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2008 Fiscal Year Final Research Report

Reconstruction of marine nitrogen cycle by compound-specific stable nitrogen isotope analysis of orga nic compounds

Research Project

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Project/Area Number 19840054
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Geochemistry/Astrochemistry
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

CHIKARAISHI Yoshito  Japan Agency for Marine-Earth Science and Technology, 地球内部変動研究センター, 研究員 (50455490)

Project Period (FY) 2007 – 2008
Keywords窒素同位体比 / アミノ酸,クロロフィル / クロロフィル / マレイミド / 古海洋 / 窒素サイクル
Research Abstract

堆積物や生物殻体(貝殻や骨)に含まれるアミノ酸・クロロフィルの安定窒素同位体比(15_N/14_N)は,過去の地球環境の窒素サイクルを知り得る唯一のツールとして期待されている。
本研究では,海洋堆積岩(数千万年前)・海洋堆積物(数百万年前~現在)・生物化石(数万年~現在)・ホルマリン固定生物(数十年前~現在)・貝殻(数年前~現在)などの様々な試料に対し本解析法を適用し,本手法が様々なケースに広く利用可能であることを証明した。

  • Research Products

    (4 results)

All 2009 2008 2007 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (2 results)

  • [Journal Article] Determination of aquatic food-web structure based on compound-specific nitrogen isotopic composition of amino acids2009

    • Author(s)
      Y. Chikaraishi, N.O. Ogawa, Y. Kashiyama, Y. Takano, H. Suga, A. Tomitani, H. Miyashita, H. Kitazato, N. Ohkouchi
    • Journal Title

      Limnology and Oceanography Methods

      Pages: (in press)

    • Peer Reviewed
  • [Journal Article] A compound-specific stable nitrogen isotopic composition of tetrapyrroles

    • Author(s)
      Y. Chikaraishi, Y. Kashiyama, N.O. Ogawa, H. Kitazato, M, Satoh, S. Nomoto, N, Ohkouchi
    • Journal Title

      Organic Geochemistry 39

      Pages: 510-520

    • Peer Reviewed
  • [Presentation] アミノ酸の窒素同位体比を用いた食物連鎖網解析2008

    • Author(s)
      力石嘉人
    • Organizer
      日本地球化学会年会
    • Place of Presentation
      東京大学
    • Year and Date
      2008-09-18
  • [Presentation] Chlorophyll derivatives in the sediment: evaluation of their sources and transformation processes based on natural H, C, and N isotope evidence2007

    • Author(s)
      Y. Chikaraishi
    • Organizer
      7~<th> International Conference on Tetrapyrrole Photoreceptors in Photosynthetic Organisms
    • Place of Presentation
      Kyoto
    • Year and Date
      2007-12-11

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Published: 2010-06-10   Modified: 2016-04-21  

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