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Studies on stabilization mechanism of soil organic matter by using perylenequinone pigments

Research Project

Project/Area Number 17K18154
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Plant nutrition/Soil science
Environmental dynamic analysis
Research InstitutionNihon University

Principal Investigator

KOBAYASHI Takayuki  日本大学, 生物資源科学部, 講師 (10551228)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsペリレンキノン / 土壌有機物 / 安定化機構 / 土壌有機物の安定化機構 / 存在形態 / 地球温暖化 / 土壌学 / 土壌圏現象
Outline of Final Research Achievements

We attempted to elucidate the stabilization mechanism of soil organic matter using perylenequinone pigments (PQs). We could obtain the following results:
1) The main component of PQs is DHPQ (4,9-dihydroxypelyrene-3,10-quinone), and we developed a quantitative method for the contents of DHPQ and DHPQ derivatives in soil.
2) It was revealed that DHPQ and DHPQ derivatives distribute in soils around the world. In addition, physicochemical form of PQs in buried horizon from volcanic ash soils (Andosols) may alter from in the humic acid fraction to in more stable humin fraction. Furthermore, it was suggested that PQs occur in buried soil (paleosol) for a long period of time with soil active aluminum.

Academic Significance and Societal Importance of the Research Achievements

土壌有機物(SOM) の安定化機構の解明は、地球環境の将来予測等にも繋がる学術的かつ社会的にも重要な研究課題であるが、SOMは複雑で多様な有機物の混合物であるため全容解明には至っていない。特定の有機物成分であるPQsを対象とした本研究は、SOMの多様性を軽減した研究と位置付けられる。本研究によりPQs色素の主要な化学構造の同定と定量法の確立が達成できた。さらに、DHPQは古土壌を含む世界の様々な土壌に広く分布することが明らかとなった。これは、SOM安定化機構の掌握においてPQs色素が世界中の土壌で活用可能であることを示唆しており、本研究の成果は学術的意義の高い内容であるものと考えている。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2019 2018 2017

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (6 results)

  • [Journal Article] Characterization of the perylenequinone pigments in Japanese Andosols and Cambisol2019

    • Author(s)
      Kobayashi T, Rasmussen C, Sumida H
    • Journal Title

      Soil Science and Plant Nutrition

      Volume: 65 Issue: 1 Pages: 1-10

    • DOI

      10.1080/00380768.2018.1536846

    • NAID

      210000012047

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 南九州累積性火山灰土壌の一般理化学性とその土壌分類2019

    • Author(s)
      岩下真理、小林孝行、井上弦、隅田裕明
    • Organizer
      日本ペドロジー学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 土壌中のペリレンキノン緑色色素の構造解析2019

    • Author(s)
      小林孝行、伊藤信靖、袴田航、隅田裕明
    • Organizer
      日本土壌肥料学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 日本および米国土壌におけるペリレンキノン色素の分布特性2018

    • Author(s)
      小林孝行、Dhakal Prakash、Rasmussen Craig、隅田裕明
    • Organizer
      日本土壌肥料学会
    • Related Report
      2018 Research-status Report
  • [Presentation] 米国土壌におけるペリレンキノン系色素の分布特性2018

    • Author(s)
      小林孝行、Prakash Dhakal、Craig Rasmussen、隅田裕明
    • Organizer
      日本ペドロジー学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 土壌中のペリレンキノン系緑色色素の分離精製とその化学構造特性2017

    • Author(s)
      小林孝行、袴田航、隅田裕明
    • Organizer
      日本土壌肥料学会
    • Related Report
      2017 Research-status Report
  • [Presentation] 富士黒土層を含む累積性黒ボク土断面におけるペリレンキノン系色素の分布特性2017

    • Author(s)
      小林孝行、隅田裕明
    • Organizer
      第四紀学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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