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2014 Fiscal Year Annual Research Report

極限環境下の生物多様性-モデルサイトとしての南極湖沼

Research Project

Project/Area Number 23247012
Research InstitutionNational Institute of Polar Research

Principal Investigator

伊村 智  国立極地研究所, 研究教育系, 教授 (90221788)

Co-Investigator(Kenkyū-buntansha) 大谷 修司  島根大学, 教育学部, 教授 (50185295)
黒沢 則夫  創価大学, 工学部, 教授 (30234602)
伴 修平  滋賀県立大学, 環境科学部, 教授 (50238234)
福井 学  北海道大学, 低温科学研究所, 教授 (60305414)
鹿児島 浩  大学共同利用機関法人情報・システム研究機構(新領域融合研究センター及びライフサイ, 新領域融合研究センター, 融合プロジェクト特任研究員 (00550063)
鈴木 忠  慶應義塾大学, 医学部, 准教授 (90216359)
星野 保  独立行政法人産業技術総合研究所, バイオマスファイナリー研究センター, 研究チーム長 (60357944)
東條 元昭  大阪府立大学, 生命環境科学研究科(系), 准教授 (90254440)
Project Period (FY) 2011-04-01 – 2015-03-31
Keywords環境変動 / 極地 / 生態学 / 生物多様性 / 分類学 / 移入種
Outline of Annual Research Achievements

最終年度の四年目となる26年度は、クマムシやセンチュウを中心とした微小動物の分類・生態に関する解析が進み、着実に成果を上げることが出来た。特にクマムシについては多様性の概要に関する論文が出版されたほか、飼育系を確立して繁殖生態に関するデータについても投稿が受理され、極限環境下での多様性と生態の総合理解が進みつつあることは画期的な成果であるといえる。またバクテリアに関しては、コケ坊主をモデル生態系とした物質循環経路の再構築が完了し、メタゲノムなどによる全体像の解析が進んだことに加え、微生物種間の遺伝子水辺伝播が広く頻繁に起こっていることが明らかとなり、新たな視点での研究展開が期待される状況となっている。コケ植物については湖底に生育する水生蘚類の分布について、大気循環からの起源地解析が進展し、南極全体の蘚類相の起源の検討に向かう研究の展開が見られた。菌類については、地上および湖底の蘚類と共存する菌類の生態学的な意義の検討が進められ、極限関係における種間関係について研究が進みつつある。
南極湖沼生態系の生物多様性の全体像が次第に明らかになると共に、湖底堆積物を用いた古環境および古生物相の変遷解析が進み、湖沼研究へ時間軸を取り込む試みが進められた。特に、各生物の南極への侵入時期の特定、侵入イベントの推定、新入起源地の特定については、生物、地学、大気などの幅広い分野からの検討によりその状況が明らかになった。極限環境における生物の定着過程について、新たな視点からの研究分野開拓に向けた芽が生まれつつあり、本課題終了後の研究展開が期待されるものである。

Research Progress Status

26年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

26年度が最終年度であるため、記入しない。

  • Research Products

    (24 results)

All 2015 2014 Other

All Journal Article (11 results) (of which Peer Reviewed: 11 results,  Open Access: 2 results) Presentation (12 results) (of which Invited: 2 results) Remarks (1 results)

  • [Journal Article] Co-expression of the transcription factors CEH-14 and TTX-1 regulates AFD neuron-specific genes gcy-8 and gcy-18 in C. elegans.2015

    • Author(s)
      Kagoshima H, and Kohara Y.
    • Journal Title

      Dev Biol.

      Volume: 15 Pages: 325-336

    • DOI

      10.1016/j.ydbio.2015.01.010

    • Peer Reviewed
  • [Journal Article] Surviving freezing in plant tissues by oomycetous snow molds.2015

    • Author(s)
      Murakami, R., Yajima, Y., Kida, K., Tokura, K., Tojo, M., and Hoshino, T.
    • Journal Title

      Cryobiology

      Volume: 70 Pages: 208-210

    • DOI

      10.1016/j.cryobiol.2015.01.007

    • Peer Reviewed
  • [Journal Article] Aliens in Antarctica: assessing transfer of plant propagules by human visitors to reduce invasion risk.2014

    • Author(s)
      Huiskes, A.H.L., Gremmen, N.J.M., Bergstrom, D.M., Frenot, Y., Hughes, K.A., Imura, S., Kiefer, K., Lebouvier, M., Lee, J.E., Tsujimoto, M., Ware, C., Van de Vijver, B. and Chown, S.L.
    • Journal Title

