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2017 Fiscal Year Final Research Report

Do shifts of mycorrhizal fungi provide the evolution of parasitism in plants?

Research Project

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Project/Area Number 15H04417
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Biodiversity/Systematics
Research InstitutionNational Museum of Nature and Science, Tokyo

Principal Investigator

Yukawa Tomohisa  独立行政法人国立科学博物館, 植物研究部, グループ長 (50280524)

Co-Investigator(Kenkyū-buntansha) 大和 政秀  千葉大学, 教育学部, 准教授 (00571788)
辻田 有紀  佐賀大学, 農学部, 准教授 (80522523)
Co-Investigator(Renkei-kenkyūsha) TSUTSUMI Chie  独立行政法人国立科学博物館, 植物研究部, 研究主幹 (30455422)
Research Collaborator YAGAME Takahiro  
Project Period (FY) 2015-04-01 – 2018-03-31
Keywords菌根 / 進化 / 共生 / 寄生 / 従属栄養 / 光合成 / 植物 / 菌類
Outline of Final Research Achievements

We explored causes of the evolution of mycoheterotrophy in plants. First, changes of mycobionts were analyzed for several clades including both autotrophic and mycoheterotrophic plant species. The results showed that convergence towards particular mycobionts occurred in association with the evolution of mycoheterotrophy in plants. Further, the results of co-culture experiments between plants and their mycorrhizal fungi demonstrated that particular mycobionts can function as efficient nutrition suppliers. Consequently, validity of the hypothesis “mycoheterotrophy evolved in accordance with selection and adaptation of plants to fungi that can optimize nutrition process of host plants” was corroborated.

Free Research Field

植物系統分類学

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Published: 2019-03-29  

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