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Mechanism of loss of photosynthetic function during mycoheterotrophic evolution - analysis using Neottia (Orchidaceae)-

Research Project

Project/Area Number 18K06400
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 45030:Biodiversity and systematics-related
Research InstitutionNational Museum of Nature and Science, Tokyo

Principal Investigator

Yamashita Yumi  独立行政法人国立科学博物館, 植物研究部, 支援研究員 (30792543)

Co-Investigator(Kenkyū-buntansha) 遊川 知久  独立行政法人国立科学博物館, 植物研究部, グループ長 (50280524)
末次 健司  神戸大学, 理学研究科, 准教授 (70748839)
山下 俊之  奥羽大学, 薬学部, 教授 (90192400)
高木 大輔  東北大学, 農学研究科, JSPS特別研究員(PD) (80825654)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords菌従属栄養植物 / 光合成 / 安定同位体比 / 色素体構造 / 光合成関連遺伝子 / 光化学系II / 光阻害 / 一重項酸素 / パルス変調時間分解蛍光法
Outline of Final Research Achievements

Mycoheterotrophic plants, that acquire carbon compounds from symbiotic fungi, evolved from photosynthetic autotrophic plants. Although this evolutionary process has received attention in recent years, previous studies have focused only on fungal functions, and the evolution of the loss of photosynthetic function has not been elucidated. In this study, we used the genus Neottia (Orchidaceae) to elucidate the evolutional level of mycoheterotrophy. Then, we clarified for the first time the mechanisms how the photosynthetic function was lost during the evolution of mycoheterotrophy, using plant physiological methods such as photosynthetic oxygen production rate analysis and photosynthesis-related gene analysis.

Academic Significance and Societal Importance of the Research Achievements

光合成機能の研究は現在世界的に進行する地球温暖化による悪影響をいかに回避するかの観点からも注目を浴びているが、その機能喪失メカニズムの研究も健全な機能保全の解析と同様に重要である。菌従属栄養植物はその進化過程で光合成機能を喪失するが、喪失の過程は不明であった。本研究は菌従属栄養植物カイサカネランを植物生理学的に解析し、光合成機能喪失の過程を初めて明らかにした点で意義深いものである。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (10 results)

All 2020 2019 2018

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] The mycorrhizal community of the epiphytic orchid Thrixspermum japonicum is strongly biased toward a single Ceratobasidiaceae fungus, despite a wide range of fungal partners2020

    • Author(s)
      Rammitsu Kento、Yukawa Tomohisa、Yamashita Yumi、Isshiki Shiro、Ogura‐Tsujita Yuki
    • Journal Title

      American Journal of Botany

      Volume: 107 Issue: 12 Pages: 1654-1662

    • DOI

      10.1002/ajb2.1575

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Physisporinus is an important mycorrhizal partner for mycoheterotrophic plants: Identification of mycorrhizal fungi of three Yoania species2020

    • Author(s)
      Yamashita Yumi、Kinoshita Akihiko、Yagame Takahiro、Ogura-Tsujita Yuki、Yokoyama Jun、Yukawa Tomohisa
    • Journal Title

      Mycoscience

      Volume: 61 Issue: 5 Pages: 219-225

    • DOI

      10.1016/j.myc.2020.05.003

    • NAID

      40022362990

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Herbarium specimens reveal the history and distribution of seed-feeding fly infestation in native Japanese orchids.2020

    • Author(s)
      Yamashita, Y., Y. Ogura-Tsujita, M. Tokuda and T. Yukawa.
    • Journal Title

      Bulletin of the National Museum of Nature and Science, Series B,

      Volume: 46 Pages: 119-127

    • NAID

      40022359243

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] クヌギタケ科及びホウライタケ科とオニノヤガラ属植物の共生発芽2020

    • Author(s)
      辻田有紀・大原直人・島崎茜・蘭光健人 ・山下由美・遊川知久
    • Organizer
      日本菌学会第64回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] ラン科サカネラン属の種子形成過程の多様化2020

    • Author(s)
      山下由美・西村悟郎・平山裕美子・堤千絵・黒沢高秀・遊川知久
    • Organizer
      日本植物学会第84回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Clonal Structure of the largest wild and ex situ conserved populations of Cypripedium japonicum Thunb. (Orchidaceae) in Japan.2020

    • Author(s)
      Yumi YAMASHITA, Natsuki SATOH, Takahide KUROSAWA, Shingo KANEKO, and Tomohisa YUKAWA.
    • Organizer
      23rd World Orchid Conference.
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 緑色菌従属栄養植物カイサカネランの色素体構造2019

    • Author(s)
      山下由美、高木大輔、池田健一、末次健司、黒沢高秀、遊川知久
    • Organizer
      日本植物学会第83回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Low copy nuclear gene (Xdh) sequences reveal at least five independent evolutions of mycoheterotrophy in tribe Neottieae.2018

    • Author(s)
      Yumi Yamashita, Felix Lallemand, Akihiko Kinoshita, Yuki Ogura-Tsujita, Takahide Kurosawa, Marc-Andre Selosse, Tomohisa Yukawa
    • Organizer
      6th International Orchid Workshop
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 緑色菌従属栄養植物カイサカネランの光合成機能の検証2018

    • Author(s)
      山下由美,高木大輔,Felix Lallemand,末次健司,Marc-Andre Selosse,黒沢高秀,遊川知久
    • Organizer
      日本植物学会第82回大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ラン科サカネラン属の菌従属栄養性と光合成機能の進化2018

    • Author(s)
      木下晃彦,山下由美,辻田有紀,黒沢高秀,Felix Lallemand,Marc-Andre Selosse,遊川知久
    • Organizer
      日本植物学会第82回大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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