      Biological Conservation

      Volume: 171 Pages: 278-284

    • DOI

      10.1016/j.biocon.2014.01.038

    • Peer Reviewed
  • [Journal Article] Holocene paleolimnological changes of Lake Oyako-ike in the Soya Kaigan of East Antarctica.2014

    • Author(s)
      Matsumoto, G. I., Honda, E., Seto, K., Tani, Y., Watanabe, T., Ohtani, S., Kashima, K., Nakamura, T. and Imura, S.
    • Journal Title

      Inland Waters

      Volume: 4 Pages: 105-112

    • DOI

      10.5268/IW-4.2.679

    • Peer Reviewed
  • [Journal Article] Bacterial Diversity in Sea Ice from the Southern Ocean and the Sea of Okhotsk.2014

    • Author(s)
      Okubo, T., Tosaka, Y., Sato, T., Usui, M., Nakajima, C., Suzuki, Y., Imura, S. and Tamura, Y.
    • Journal Title

      Journal of Applied & Environmental Microbiology

      Volume: 2 Pages: 266-272

    • DOI

      10.12691/jaem-2-6-1

    • Peer Reviewed
  • [Journal Article] Absence of a Medieval Climate Anomaly, Little Ice Age and twentieth century warming in Skarvsnes, Lützow Holm Bay, East Antarctica.2014

    • Author(s)
      Tavernier, I., Verleyen, E., Hodgson, D.A., Heirman, K., Roberts, S.J., Imura, S., Kudoh, S., Sabbe, K., Batist, M.D. and Vyverman, W.
    • Journal Title

      Antarctic Science

      Volume: 26 Pages: 585-598

    • DOI

      10.1017/S0954102014000029

    • Peer Reviewed
  • [Journal Article] Molecular analysis of the cold tolerant Antarctic nematode, Panagrolaimus davidi.2014

    • Author(s)
      Thorne, M.A.S., Kagoshima, H., Clark, M.S., Marshall, C.J., and Wharton, D.A.
    • Journal Title

      PLoS ONE

      Volume: 6 Pages: e104526

    • DOI

      10.1371/journal.pone.0104526

    • Peer Reviewed / Open Access
  • [Journal Article] Effects of nitrogen concentration and culturing temperature on lipase secretion and morphology of the Antarctic basidiomycetous yeast Mrakia blollopis.2014

    • Author(s)
      Tsuji, M., Yokota, Y., Kudoh, S., and Hoshino, T.
    • Journal Title

      International Journal of Research in Engineering and Science

      Volume: 2 Pages: 49-54

    • Peer Reviewed
  • [Journal Article] Preliminary description of tardigrade species diversity and distribution pattern around coastal Syowa Station and inland Sør Rondane Mountains, Dronning Maud Land, East Antarctica.2014

    • Author(s)
      Tsujimoto, M. McInnes, S.J., Convey, P. and Imura, S.
    • Journal Title

      Polar Biology

      Volume: 37 Pages: 1361-1367

    • DOI

      10.1007/s00300-014-1516-8

    • Peer Reviewed
  • [Journal Article] Novel biogenic aggregation of moss gemmae on a disappearing African glacier.2014

    • Author(s)
      Uetake, J.,Tanaka, S.,Hara, K.,Tanabe, Y.,Samyn, D.,Motoyama, H.,Imura, S. and Kohshima, S.
    • Journal Title

      PLoS One

      Volume: 9 Pages: e112510

    • DOI

      10.1371/journal.pone.0112510

    • Peer Reviewed / Open Access
  • [Journal Article] 極地の土壌伝染性植物病原菌2014

    • Author(s)
      東條元昭
    • Journal Title

      土と微生物

      Volume: 68 Pages: 69-71

    • Peer Reviewed
  • [Presentation] Community structures of prokaryotes and protistan microplankton in the Antarctic saline lake Nurume-Ike revealed by SSU ribosomal RNA gene clone analysis.2015

    • Author(s)
      Kurosawa N, Kubo S, Chaya A, Kawamata A, Kosugi M, Imura S.
    • Organizer
      2015 Aquatic Sciences Meeting.
    • Place of Presentation
      Granada, Spain
    • Year and Date
      2015-02-25
  • [Presentation] Polar habitats as hot spots for microbio-geography2014

    • Author(s)
      Naganuma T, Kashihara K, Nakai R, Niki H, Uetake J, Kudoh S, Imura S
    • Organizer
      The Fifth Symposium on Polar Science, The 36th Symposium on Polar Biology,
    • Place of Presentation
      NIPR, Tachikawa
    • Year and Date
      2014-12-04
    • Invited
  • [Presentation] Paleolimnological changes in Lake Maruwanminami-ike of the Soya Kaiganin East Antarctica during the Holocene.2014

