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微生物の移動分散と機能的多様性を考慮した陸域生態系モデルの構築:理論と実証

Research Project

Project/Area Number 11J00586
Research Category

Grant-in-Aid for JSPS Fellows

Allocation TypeSingle-year Grants
Section国内
Research Field Ecology/Environment
Research InstitutionKyoto University

Principal Investigator

潮 雅之  京都大学, 生態学研究センター, 特別研究員(PD)

Project Period (FY) 2011 – 2013
Project Status Completed (Fiscal Year 2013)
Budget Amount *help
¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 2013: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2012: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2011: ¥800,000 (Direct Cost: ¥800,000)
Keywords土壌微生物群集 / 移動分散過程 / CARD-FISH法 / 次世代シーケンサー / 移動分散 / 画像解析 / 蛍光顕微鏡 / 細菌 / 群集組成
Research Abstract

2013年度は、昨年度までに習得した蛍光顕微鏡を用いた定量的な微生物分析手法(CARD-FISH法)と、次世代シーケンサーを用いた網羅的な微生物分析手法を用いて、同一サンプルの土壌微生物群集を分析して「手法によるバイアス」を検討した。その結果、近年急速に広まっている次世代シーケンサーを用いた解析では、微生物の群集組成を定量的に把握できていないことが明らかになった。近年の土壌微生物学での次世代シーケンサーによる分析の隆盛を考慮すると、この事実は認識しておく必要がある。
また、重要な移動分散経路である空気中の微生物細胞の密度と群集組成を推定した。2013年5月から週1回の頻度で滋賀県大津市の二次林周辺で空気のサンプリングを行った(時間・労力・資金の都合上、当初予定していた野外操作実験をこの観測に置き換えた)。空気サンプリングは携帯型ポンプを用い、概ね10:00-15:00の間に行った。約1,000Lの空気を0.2μmのフィルターを用いて濾過し、フィルターの半分を微生物群集組成解析のためにDNA抽出用とし、もう半分を全細胞数計測のために固定サンプルとした。固定サンプルはDAPI染色を行った後、蛍光顕微鏡と自らが開発した画像解析プログラムを用いて、全細胞数を測定した。平均すると空気1Lあたり約430個の微生物細胞が検出された。従って、相当数の微生物細胞が野外の空気中を漂い分散していることが明らかになった。
2013年度は2本の主著論文、1本の共著論文を出版した。また、他に1本が改訂中、1本が査読中である。研究発表は、個体群生態学会のシンポジウムと日本生態学会の自由集会で招待講演を行い、日本生態学会の英語口頭発表では微生物・生態系生態学セクションで最優秀賞を受賞した。

Strategy for Future Research Activity

(抄録なし)

Report

(3 results)
  • 2013 Annual Research Report
  • 2012 Annual Research Report
  • 2011 Annual Research Report
  • Research Products

    (29 results)

All 2014 2013 2012 2011 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results) Presentation (16 results) (of which Invited: 3 results) Remarks (3 results)

  • [Journal Article] Herbivorous insect decreases plant nutrient uptake : the role of soil nutrient availability and association of below-ground symbionts2014

    • Author(s)
      Katayama N, Silva AO, Kishida O, Ushio M, Kita S, Ohgushi T
    • Journal Title

      Ecological Entomology

      Volume: 印刷中(掲載確定)

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] CARD-FISH analysis of prokaryotic community composition and abundance along small-scale vegetation gradients in a dry arctic tundra ecosystem2013

    • Author(s)
      Ushio M, Makoto K, Klaminder J, Nakano S-I
    • Journal Title

      Soil Biology & Biochemistry

      Volume: 64 Pages: 147-154

    • DOI

      10.1016/j.soilbio.2013.05.002

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A coexisting fungal-bacterial community stabilizes soil decomposition activity in a microcosm experiment2013

    • Author(s)
      Ushio M, Miki T, Balser TC
    • Journal Title

      PLoS ONE

      Volume: 8 Issue: 11 Pages: 80320-80320

    • DOI

      10.1371/journal.pone.0080320

    • Related Report
      2013 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effects of condensed tannins in conifer leaves on the composition and activity of soil microbial community in a tropical montane forest2013

