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2010 Fiscal Year Self-evaluation Report

Investigation for functionalities of rhizo-biocomplex to minimize highly adverse onditions in association with organic sink in the rhizosphere and its utilization in agricultural use

Research Project

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Project/Area Number 20248033
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Boundary agriculture
Research InstitutionHokkaido University

Principal Investigator

HASHIDOKO Yasuyuki  Hokkaido University, 大学院・農学研究院, 教授 (40281795)

Project Period (FY) 2008 – 2011
Keywords窒素固定 / 菌体外酵素 / 生物的硝化抑制 / 負荷環境緩和 / コンソーシアム形成 / 熱帯泥炭 / シアノバクテリア / IAA産生
Research Abstract

負荷土壌に対処する根圏生物複合系の機能性解明を目指して,酸性耐性糸状菌-窒素固定菌系、根面細菌-菌糸分岐誘導卵菌系、亜酸化窒素生細菌-樹木根系、外生菌根菌-単生窒素固定細菌系、アーバスキュラー菌根菌-植物根面菌系、多環式芳香族分解細菌コンソーシアム系、抗生物質産生菌-作物根圏等の根圏生物複合系の土壌環境負荷量の緩和能力を精査し、複合系の核をなす微生物がどのようにしてその複合系を維持・統御し、根面環境改善能を発揮するのかを明らかにする研究である。二者あるいは三者同盟系について、それぞれの菌相と機能を追跡し、何によってこの三者複合系が強酸性条件下での宿主植物の生育を亢進できるのかを解明する。また,根圏から得られた環境負荷耐性細菌群の各種菌体外高分子に着目し、これらが根圏有機物シンク形成と土壌負荷環境の緩和・改変にどのような役割を果たしているかを検討する。さらには,熱帯泥炭地での土壌からの窒素のロスを抑え込んでいる植物樹種の根滲出物が亜酸化窒素生成細菌の活動に及ぼす影響を見ている。

  • Research Products

    (10 results)

All 2010 2009 2008

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results)

  • [Journal Article] Salkowski's reagent test as a primary screening index for functionalities of rhizobacteria isolated from wild dipterocarp saplings naturally growing on medium-strongly acidic tropical peat soil.2010

    • Author(s)
      Atiqur Rahman, Irnayuli R.Sitepu, Sui-Yan Tang, Yasuyuki Hashidoko.
    • Journal Title

      Bioscience, Biotechnology and Biochemistry 74(11)

      Pages: 2202-2208

    • Peer Reviewed
  • [Journal Article] Burkholderia vietnamiensis isolated from root tissues of nipa palm (Nypa fruticans) in Sarawak, Malaysia, proved to be its major endophytic nitrogen-fixing bacterium.2010

    • Author(s)
      Sui-Yan Tang, Shintaro Hara, Lulie Melling, Gob Ka Joe, Yasuyuki Hashidoko.
    • Journal Title

      Bioscience, Biotechnology and Biochemistry 74(9)

      Pages: 1972-1975

    • Peer Reviewed
  • [Journal Article] Antagonistic effects of Pseudomonas jessenii against Pythium aphanidermatum : Morphological, ultrastructural and cytochemical aspects.2008

    • Author(s)
      Abhinandan Deora, Yasuyuki Hashidoko, Satoshi Tahara.
    • Journal Title

      Journal of Basic Microbiology 48

      Pages: 71-81

    • Peer Reviewed
  • [Journal Article] Emergence and behaviors of acid-tolerant Janthinobacterium sp. that evolves N20 from deforested tropical peatland.2008

    • Author(s)
      Yasuyuki Hashidoko, Fumiaki Takakai, Yo Toma, Untung Darung, Lulie Melling, Satoshi Tahara, Ryusuke Hatano.
    • Journal Title

      Soil Biology and Biochemistry 40

      Pages: 116-125

    • Peer Reviewed
  • [Journal Article] Requirement for particular seed-borne fungi for seed germination and seedling growth of Xyris complanata, a pioneer monocot in top soil-lost tropical peatland in Central Kalimantan2008

    • Author(s)
      Ryosuke Tamura, Yasuyuki Hashidoko, Noriko Ogita, Suwido H.Limin, Satoshi Tahara.
    • Journal Title

      Indonesia. Ecological Research 23(3)

      Pages: 573-579

    • Peer Reviewed
  • [Presentation] ソテツとNostoc sp.の共生によるソテツ・サンゴ状根形成に関わるシグナル物質の検索2010

    • Author(s)
      田中慎人, 崎浜靖子, 橋床泰之
    • Organizer
      第45回植物化学調節学会年次大会
    • Place of Presentation
      神戸,神戸大学百年記念会館
    • Year and Date
      20101101-20101102
  • [Presentation] Genetic analysis of active N_2O-emitting bacteria from tropical peat soils for their nitrous oxide reductase gene.2010

    • Author(s)
      Y.Hashidoko, H.Takeda, U.Darung, L.Melling, R.Hatano.
    • Organizer
      19th The World Congress of Soil Science.
    • Place of Presentation
      Brisbane Convention and Exhibition Centre, Brisbane, Australia (Poster).
    • Year and Date
      20100804-20100808
  • [Presentation] ニッパヤシ根圏に生息するBurkholderia属細菌群の系統分析とそれらの窒素固定能の検定2010

    • Author(s)
      橋床泰之, Sui-Yan Tang, Lulie Melling, Kah-Joo Goh.
    • Organizer
      日本土壌肥料学会大会(口頭発表6-5)
    • Place of Presentation
      札幌,北大農学部
    • Year and Date
      2010-09-07
  • [Presentation] Peroxynitrite scavenging activity of betalains isolated from beetroot and its reaction products.2009

    • Author(s)
      Makiko Maeda, Yasuko Sakihama, Yasuyuki Hashidoko
    • Organizer
      Plant Biology (P60039)
    • Place of Presentation
      Hawaii Convention Center, Honolulu
    • Year and Date
      20090718-20090722
  • [Presentation] Preliminary structure determination of water insoluble polysaccharide extracted from soil bacteria2009

    • Author(s)
      J.Wongchawalit, Y.Hashidoko, M.Okuyama, H.Mori, S.Chiba, A.Kimura
    • Organizer
      8th Carbohydrate Bioengineering Meeting
    • Place of Presentation
      Ischia, Italy
    • Year and Date
      20090510-20090513

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Published: 2012-02-13   Modified: 2016-04-21  

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