    • Author(s)
      Matsumoto G.I., Honda E., Ito K., Seto K., Tani Y., Kang I., Kashima K., Ohtani S., Watanabe T., Nakamura T.,Imura S.
    • Organizer
      The Fifth Symposium on Polar Science, The 36th Symposium on Polar Biology,
    • Place of Presentation
      NIPR, Tachikawa
    • Year and Date
      2014-12-03
  • [Presentation] Reconstruction of paleoenvironmental changes at coastal freshwater lakes along the Soya Coast, Antarctica, using fossil diatom assemblages.2014

    • Author(s)
      Kang I., Kashima K., Seto K., Tani Y., Matsumoto G.I.
    • Organizer
      The Fifth Symposium on Polar Science, The 36th Symposium on Polar Biology
    • Place of Presentation
      NIPR, Tachikawa
    • Year and Date
      2014-12-03
  • [Presentation] Lichen-associated bacteria and biogeograph2014

    • Author(s)
      Katsuhiko K, Imura S, Uetake J, Nakai R, Naganuma T
    • Organizer
      The Fifth Symposium on Polar Science, The 36th Symposium on Polar Biology,
    • Place of Presentation
      NIPR, Tachikawa
    • Year and Date
      2014-12-03
  • [Presentation] Phytopathogenic fungi in polar regions and their relationship with climate change.2014

    • Author(s)
      Tojo M
    • Organizer
      3rd Korea-Japan Joint Symposium & The 2014 KSPP Fall Meeting on Plant Pathology
    • Place of Presentation
      Busan, Korea
    • Year and Date
      2014-10-23
    • Invited
  • [Presentation] 地衣類共在バクテリア相と生物地理2014

    • Author(s)
      柏原克彦、伊村智、植竹淳、中井亮佑、長沼毅
    • Organizer
      環境微生物系学会合同大会
    • Place of Presentation
      アクトシティ浜松コングレスセンター、浜松
    • Year and Date
      2014-10-23
  • [Presentation] Bacterial Diversity in Saline and Freshwater Lakes in Antarctica. (Invited Plenary Lecture).2014

    • Author(s)
      Kurosawa N, Chaya A, Kawamata A, Imura S.
    • Organizer
      7th International Seminar of Indonesian Society for Microbiology (ISISM2014).
    • Place of Presentation
      Padang, Indonesia
    • Year and Date
      2014-10-15
  • [Presentation] Bacterial Genome-wide Horizontal Gene-transfers Provide Co-evolution and Adaptation Strategies of Biosphere in Ultra-oligotrophic Antarctic Lake.2014

    • Author(s)
      BABA, T., ABE, T., TOYODA, A., NAKAI, R., NAGANUMA, T., FUJIYAMA, A., IMURA, S., KANDA, H., MOTOYAMA, H., NIKI, H.
    • Organizer
      XXXIII SCAR Bienial Meetings and Open Science Conference
    • Place of Presentation
      Auckland, NZ
    • Year and Date
      2014-08-28
  • [Presentation] Holocene paleolimnological changes in Lake Maruwanminami-ike of the Soya Kaigan in East Antarctica.2014

    • Author(s)
      Matsumoto G.I., Honda E., Ito K., Seto K., Tani Y., Kang I., Kashima K., Ohtani S., Watanabe T., Nakamura T., Imura S.
    • Organizer
      XXXIII SCAR Bienial Meetings and Open Science Conference
    • Place of Presentation
      Auckland, NZ
    • Year and Date
      2014-08-28
  • [Presentation] Year-round micrometeorological observation of terrestrial photosynthetic organism habitats for capturing the effect of climate change.2014

    • Author(s)
      Kosugi M, Kurosawa N, Kawamata A, Kamei Y, Kudoh S, Imura S.
    • Organizer
      XXXIII SCAR Bienial Meetings and Open Science Conference
    • Place of Presentation
      Auckland, NZ
    • Year and Date
      2014-08-27
  • [Presentation] Microbial synergy for material cycling in an Antarctic moss pillar inferred from metagenomic data2014

    • Author(s)
      Nakai R, Abe T, Baba T, Yanagihara K, Kagoshima H, Imura S, Kanda H, Niki H, Kohara Y, Naganuma T
    • Organizer
      XXXIII SCAR Bienial Meetings and Open Science Conference
    • Place of Presentation
      Auckland
    • Year and Date
      2014-08-27
  • [Remarks] Database of Polar Biodiversity

    • URL

      http://polaris.nipr.ac.jp/~antmoss/database.html

URL: 

Published: 2016-06-01  

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