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Decomposition of tree fine roots and nutrient dynamics in relation to symbiotic microbes

Research Project

Project/Area Number 22380083
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Forest science
Research InstitutionThe University of Tokyo

Principal Investigator

NARA Kazuhide  東京大学, 新領域創成科学研究科, 准教授 (60270899)

Co-Investigator(Renkei-kenkyūsha) TANAKA Megumi  東京大学, 大学院・新領域創成科学研究科, 特任研究員 (40401301)
Project Period (FY) 2010-04-01 – 2014-03-31
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥16,510,000 (Direct Cost: ¥12,700,000、Indirect Cost: ¥3,810,000)
Fiscal Year 2013: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2012: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2011: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywords物質循環 / 菌根 / 分解 / 土壌 / 菌根菌
Research Abstract

Fine roots of trees are mostly colonized by mycorrhizal fungi. Due to the short turnover periods of mycorrhizal root tips, annual organic input into soil from mycorrhizal roots exceeds the amount of above-ground leaf litter. But, the decomposition process of mycorrhizal roots is largely unknown. In this study, we buried mesh-bags containing mycorrhizal roots under forest floor and monitored decomposition processes over two years. We found that the decomposition of mycorrhizal roots was far slower than that of leaf materials. A model estimated that nearly 20 years would be required for 95% decomposition of mycorrhizal roots. In contrast to the decrease in total dry mass and C amount during decomposition, N amount significantly increased even at the end of the monitoring period, probably due to the colonization of nitrogen rich fungi and bacteria. We also identified bacteria and fungi that were responsible for the decomposition of mycorrhizal roots.

Report

(5 results)
  • 2013 Annual Research Report   Final Research Report ( PDF )
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (44 results)

All 2014 2013 2012 2011 2010 Other

All Journal Article (20 results) (of which Peer Reviewed: 16 results) Presentation (16 results) (of which Invited: 2 results) Book (7 results) Remarks (1 results)

  • [Journal Article] Genet dynamics and ecological functions of the pioneer ectomycorrhizal fungi Laccaria amethystina and Laccaria laccata in a volcanic desert on Mount Fuji2014

    • Author(s)
      Wadud MA, Nara K, Lian C, Ishida TA, Hogetsu T
    • Journal Title

      Mycorrhizal

      Volume: (in press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] The mid-domain effect in ectomycorrhizal fungi : range overlap along an elevation gradient on Mount Fuji, Japan2014

    • Author(s)
      Miyamoto Y, Nakano T, Hattori M, Nara K
    • Journal Title

      The ISME Journal

      Volume: (in press)

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] 木を育て,森を生み出す微生物「菌根菌」2014

    • Author(s)
      奈良一秀
    • Journal Title

      森林科学

      Volume: 70 Pages: 31-34

    • NAID

      110009823861

    • Related Report
      2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] 野外菌根から得られた菌根圏バクテリアが培養菌糸成長に及ぼす影響2014

    • Author(s)
      田中恵・奈良一秀
    • Journal Title

      関東森林研究

      Volume: 65 Pages: 123-126

    • Related Report
      2013 Annual Research Report 2013 Final Research Report
    • Peer Reviewed
  • [Journal Article] Genet dynamics and ecological functions of the pioneer ectomycorrhizal fungi Laccaria amethystina and Laccaria laccata in a volcanic desert on Mount Fuji2014

    • Author(s)
      Wadud MA, Nara K, Lian C, Ishida TA, Hogetsu T
    • Journal Title

      Mycorrhiza

      Volume: in press Issue: 7 Pages: 551-563

    • DOI

      10.1007/s00572-014-0571-x

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 木を育て、森を生み出す微生物2014

    • Author(s)
      奈良一秀
    • Journal Title

      森林科学

      Volume: 70 Pages: 31-34

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The mid-domain effect in ectomycorrhizal fungi: range overlap along an elevation gradient on Mount Fuji, Japan. The ISME Journal2014

    • Author(s)
      Miyamoto Y, Nakano T, Hattori M, Nara K
    • Journal Title

      The ISME Journal

      Volume: in press Issue: 8 Pages: 1739-1746

    • DOI

      10.1038/ismej.2014.34

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Diversity and composition of tree species in mature stands along an altitudinal gradient on Mt. Fuji2013

    • Author(s)
      Miyamoto, Y., Nakano, T., Nara, K.
    • Journal Title

      Mount Fuji Research

      Volume: 7

    • NAID

      40019795255

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Historical biogeography and diversification of truffles in the Tuberaceae and their newly identified Southern hemisphere sister lineage2013

    • Author(s)
      Bonito, G.ほか
    • Journal Title

      Plos One

      Volume: 8 Issue: 1 Pages: e52765-e52765

    • DOI

      10.1371/journal.pone.0052765

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Extensive gene flow over Europe and possible speciation over Eurasia in the ectomycorrhizal basidiomycete Laccaria amethystina complex2012