    • Author(s)
      Ushio M, Balser TC, Kitayama K
    • Journal Title

      Plant and Soil

      Volume: 365 Issue: 1-2 Pages: 157-170

    • DOI

      10.1007/s11104-012-1365-6

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Predator-prey body size relationships when predators can consume prey larger than themselves2013

    • Author(s)
      Nakazawa T, Ohba S-Y, Ushio M
    • Journal Title

      Biology Letters

      Volume: 印刷中(印刷中)(掲載確定) Issue: 3 Pages: 20121193-20121193

    • DOI

      10.1098/rsbl.2012.1193

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic scaling in the growth of a non-branching plant, Cardiocrinum cordatum2012

    • Author(s)
      Koyama K, Hidaka Y, Ushio M
    • Journal Title

      PLoS ONE

      Volume: 7 Issue: 9 Pages: e45317-e45317

    • DOI

      10.1371/journal.pone.0045317

    • Related Report
      2012 Annual Research Report
    • Peer Reviewed
  • [Journal Article] In situ enzyme activity in the dissolved and particulate fraction of fluid from four pitcher plant species of the genus Nepenthes2011

    • Author(s)
      Takeuchi Y, Salcher MM, Ushio M, Shimizu-Inatsugi R, Kobayashi M, Diway B, von Mering C, Pernthaler J, Shimizu KK
    • Journal Title

      PLoS ONE

      Volume: 6 Issue: 9 Pages: e25144-e25144

    • DOI

      10.1371/journal.pone.0025144

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A meta-analysis of the global distribution pattern of condensed tannins in tree leaves2011

    • Author(s)
      Ushio M, Adams JM
    • Journal Title

      The Open Ecology Journal

      Volume: 4 Issue: 1 Pages: 18-23

    • DOI

      10.2174/1874213001104010018

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Scale dependence of predator-prey mass ratio : determinants and applications2011

    • Author(s)
      Nakazawa T, Ushio M, Kondoh M
    • Journal Title

      Advances in Ecological Research

      Volume: 45 Pages: 269-302

    • DOI

      10.1016/b978-0-12-386475-8.00007-1

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The ecology of podocarps in tropical montane forests of Borneo : distribution, population dynamics, and soil nutrient acquisition2011

    • Author(s)
      Kitayama K, Aiba S-I, Ushio M, Seino T, Fujiki Y
    • Journal Title

      Smithsonian Contributions to Botany

      Volume: 95 Pages: 101-117

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Presentation] High-throughput sequencing and a microscope-based analysis of the soil prokaryotic community along vegetation gradients in a dry arctic tundra2014

    • Author(s)
      Ushio M, Makoto K, Klaminder J, Takasu H, Nakano S-I
    • Organizer
      第61回日本生態学会
    • Place of Presentation
      広島国際会議場、広島市
    • Year and Date
      2014-03-16
    • Related Report
      2013 Annual Research Report
  • [Presentation] River mouth to lake bacterial community composition and their extra enzyme activities differ2014

    • Author(s)
      Fujinaga S, Ushio M, Nakano S-I
    • Organizer
      第61回日本生態学会
    • Place of Presentation
      広島国際会議場、広島市
    • Year and Date
      2014-03-16
    • Related Report
      2013 Annual Research Report
  • [Presentation] 操作実験で明らかにする土壌微生物における多様性-群集機能の関係2014

    • Author(s)
      潮雅之
    • Organizer
      第61回日本生態学会
    • Place of Presentation
      広島国際会議場、広島市
    • Year and Date
      2014-03-14
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] 昆虫体表の微生物群集を利用した送粉昆虫-植物ネットワークの推定2013

    • Author(s)
      潮雅之
    • Organizer
      第29回個体群生態学会
    • Place of Presentation
      大阪府立大学・中百舌鳥キャンパス、堺市
    • Year and Date
      2013-10-12
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] ツンドラの植生遷移系列に沿った土壌微生物群集の定性的・定量的解析2013

    • Author(s)
      潮雅之
    • Organizer
      第248回生態研セミナー
    • Place of Presentation
      京都大学生態学研究センター、大津市
    • Year and Date
      2013-07-19
    • Related Report
      2013 Annual Research Report
    • Invited
  • [Presentation] Metagenomic analysis of the microbial community on insect body surfaces and its application2013

