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Scavenging system of reactive carbonyl species in photosynthesis organisms

Research Project

Project/Area Number 26450079
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant nutrition/Soil science
Research InstitutionKobe University

Principal Investigator

Miyake Chikahiro  神戸大学, 農学研究科, 准教授 (80294289)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords光合成 / 糖アルデヒド / 脂質アルデヒド / 呼吸 / 高CO2 / カルボニル / グリオキサラーゼ / シアノバクテリア / 植物
Outline of Final Research Achievements

We analyzed the toxicity and scavenging mechanism of reactive carbonyl species (RCS) in higher plants. We found that in photosynthesis reactive oxygen species (ROS) was produced, and ROS oxidized lipids in thylakoid membranes of chloroplasts to produce RCS. In the mutant of Arabidopsis which was deficient in the enzyme (alkenal-one oxidoreductase (AOR)) to scavenge RCS, RCS accumulated and decreased respiration rate. RCS oxidatively inactivated the degradation enzymes of starch. The inactivation of respiration was the reason why the mutant showed the retarded growth, compared to wild type. That is, AOR functioned to detoxify RCS which produced in illuminated chloroplasts.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (1 results)

All 2016

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results)

  • [Journal Article] Suppression of chloroplastic alkenal/one oxidoreductase represses the carbon catabolic pathway in Arabidopsis thaliana leaves during night2016

    • Author(s)
      Takagi, Ifuku, Ikeda, Inoue, Park, Tamoi, Inoue, Sakamoto, Saito, Miyake
    • Journal Title

      Plant Physiology

      Volume: 170 Issue: 4 Pages: 2024-2039

    • DOI

      10.1104/pp.15.01572

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant

URL: 

Published: 2014-04-04   Modified: 2021-01-27  

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