    • Author(s)
      Vincenot, L., Nara, K. Sthultz, C. Labbé, J. Dubois, M.P., Tedersoo, L., Martin, F. Selosse, M.A.
    • Journal Title

      Molecular Ecology

      Volume: 21 Issue: 2 Pages: 281-299

    • DOI

      10.1111/j.1365-294x.2011.05392.x

    • Related Report
      2012 Annual Research Report 2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ectomycorrhizal fungal communities associated with Masson pine (Pinus massoniana Lamb.) in Pb-Zn mine sites of central south China2012

    • Author(s)
      Huang J, Nara K, Lian C, Zong K, Peng K, Xue S, Shen Z
    • Journal Title

      Mycorrhiza

      Volume: (Online first) Issue: 8 Pages: 589-602

    • DOI

      10.1007/s00572-012-0436-0

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Towards global patterns in the diversity and community structure of ectomycorrhizal fungi2012

    • Author(s)
      Tedersoo, L.ほか
    • Journal Title

      Molecular Ecology

      Volume: 21 Issue: 17 Pages: 4160-4170

    • DOI

      10.1111/j.1365-294x.2012.05602.x

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiple origins of sequestrate basidiomes within Entoloma inferred from molecular phylogenetic analyses2012

    • Author(s)
      Kinoshita, A., Sasaki, H., Nara, K.
    • Journal Title

      Fungal biology

      Volume: 116 Issue: 12 Pages: 1250-1262

    • DOI

      10.1016/j.funbio.2012.09.006

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 見えないところで樹木をつなぐ 「森を生み出すキノコのチカラ」2012

    • Author(s)
      奈良一秀
    • Journal Title

      自然保護

      Volume: 525 Pages: 40-42

    • Related Report
      2012 Annual Research Report
  • [Journal Article] Ectomycorrhizal fungal communities associated with Masson pine (Pinus massoniana Lamb.) in Pb-Zn mine sites of central south China2012

    • Author(s)
      Huang,J., Nara, K., Lian, C., Zong, K., Peng, K., Xue, S., Shen
    • Journal Title

      Mycorrhiza

      Volume: (in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Towards global patterns in the diversity and community structure of ectomycorrhizal fungi2012

    • Author(s)
      Tedersoo, L., Bahram, M., Toots, M., Diedhiou, A., Henkel, T., Kjoller, R., Morris, M., Nara, K., Nouhra, E., Peay, K., Polme, S.
    • Journal Title

      Molecular Ecology

      Volume: (in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 見えないところで樹木をつなぐ「森を生み出すキノコのチカラ」2012

    • Author(s)
      奈良一秀
    • Journal Title

      自然保護

      Volume: 525 Pages: 40-42

    • Related Report
      2011 Annual Research Report
  • [Journal Article] トリュフ2012

    • Author(s)
      奈良一秀
    • Journal Title

      科学

      Volume: 82 Pages: 35-35

    • Related Report
      2011 Annual Research Report
  • [Journal Article] Phylogeny and diversity of Japanese truffles (Tuber spp.) inferred from sequences of four nuclear loci2011

    • Author(s)
      Kinoshita, A., Sasaki, H., Nara, K.
    • Journal Title

      Mycologia

      Volume: 103

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] General latitudinal gradient of biodiversity is reversed in ectomycorrhizal fungi2010

    • Author(s)
      Tedersoo, L., Nara, K.
    • Journal Title

      New Phytologist

      Volume: 185 Pages: 351-354

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] アカマツ細根系の分解過程2014

    • Author(s)
      佐藤陽水・田中 恵・中野隆志・奈良一秀
    • Organizer
      第125回日本森林学会大会
    • Place of Presentation
      大宮ソニックシティー
    • Year and Date
      2014-03-29
    • Related Report
      2013 Final Research Report
  • [Presentation] アカマツ細根系の分解にともなうバクテリア群集2014

    • Author(s)
      田中 恵・佐藤陽水・中野隆志・奈良一秀
    • Organizer
      第125回日本森林学会大会
    • Place of Presentation
      大宮ソニックシティー
    • Year and Date
      2014-03-29
    • Related Report
      2013 Final Research Report
  • [Presentation] アカマツ細根系の分解過程2014

    • Author(s)
      佐藤陽水・田中 恵・中野隆志・奈良一秀
    • Organizer
      第125回日本森林学会大会
    • Place of Presentation
      大宮ソニックシティー
    • Related Report
      2013 Annual Research Report
  • [Presentation] アカマツ細根系の分解にともなうバクテリア群集2014

    • Author(s)
      田中 恵・佐藤陽水・中野隆志・奈良一秀
    • Organizer
      第125回日本森林学会大会
    • Place of Presentation
      大宮ソニックシティー
    • Related Report
      2013 Annual Research Report
  • [Presentation] 地中の菌根菌の多様性:熱帯や冷温帯の様々な森林を見て2013

    • Author(s)
      奈良一秀
    • Organizer
      日本菌学会関東支部シンポジウム
    • Place of Presentation
      国立科学博物館
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] トガサワラ林における外生菌根菌の埋土胞子群集2012

