alba cationic cell-wall-bound peroxidase (CWPO-C) regulates the plant growth and affects auxin concentration in Arabidopsis thaliana2022

    • Author(s)
      Diego Alonso Yoshikay-Benitez, Yusuke Yokoyama, Kaori Ohira, Koki Fujita, Azusa Tomiie, Yoshio Kijidani, Jun Shigeto, Yuji Tsutsumi
    • Journal Title

      PHYSIOLOGY AND MOLECULAR BIOLOGY OF PLANTS

      Volume: 28 (9) Issue: 9 Pages: 1671-1680

    • DOI

      10.1007/s12298-022-01241-0

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] CWPO-Cオーソログ、シロイヌナズナAtPrx71の植物成長調節機能2024

    • Author(s)
      周 子堯、坂井 志帆、山本 怜奈、藤田 弘毅、重藤 潤、堤 祐司
    • Organizer
      第74回日本木材学会大会
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi