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Biodiversity and evolution of terrestrial flora in Antarctica.

Research Project

Project/Area Number 12640691
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 系統・分類
Research InstitutionNational Institute of Polar Research

Principal Investigator

IMURA Satoshi  National Institute of Polar Research, Associate Professor, 研究系, 助教授 (90221788)

Co-Investigator(Kenkyū-buntansha) KANDA Hiroshi  National Institute of Polar Research, Professor, 資料系, 教授 (70099935)
Project Period (FY) 2000 – 2003
Project Status Completed (Fiscal Year 2003)
Budget Amount *help
¥3,000,000 (Direct Cost: ¥3,000,000)
Fiscal Year 2003: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2002: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2001: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 2000: ¥1,100,000 (Direct Cost: ¥1,100,000)
Keywordslakes / mosses / Antarctica / molecular systematics / DNA / sediments / geohistory / diversity / コケ植物 / DNA / 無性芽 / 繁殖生態 / 耐乾性 / 湖沼群 / コケ / 底生植物 / 密度 / 仮根 / 生理生態 / 光合成能
Research Abstract

Growth environment, geohistory, morphological diversity, and molecular systematics were investigated on mosses in Syowa station area, Antarctica, especially on aquatic mosses at the bottom of lakes.
Water temperature at the lake bottom was +7℃ in austral summer, and +7℃ even in winter. Because of little snow accumulation in this region, the sun light easily permeate through surface ice cover to plants growing at the lake bottom, strongly enough for photosynthesis between October to April. Salinity of lake water was variable among lakes, and nutrients are quite low. Flora in Antarctic lakes was characterized by little amount of plankton and rich benthic vegetation a the bottom. Most part of the lake bottom was covered with population of filamentous cyanobacteria and some green algae and diatoms. Sediments of these plants and sands were analyzed to clarify the age of lakes and history of lake environments.
Molecular systematic study was carried out on two aquatic mosses, Bryum sp. and Leptobryum sp. Aquatic Bryum was thought to originated from terrestrial B.pseudotriquetrum, but terrestrial B.pseudotriquetrum itself must be changed its name to B.pallescens distributing in Antarctic peninsula and out of Antarctica. Genetic diversity of aquatic Leptobryum was included in wide diversity range of L.pyriforme known as weedy species in all around the world.

Report

(5 results)
  • 2003 Annual Research Report   Final Research Report Summary
  • 2002 Annual Research Report
  • 2001 Annual Research Report
  • 2000 Annual Research Report
  • Research Products

    (41 results)

All Other

All Publications (41 results)