    • Author(s)
      村田政穂, 木下晃彦, 奈良一秀
    • Organizer
      森林学会第123回大会
    • Place of Presentation
      宇都宮大学
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] リボソームDNA塩基配列のメタ解析によるショウロ属のグローバルな多様性と進化2012

    • Author(s)
      木下晃彦, 佐々木廣海, 村田政穂, 奈良一秀
    • Organizer
      森林学会第123回大会
    • Place of Presentation
      宇都宮大学
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] トガサワラ実生に存在する外生菌根圏バクテリアの群集構造2012

    • Author(s)
      田中恵, Denise Brooks, 奈良一秀
    • Organizer
      森林学会第123回大会
    • Place of Presentation
      宇都宮大学
    • Year and Date
      2012-03-27
    • Related Report
      2011 Annual Research Report
  • [Presentation] 「きのこ」:隠れた森の主役2011

    • Author(s)
      奈良一秀
    • Organizer
      国際森林年シンポジウム「木を見ず"森"をみる~コミュニケーションと共生の視点から~」
    • Place of Presentation
      日本科学未来館(招待講演)
    • Year and Date
      2011-10-16
    • Related Report
      2011 Annual Research Report
  • [Presentation] トガサワラ林における樹木実生の菌根圏バクテリア2011

    • Author(s)
      田中恵, Brooks, D., 奈良一秀
    • Organizer
      日本森林学会第122回大会
    • Place of Presentation
      静岡大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] 富士山火山荒原における外生菌根菌の埋土胞子群集2011

    • Author(s)
      甲中元気, 村田政穂, 奈良一秀
    • Organizer
      日本森林学会第122回大会
    • Place of Presentation
      静岡大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] トガサワラ林の土壌中に存在する外生菌根菌の埋土胞子群集2011

    • Author(s)
      村田政穂, 木下晃彦, 田中元気, 奈良一秀
    • Organizer
      日本森林学会第122回大会
    • Place of Presentation
      静岡大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] 分子系統解析に基づくショウロ属とマツ科樹木の共進化2011

    • Author(s)
      木下晃彦, 佐々木廣海, 村田政穂, 奈良一秀
    • Organizer
      日本森林学会第123回大会
    • Place of Presentation
      静岡大学
    • Year and Date
      2011-03-27
    • Related Report
      2010 Annual Research Report
  • [Presentation] Ectomycorrhizal fungal communities in Japanese Douglas-fir forests

    • Author(s)
      Nara, K.
    • Organizer
      The 7th International Conference on Mycorrhiza
    • Place of Presentation
      Delhi, India
    • Related Report
      2012 Annual Research Report
    • Invited
  • [Presentation] 熱帯性スマトラマツ自然林における外生菌根菌群集

    • Author(s)
      奈良一秀, 南賢士郎, 村田政穂, 木下晃彦, Maman Turjaman, I Made Sudiana
    • Organizer
      日本森林学会 第124回大会
    • Place of Presentation
      岩手大学
    • Related Report
      2012 Annual Research Report
  • [Presentation] 標高傾度にそった外生菌根菌の多様性分布とその決定機構の解明

    • Author(s)
      宮本裕美子, 中野隆志, 奈良一秀
    • Organizer
      日本森林学会 第124回大会
    • Place of Presentation
      岩手大学
    • Related Report
      2012 Annual Research Report
  • [Book] 菌根:地面の下の隠れた主役. In 教養としての森林学2014

    • Author(s)
      奈良一秀
    • Publisher
      文英堂出版
    • Related Report
      2013 Final Research Report
  • [Book] 教養としての森林学(分担執筆)2014

    • Author(s)
      奈良一秀
    • Publisher
      文英堂出版
    • Related Report
      2013 Annual Research Report
  • [Book] 地下から森林を見つめ直す. In 「アジアの生物資源環境学」2013

    • Author(s)
      奈良一秀
    • Total Pages
      244
    • Publisher
      東京大学出版会
    • Related Report
      2013 Final Research Report
  • [Book] アジアの生物資源環境学(分担執筆)2013

    • Author(s)
      奈良一秀
    • Total Pages
      244
    • Publisher
      東京大学出版会
    • Related Report
      2013 Annual Research Report
  • [Book] 図説日本の樹木(分担執筆)2012

    • Author(s)
      奈良一秀
    • Total Pages
      200
    • Publisher
      朝倉書店
    • Related Report
      2012 Annual Research Report
  • [Book] 図説日本の樹木2012

    • Author(s)
      奈良一秀(分担執筆)
    • Total Pages
      200
    • Publisher
      朝倉書店
    • Related Report
      2011 Annual Research Report
  • [Book] 日経サイエンス2010年7月号2010

    • Author(s)
      奈良一秀
    • Publisher
      知られざるトリュフの世界
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://lbf.nenv.k.u-tokyo.ac.jp/contents/Nara_lab/Top.html

    • Related Report
      2013 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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