    • Author(s)
      Ushio M, Nagano AJ, Takasu H, Yamasaki E
    • Organizer
      CER International Workshop on Biogeochemical Cycling and Microbial Ecology for Young Scientists
    • Place of Presentation
      Otsu, Japan
    • Year and Date
      2013-03-19
    • Related Report
      2012 Annual Research Report
  • [Presentation] ツールの融合で挑む植物-土壌微生物の相互作用研究:バイオマーカー、CARD-FISH、メタゲノム2013

    • Author(s)
      潮雅之
    • Organizer
      第60回日本生態学会
    • Place of Presentation
      グランシップ静岡、静岡市(招待講演)
    • Year and Date
      2013-03-06
    • Related Report
      2012 Annual Research Report
  • [Presentation] Microbial functional diversity and stability of soil decomposition activity2012

    • Author(s)
      Ushio M, Miki T, Balser TC
    • Organizer
      The 14th ISME
    • Place of Presentation
      Copenhagen, Denmark
    • Year and Date
      2012-08-23
    • Related Report
      2012 Annual Research Report
  • [Presentation] Scale-dependence of predator-prey mass ratio : Determinants and applications2012

    • Author(s)
      Nakazawa T, Ushio M, Kondoh M
    • Organizer
      ASLO aquatic science meeting
    • Place of Presentation
      Otsu, Japan
    • Year and Date
      2012-07-12
    • Related Report
      2012 Annual Research Report
  • [Presentation] 植物-土壌の相互作用と樹木群集の構造2012

    • Author(s)
      潮雅之
    • Organizer
      龍谷大学生態学セミナー
    • Place of Presentation
      龍谷大学・大津市(招待講演)
    • Year and Date
      2012-06-27
    • Related Report
      2012 Annual Research Report
  • [Presentation] 捕食者と被食者の体サイズ比のスケール依存性:その決定要因と応用2012

    • Author(s)
      仲澤剛史、潮雅之、近藤倫生
    • Organizer
      第59回日本生態学会
    • Place of Presentation
      龍谷大学、大津市
    • Year and Date
      2012-03-21
    • Related Report
      2011 Annual Research Report
  • [Presentation] ボルネオ島熱帯山地林において裸子植物Dacrycarpus imbricatus(マキ科)が優占する生理生態的メカニズムについて2012

    • Author(s)
      吉田日和、潮雅之、北山兼弘
    • Organizer
      第59回日本生態学会
    • Place of Presentation
      龍谷大学、大津市
    • Year and Date
      2012-03-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] 熱帯山地林における植物リター中ポリフェノールが地形に伴う窒素可給性の変化に与える影響2012

    • Author(s)
      市塚友香、潮雅之、北山兼弘
    • Organizer
      第59回日本生態学会
    • Place of Presentation
      龍谷大学、大津市
    • Year and Date
      2012-03-19
    • Related Report
      2011 Annual Research Report
  • [Presentation] CARD-FISH for soil microbes : Experimental procedure and image processing2012

    • Author(s)
      Ushio M, Nakano S
    • Organizer
      Joint Meeting of The 59th Annual Meeting of ESJ and The 5th EAFES International Congress
    • Place of Presentation
      Otsu, Japan
    • Year and Date
      2012-03-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] Nutrient-based plant-soil feedback predicts conifer abundance in a tropical montane forest2011

    • Author(s)
      Ushio M, Aiba S-I, Takeuchi Y, Kitayama K
    • Organizer
      The 5th International Symposium of the Biodiversity gCOE project "from Gene to Ecosystem"
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2011-07-09
    • Related Report
      2011 Annual Research Report
  • [Presentation] 微生物群集の機能的多様性は植物葉形質による土壌分解過程の制御を弱める2011

    • Author(s)
      潮雅之、三木健、Teri C Balser
    • Organizer
      京都大学微生物科学寄附研究部門主催シンポジウム「微生物科学の現状と展望」
    • Place of Presentation
      京都大学芝蘭会館、京都市
    • Year and Date
      2011-06-23
    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://masayukiushio.web.fc2.com/index.html

    • Related Report
      2013 Annual Research Report
  • [Remarks] 個人HP

    • URL

      http://masayukiushio.web.fc2.com/

    • Related Report
      2012 Annual Research Report
  • [Remarks] 個人HP

    • URL

      http://masayukiushio.web.fc2.com/

    • Related Report
      2011 Annual Research Report

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Published: 2011-12-12   Modified: 2024-03-26  

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