  • [Publications] 伊村 智, 高橋 浩, 中村俊夫: "南極湖沼底の"コケ坊主"-14C年代測定による成長解析と定着年代の推定-"名古屋大学加速器質量分析計業績報告書. XI. 176-183 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 瀬戸浩二, 伊村智, 板東忠司, 神田啓史: "南極湖沼に記録された完新世の古環境"月刊地球. 24. 31-36 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 伊村智, 神田啓史: "南極湖沼底の水生蘚類群落"蘚苔類研究. 8(3). 69-73 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 伊村智: "南極湖沼に記録された環境変動の歴史"文部科学教育通信. 66. 28-29 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imura, S., Bando, T., Seto, K., Ohtani, S., Kudoh, S., Kanda, H.: "Distribution of aquatic mosses in the Soya Coast region, East Antarctica."Polar Bioscience. 16. 1-10 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudoh, S., Tsuchiya, Y., Ayukawa, E., Imura, S., Kanda, H.: "Ecological studies of aquatic moss pillars in Antarctic lakes.1.Macro structure and carbon, nitrogen and chlorophyll a contents."Polar Bioscience. 16. 11-22 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudoh, S., Watanabe, K., Imura, S.: "Ecological studies of aquatic moss pillars in Antarctic lakes.2.Temperature and light environment at the moss habitat."Polar Bioscience. 16. 23-32 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudoh, S., Kashino, Y., Imura, S.: "Ecological studies of aquatic moss pillars in Antarctic lakes.3.Light response and chilling and heat sensitivity of photosynthesis."Polar Bioscience. 16. 33-42 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] 伊村智, 工藤栄, 坂東忠司, 大谷修司, 瀬戸浩二, 伴 修平, 神田啓史: "南極湖沼における生態・地史学的研究計画(REGAL Project)-これまでの経過と今後の計画-"南極資料. 47(2). 272-281 (2003)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kanda, H., Ohtani, S., Imura, S.: "Beyer, L., Bolter, M.(eds.)Ecological studies 154:Geoecology of Antarctic Ice-Free Coastal Landscapes, pp.249-264.Plant communities at Dronning Maud Land."Springer-Verlag, Heiderberg.. 427 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imura, S., Takahashi, H.A., Nakamura, T.: "Benthic moss pillars (Koke Bouzu) in Antarctic lakes -Analysis of colonization and growth by ^<14>C dating-."Summaries of Researches Using AMS at Nagoya University. XI. 176-183 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imura, S., Kanda, H.: "Aquatic moss vegetation at the bottom of Antarctic lakes."Bryological Research. 8. 69-73 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imura, S., Bando, T., Seto, K., Ohtani, S., Kudoh, S., Kanda, H.: "Distribution of aquatic mosses in the Soya Coast region, East Antarctica."Polar Bioscience. 16. 1-10 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudoh, S., Tsuchiya, Y., Ayukawa, E., Imura, S., Kanda, H.: "Ecological studies of aquatic moss pillars in Antarctic lakes. 1. Macro structure and carbon, nitrogen and chlorophyll a contents."Polar Bioscience. 16. 11-22 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudoh, S., Watanabe, K., Imura, S.: "Ecological studies of aquatic moss pillars in Antarctic lakes. 2. Temperature and light environment at the moss habitat."Polar Bioscience. 16. 23-32 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kudoh, S., Kashino, Y., Imura, S.: "Ecological studies of aquatic moss pillars in Antarctic lakes. 3. Light response and chilling and heat sensitivity of photosynthesis."Polar Bioscience. 16. 33-42 (2003)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Kanda, H., Ohtani, S., Imura, S.: "Plant communities at Dronning Maud Land."Ecological studies 154: Geoecology of Antarctic Ice-Free Coastal Landscapes (Beyer, L. & Bolter, M.(eds.)). 249-264 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2003 Final Research Report Summary
  • [Publications] Imura, S., Bando, T., Seto, K., Ohtani, S., Kudoh, S., Kanda, H.: "Distribution of aquatic mosses in the Soya Coast region, East Antarctica."Polar Bioscience. 16. 1-10 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kudoh, S., Tsuchiya, Y., Ayukawa, E., Imura, S., Kanda, H.: "Ecological studies of aquatic moss pillars in Antarctic lakes 1. Macro structure and carbon, nitrogen and chlorophyll a contents."Polar Bioscience. 16. 11-22 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kudoh, S., Watanabe, K., Imura, S.: "Ecological studies on aquatic moss pillars in Antarctic lakes. 2. Temperature and light environment at the moss habitat."Polar Bioscience. 16. 23-32 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Kudoh, S., Kashino, Y., Imura, S.: "Ecological studies on aquatic moss pillars in Antarctic lakes. 3. Light response and chilling and heat sensitivity of photosynthesis."Polar Bioscience. 16. 33-42 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] 伊村智, 工藤栄, 坂東忠司, 大谷修司, 瀬戸浩二, 伴 修平, 神田啓史: "南極湖沼における生態・地史学的研究計画(REGAL Project)-これまでの経過と今後の計画-"南極資料. 47(2). 272-281 (2003)

