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How do plants adjust their photosynthesis in response to fluctuating light environments in future climate

Research Project

Project/Area Number 21H02171
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 39020:Crop production science-related
Research InstitutionThe University of Tokyo

Principal Investigator

Yamori Wataru  東京大学, 大学院農学生命科学研究科(農学部), 准教授 (90638363)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2022: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords光合成 / 環境応答 / 気孔 / 電子伝達 / Rubisco / イネ / 光合成誘導 / 高CO2 / CO2 / 光阻害 / 変動光 / 地球温暖化 / Rubisco activase / 生産性 / 高温
Outline of Research at the Start

大気CO2の激増による温暖化が植物に与える影響を解明することは喫緊の課題である。また、野外環境において植物の受ける光強度は一日を通して常に変動しているため、気候変化が食料生産や炭素循環に及ぼす影響を明らかにするためには、実際の圃場に近い環境での実験が必要である。そこで、本申請課題では、光合成制御機構の統合的理解に基づき、近未来環境における変動光環境に対してイネの光合成速度を向上させることを目的とする。

Outline of Final Research Achievements

Photosynthetic responses to increases in atmospheric CO2 concentration and improvements in photosynthetic capacity to enhance crop productivity have been studied under the steady-state light environment with constant light intensity, but in the natural environments, light fluctuates drastically because of altering sun positions, cloud cover, leaf angle, and shadows due to canopy cover. Therefore, this project aims to elucidate the molecular mechanisms of various reactions that contribute to the enhancement of photosynthesis in the present and near-future expected environments. We have revealed that 1) modifications of electron-transfer system by introducing the Flavodiiron protein (Flv) gene, 2) modifications of Rubisco activase, an activator of Rubisco, and 3) modifications of stomatal response in response to variable light, has improved the photosynthesis under fluctuating light conditions.

Academic Significance and Societal Importance of the Research Achievements

バイオマス増大に向けての育種戦略を示すため、現在と近未来の環境において、光合成の包括的理解から光合成装置全体の最適化を目指す計画は革新的である。本申請課題は野外環境における光合成機能の強化に向けた基盤技術の確立に寄与し、植物にとって必須な “光”に対する植物の適応性を高める意義は大きいと言える。

Report

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

    (16 results)

All 2024 2023 2022 2021 Other

All Journal Article (12 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 12 results,  Open Access: 6 results) Remarks (4 results)

  • [Journal Article] Natural genetic variation in dynamic photosynthesis is correlated with stomatal anatomical traits in diverse tomato species across geographical habitats2024

    • Author(s)
      Yoshiyama Yugo、Wakabayashi Yu、Mercer Kristin L、Kawabata Saneyuki、Kobayashi Takayuki、Tabuchi Toshihito、Yamori Wataru
    • Journal Title

      Journal of Experimental Botany

      Volume: - Issue: 21 Pages: 6762-6777

    • DOI

      10.1093/jxb/erae082

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Raising root zone temperature improves plant productivity and metabolites in hydroponic lettuce production2024

    • Author(s)
      Hayashi Sota、Levine Christopher P.、Yu Wakabayashi、Usui Mayumi、Yukawa Atsuyuki、Ohmori Yoshihiro、Kusano Miyako、Kobayashi Makoto、Nishizawa Tomoko、Kurimoto Ikusaburo、Kawabata Saneyuki、Yamori Wataru
    • Journal Title

      Frontiers in Plant Science

      Volume: 15 Pages: 01-13

    • DOI

      10.3389/fpls.2024.1352331

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] From green to red: Urban heat stress drives leaf color evolution2023

    • Author(s)
      Fukano Yuya、Yamori Wataru、Misu Hayata、Sato Mitsuhiko P.、Shirasawa Kenta、Tachiki Yuuya、Uchida Kei
    • Journal Title

      Science Advances

      Volume: 9 Issue: 42 Pages: 3542-3542

    • DOI

      10.1126/sciadv.abq3542

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Controlling root zone temperature improves plant growth and pigments in hydroponic lettuce2023

    • Author(s)
      Levine Christopher P、Hayashi Sota、Ohmori Yoshihiro、Kusano Miyako、Kobayashi Makoto、Nishizawa Tomoko、Kurimoto Ikusaburo、Kawabata Saneyuki、Yamori Wataru
    • Journal Title

