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2023 年度 実施状況報告書

The effects of leaf litter phytochemistry on the structure and functioning of microbial decomposer communities.

研究課題

研究課題/領域番号 22K15186
研究機関沖縄科学技術大学院大学

研究代表者

ARMITAGE David  沖縄科学技術大学院大学, 統合群集生態学ユニット, 准教授 (40912390)

研究期間 (年度) 2022-04-01 – 2025-03-31
キーワードphytochemistry / chemical ecology / botany / community ecology
研究実績の概要

We have characterised the phytochemistry of approximately 200 native plant species on Okinawa (primarily trees, shrubs, and ferns). This work remains ongoing. Initial proof-of-concept is focused on mangrove trees but will be expanded to all habitats once a reliable analytical pipeline is established.

Presentation of these results was carried out at two international meetings in the USA and Japan.

For the decomposition component of the project, we successfully ran a study to measure the decomposition rates of the plant Crotalaria juncea, either with or without the production of the toxic alkaloid monocrotaline. Preliminary results suggest that the presence of the alkaloid slows decomposition. Further confirmatory studies are underway, and the microbiome data will be sequenced soon.

現在までの達成度 (区分)
現在までの達成度 (区分)

2: おおむね順調に進展している

理由

Delays have only occurred due to the breakdown or replacement of machinery.

今後の研究の推進方策

We will focus on site surveys to link the chemical data we have collected to real tree communities. The participants responsible for data analysis will also be obtaining training in computational metabolomics in order to build an analytical pipeline that will facilitate compound identification, as this is currently the limiting step in progress.

次年度使用額が生じた理由

We require the additional funds for costs associated with reagents and storage for plant material. Some of this will also be used for DNA sequencing costs.

  • 研究成果

    (2件)

すべて 2024 2023

すべて 学会発表 (2件) (うち国際学会 1件)

  • [学会発表] Tree stress responses across biological scales: a case study in mangroves2024

    • 著者名/発表者名
      David Armitage
    • 学会等名
      Ecological Society of Japan Annual Conference
  • [学会発表] Tree stress responses across biological scales: a case study in mangroves2023

    • 著者名/発表者名
      David Armitage
    • 学会等名
      Ecological Society of America Annual Conference
    • 国際学会

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公開日: 2024-12-25  

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