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Creation of advanced phytoremediation on salinity soil using halophytes-microbe complex systems

Research Project

Project/Area Number 20KK0146
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 41:Agricultural economics and rural sociology, agricultural engineering, and related fields
Research InstitutionUniversity of Yamanashi

Principal Investigator

Kataoka Ryota  山梨大学, 大学院総合研究部, 准教授 (00635104)

Co-Investigator(Kenkyū-buntansha) 谷口 武士  鳥取大学, 乾燥地研究センター, 准教授 (10524275)
黄瀬 佳之  山梨大学, 大学院総合研究部, 准教授 (00818528)
Project Period (FY) 2020-10-27 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥18,720,000 (Direct Cost: ¥14,400,000、Indirect Cost: ¥4,320,000)
Fiscal Year 2023: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2021: ¥6,110,000 (Direct Cost: ¥4,700,000、Indirect Cost: ¥1,410,000)
Fiscal Year 2020: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords塩類集積土壌 / Mesembryanthemum属 / 植物内生細菌 / 植物成長促進効果 / ファイトレメディエーション / Brevundimonas diminuta / 植物生育促進細菌 / M. chilensis / Mesembryanthemum edule / 吸塩性 / 耐塩性 / 植物生育促進微生物 / 内生細菌 / 塩生植物 / Mesembryanthemum spp. / 内生微生物 / 耐塩性微生物
Outline of Research at the Start

土壌の塩類化が急速に拡大しているトルコ共和国において、塩生植物に内生する微生物の植物生長・吸塩促進効果を明らかにし、ファイトレメディエーションが抱える問題点を全て克服した、これまでにない新たなファイトレメディエーション技術の構築を目的としている。目的を達成するために、トルコで食用として利用できるMesembryanthemum edule (塩生植物)のマイクロバイオームと内生微生物の高塩環境適応戦略を解明し、植物-微生物複合系を利用した新たな浄化技術を創出する。また、塩浄化能を様々な環境下でシミュレーションし、ファイトレメディエーション適応可能範囲を明らかにする。

Outline of Final Research Achievements

Salt tolerance experiment were carried out using Mesembryanthemum chilensis and M. edule. M. chilensis was grown in an artificial climate chamber in Yamanashi University, and M. edule was grown in a glass greenhouse at Ankara University. M. chilensis grew vigorously up to a salt concentration of 100 mM, but showed rapid growth retardation when the salt concentration was 200 mM or higher. In contrast, M. edule grew well in Na-containing soil and grew without inhibition even at 600 mM. The endophytic bacteria also differed between M. chilensis and M. edule, with the diversity index being higher in M. chilensis. When the salt absorption coefficient was taken into account in the salt absorption estimation model, the salt absorption of M. chilensis could be accurately predicted regardless of the treatment area. It is considered necessary to clarify and model the growth promotion effect of salt in the future.

Academic Significance and Societal Importance of the Research Achievements

ファイトレメディエーションによる土壌修復は時間がかかるという問題点がある。しかし、植物生育促進内生細菌の利用で改善できる可能性を示した。Mesembryanthemum属植物3種を用いたが、M. chilensisやM. eduleでは植物成長を促進する効果的な菌株を選抜できたが、その応用までは達成できなかった。しかし、M. crystallinumについては有用内生細菌を選抜し、その効果も明らかにすることができた。本研究で選抜した植物内生細菌を活用し、Mesembryanthemum属植物の生育を促進することで吸塩能を高めることが出来ればファイトレメディエーションの弱点克服が期待できる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2023 2022 2021 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results) (of which Int'l Joint Research: 1 results) Book (3 results)

  • [Int'l Joint Research] アンカラ大学(トルコ)

    • Related Report
      2021 Research-status Report
  • [Journal Article] 植物-微生物複合系を利用した塩類集積土壌の浄化技術2022

    • Author(s)
      片岡 良太
    • Journal Title

      日本海水学会誌

      Volume: 76 Pages: 11-17

    • Related Report
      2021 Research-status Report
  • [Journal Article] Metabolomics Analyses Reveal Metabolites Affected by Plant Growth-Promoting Endophytic Bacteria in Roots of the Halophyte Mesembryanthemum crystallinum2021

    • Author(s)
      Kataoka Ryota、Akashi Mami、Taniguchi Takeshi、Kinose Yoshiyuki、Yaprak Ahmet、Turgay Oguz
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 22 Issue: 21 Pages: 11813-11813

    • DOI

      10.3390/ijms222111813

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The Research on Endophytic Microbial Community of Halophytic Plant and Its Application to Phytoremediation of Salinity Soils in Turkey2023

    • Author(s)
      Ryota KATAOKA, Oguz Can Turgay, Ahmet Emre Yaprak, Yoshiyuki KINOSE, Takeshi TANIGUCHI
    • Organizer
      GSS2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 塩類集積土壌のファイトレメディエーションモデル開発に向けた実験的研究2023

    • Author(s)
      黄瀬佳之,遠藤美玲,塚田康司,片岡良太
    • Organizer
      大気環境学会
    • Related Report
      2023 Annual Research Report
  • [Book] Use of Synthetic Ecology Approach in Exploring Plant Microbial Interactions Under Habitat-Imposed Stresses2023

    • Author(s)
      Ahmad Mahmood, Hande Bardak, Duygu Bozdoan, Taku Yamaguchi, Ali Hamed, Ryota Kataoka
    • Total Pages
      596
    • Publisher
      Springer
    • ISBN
      9789811677618
    • Related Report
      2023 Annual Research Report
  • [Book] New and Future Developments in Microbial Biotechnology and Bioengineering2022

    • Author(s)
      Waleed Asghar, Muhittin Onur Akca, Hanife Akca, Ommolbanin Jafari Tarf, Ryota Kataoka and Oguz Can Turgay
    • Total Pages
      562
    • Publisher
      Elsevier
    • ISBN
      9780323855822
    • Related Report
      2022 Research-status Report
  • [Book] Plant Stress Mitigators2022

    • Author(s)
      Ahmad Mahmood, Hande Bardak, Duygu Bozdoan, Taku Yamaguchi, Ali Hamed, Ryota Kataoka, and Oguz Can Turgay
    • Total Pages
      589
    • Publisher
      Springer
    • ISBN
      9789811677588
    • Related Report
      2021 Research-status Report

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Published: 2020-10-29   Modified: 2025-01-30  

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