      Annals of Botany

      Volume: 132 Issue: 3 Pages: 455-470

    • DOI

      10.1093/aob/mcad127

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Improving plant heat tolerance through modification of Rubisco activase in C3 plants to secure crop yield and food security in a future warming world2022

    • Author(s)
      Qu Yuchen、Mueller-Cajar Oliver、Yamori Wataru
    • Journal Title

      Journal of Experimental Botany

      Volume: 74 Issue: 2 Pages: 591-599

    • DOI

      10.1093/jxb/erac340

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adaptation of plants to a high CO2 and high-temperature world2022

    • Author(s)
      Yamori Wataru、Ghannoum Oula
    • Journal Title

      Plant Molecular Biology

      Volume: 110 Issue: 4-5 Pages: 301-303

    • DOI

      10.1007/s11103-022-01310-8

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Optimum root zone temperature of photosynthesis and plant growth depends on air temperature in lettuce plants2022

    • Author(s)
      Yamori Namiko、Levine Christopher P.、Mattson Neil S.、Yamori Wataru
    • Journal Title

      Plant Molecular Biology

      Volume: not determined Issue: 4-5 Pages: 385-395

    • DOI

      10.1007/s11103-022-01249-w

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Towards improved dynamic photosynthesis in C3 crops by utilising natural genetic variation2022

    • Author(s)
      Sakoda Kazuma、Adachi Shunsuke、Yamori Wataru、Tanaka Yu
    • Journal Title

      Journal of Experimental Botany

      Volume: not determined Issue: 10 Pages: 3109-3121

    • DOI

      10.1093/jxb/erac100

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flavodiiron proteins enhance the rate of CO2 assimilation in Arabidopsis under fluctuating light intensity2022

    • Author(s)
      Basso Leonardo、Sakoda Kazuma、Kobayashi Ryouhei、Yamori Wataru、Shikanai Toshiharu
    • Journal Title

      Plant Physiology

      Volume: - Issue: 1 Pages: 375-387

    • DOI

      10.1093/plphys/kiac064

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Drought stress reduces crop carbon gain due to delayed photosynthetic induction under fluctuating light conditions2022

    • Author(s)
      Sakoda Kazuma、Taniyoshi Kazuki、Yamori Wataru、Tanaka Yu
    • Journal Title

      Physiologia Plantarum

      Volume: 174 Issue: 1 Pages: 1-15

    • DOI

      10.1111/ppl.13603

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Co-overproducing Rubisco and Rubisco activase enhances photosynthesis in the optimal temperature range in rice2021

    • Author(s)
      Suganami Mao、Suzuki Yuji、Tazoe Youshi、Yamori Wataru、Makino Amane
    • Journal Title

      Plant Physiology

      Volume: 185 Pages: 108-119

    • DOI

      10.1093/plphys/kiaa026

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Overexpression of both Rubisco and Rubisco activase rescues rice photosynthesis and biomass under heat stress2021

    • Author(s)
      Qu Yuchen、Sakoda Kazuma、Fukayama Hiroshi、Kondo Eri、Suzuki Yuji、Makino Amane、Terashima Ichiro、Yamori Wataru
    • Journal Title

      Plant, Cell & Environment

      Volume: 44 Issue: 7 Pages: 1-13

    • DOI

      10.1111/pce.14051

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Remarks] アンデス原産の野生種トマトから高い光合成能力を持つトマトを発見

    • URL

      https://www.a.u-tokyo.ac.jp/topics/topics_20240412-1.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 培養液を3℃加温するだけでレタスの収穫量アップ!

    • URL

      https://www.a.u-tokyo.ac.jp/topics/topics_20240416-1.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 都市の熱さで植物は赤く進化する

    • URL

      https://www.a.u-tokyo.ac.jp/topics/topics_20231023-1.html

    • Related Report
      2023 Annual Research Report
  • [Remarks] 地球温暖化に適応した生産性の高いイネを作り出すことに成功

    • URL

      https://www.a.u-tokyo.ac.jp/topics/topics_20210428-1.html

    • Related Report
      2021 Annual Research Report

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

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