    • Related Report
      2003 Annual Research Report
  • [Publications] Ayukawa, E., Imura, S., Kudoh, S., Kanda, H.: "Reproductive phenology of subalpine moss, Polytrichum ohioense Ren. et Card"Polar Bioscience. 15. 88-96 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Imura, S.: "Periodicity of vegetative diaspore formation in some Japanese mosses"Hikobia. 13. 685-691 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] 伊村智: "南極湖沼に記録された環境変動の歴史"文部科学教育通信. 66. 28-29 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Imura, S., Bando, T., Saito, S., Seto, K., Kudoh, S., Kanda, H.: "Distribution of aquatic mosses in Soya Coast region, East Antarctica"Polar Bioscience. 16(In Printing). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kudoh, S., Tsuchiya, Y., Ayukawa, E., Imura, S., Kanda, H.: "Ecological studies on aquatic moss pillars in Antarctic lakes. 1. Macro structure and carbon, nitrogen and Chlorophyll a contents"Polar Bioscience. 16(In Printing). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kudoh, S., Watanabe, K., Imura, S.: "Ecological studies on aquatic moss pillars in Antarctic lakes. 2. Temperature and light environment at the moss habitat"Polar Bioscience. 16(In Printing). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kudoh, S., Kashino, Y., Imura, S.: "Ecological studies on aquatic moss pillars in Antarctic lakes. 3. Light response and chilling and heat sensitivity of photosynthesis"Polar Bioscience. 16(In Printing). (2003)

    • Related Report
      2002 Annual Research Report
  • [Publications] Kanda, H., Ohtani, S., Imura, S.: "Plant communities at Dronning Maud Land. In Beyer, L. & Bolter, M. (eds.) Ecological studies 154 : Geoecology of Antarctic Ice-Free Coastal Landscapes"Springer-Verlag, Heiderberg. 249-264 (2002)

    • Related Report
      2002 Annual Research Report
  • [Publications] Ueno, T., Imura, S., Kanda, H.: "Colony form and shoot morphology of Sanionia uncinata (Hedw.) Loeske growing in different water conditions in the high arctic, Spitsbergen, Svalbard"Bryological Research. 8. 1-6 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 鮎川恵理, 伊村智, 神田啓史: "南極ラングホブデ雪鳥沢における蘚類の繁殖体バンク"南極資料. 45. 320-328 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 瀬戸浩二, 伊村智, 板東忠司, 神田啓史: "南極湖沼に記録された完新世の古環境"月刊地球. 24. 31-36 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 伊村智, 神田啓史: "南極湖沼底の水生蘚類群落"蘚苔類研究. 8. 69-73 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Kaup,E.,Kanda,H.and Imura,S.: "Lake ecosystems in Dronning Maud and Enderby Lands."第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Naganuma,T.,Masuzawa,T.,Imura,S.and Kanda,H.: "Ecological survey of moss vegetation and microflora around the Terra Nova Bay Area, Northern Victoria Land, Antarctica."第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 渡辺史子,長沼毅,増沢武弘,伊村智,神田啓史: "南極テラノバベイ域におけるコケ植生土壌および藍藻類の脂肪酸組成"第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 岡本拓士,長沼毅,増沢武弘,藤岡換太郎,伊村智,神田啓史: "南極と深海熱水噴出口から分離されたHalomonas属好塩菌について"第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 増沢武弘,長沼毅,伊村智,神田啓史: "南極におけるコケの群落構造と窒素固定シアノバクテリアについて"第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 工藤栄,伊村智: "南極露岩域湖沼底に群生するコケ坊主"第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 對馬千陽,神田啓史: "キョクチセンボンゴケPottia heimii(Hedw.)Hampeの分布と生育状況"第23回極域生物シンポジウム(平成12年12月7日〜8日開催、国立極地研究所). (2000)

    • Related Report
      2000 Annual Research Report

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Published: 2000-04-01   Modified: 2016-04-21  

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