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2010 Fiscal Year Final Research Report

Novel Aluminum-defense Mechanisms of Woody Plants in Making Efficient Excretion of Organic Anions

Research Project

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Project/Area Number 20688006
Research Category

Grant-in-Aid for Young Scientists (A)

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

Principal Investigator

OSAWA Hiroki  東京大学, 大学院・農学生命科学研究科, 助教 (20688006)

Co-Investigator(Renkei-kenkyūsha) TANGE Takeshi  東京大学, 大学院・農学生命科学研究科, 教授 (20179922)
KOJIMA Katsumi  東京大学, アジア生物資源環境研究センター, 教授 (80211895)
Project Period (FY) 2008 – 2010
Keywordsアルミニウム / 酸性土壌 / プロアントシアニジン / 根 / フラボノイド / ボーダーセル
Research Abstract

Aluminum (Al) is a major harmful metal that inhibits plant growth in acid soils, especially in marginal lands of tropic region where low soil pH strengthens its toxicity. Although the physiological and molecular background of Al resistance of most crop species is now well understood, there is a great lack of understanding of the mechanisms of Al resistance in the strongest Al-resistant crops and plant species. We have evaluated the mechanisms of a high Al resistance of several woody plant species, focusing on phenolic compounds that accumulate in root apices. Phenotypic observation with camphor tree (Cinnamomum camphora) roots, which show strong Al-resistance with small citrate release, has identified proanthocyanidins (Pas) accumulate in the innermost cell layer of lateral root cap. The cell profiling has revealed that PA-accumulating cells in the root elongation zone protect the underlying root cells from Al accumulation and thus from Al-induced inhibition of cell expansion in camphor tree. These results suggest that PA accumulation in root apex of some woody plants may function as an effective barrier to shield the expansion of inner cells against Al. These findings provide a novel strategy that inducing PA accumulation in the root apex may potentiate the long-term and high Al resistance in plants.

  • Research Products

    (26 results)

All 2012 2011 2010 2009 2008 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results) Presentation (19 results) Remarks (1 results)

  • [Journal Article] The rapid accumulation of aluminum is ubiquitous in both the evergreen and deciduous leaves of Theaceae and Ternstroemiaceae plants over a wide pH range in acidic soils2012

    • Author(s)
      Osawa H, Ikeda S, Tange T
    • Journal Title

      Plant and Soil

      Volume: (in press)

    • Peer Reviewed
  • [Journal Article] Transient proliferation of proanthocyanidin-accumulating cells on the epidermal apex contributes to highly aluminum-resistant root elongation in camphor tree2011

    • Author(s)
      Osawa H, Endo I, Hara Y, Matsushima Y, Tange T
    • Journal Title

      Plant Physiology

      Volume: 155 Pages: 443-446

    • Peer Reviewed
  • [Journal Article] A cell-type-specific defect in border cell formation in the Acacia mangium root cap developing an extraordinary sheath of sloughed-off cells2011

    • Author(s)
      Endo I, Tange T, Osawa H
    • Journal Title

      Annals of Botany

      Volume: 108 Pages: 279-290

    • Peer Reviewed
  • [Journal Article] Effects of evening and nighttime leaf wetting on stomatal behavior of Cryptomeria japonica growing in dry soil2009

    • Author(s)
      Tange T, Yanaga K, Osawa H, Masumori M
    • Journal Title

      Photosynthetica

      Volume: 47 Pages: 313-316

    • Peer Reviewed
  • [Journal Article] The protective role of a unique tissue detachment on root cap cells in a strong aluminum-resistant tree Acacia mangium2009

    • Author(s)
      Endo I, Tange T, Osawa H
    • Journal Title

      The Proceedings of the International Plant Nutrition Colloquium XVI

    • URL

      http://escholarship.org/uc/item/3028n08z

    • Peer Reviewed
  • [Journal Article] Long-term and highly aluminum-resistant root elongation in a camphor tree Cinnamomum camphora2009

    • Author(s)
      Osawa H, Matsushima Y, Tange T
    • Journal Title

      The Proceedings of the International Plant Nutrition Colloquium XVI

    • URL

      http://escholarship.org/uc/item/5x71985r

    • Peer Reviewed
  • [Presentation] Transient proliferation of proanthocyanidin-accumulating cells on the epidermal apex contributes to highly aluminum-resistant root elongation in camphor tree2012

    • Author(s)
      大澤裕樹
    • Organizer
      第123回日本森林学会大会
    • Place of Presentation
      宇都宮大学, 宇都宮市
    • Year and Date
      20120326-28
  • [Presentation] 木本性種の根端細胞におけるプロアントシアニジン局在の細胞学的解析2012

    • Author(s)
      大澤裕樹・遠藤いず貴・丹下健
    • Organizer
      第123回日本森林学会大会
    • Place of Presentation
      宇都宮大学, 宇都宮市
    • Year and Date
      20120326-28
  • [Presentation] The roles of flavonoid accumulation on strong aluminum-resistance in roots of woody plants2011

    • Author(s)
      Osawa H, Endo I, Hara Y, Matsushima Y, Tange T
    • Organizer
      3rd Japan-China Joint Workshop on Plant Nutrition
    • Place of Presentation
      倉敷芸文館, 倉敷市
    • Year and Date
      20110327-29
  • [Presentation] 木本植物におけるプロアントシアニジンとアルミニウムの空間集積性の解析2011

    • Author(s)
      大澤裕樹・池田信輔・松島雄紀・丹下健
    • Organizer
      第122 回日本森林学会大会
    • Place of Presentation
      静岡大学, 静岡市
    • Year and Date
      20110325-28
  • [Presentation] ツバキ科種のアルミニウム移行集積とプロアントシアニジン集積の関連解析2010

    • Author(s)
      大澤裕樹・池田信輔・松島雄紀・丹下健
    • Organizer
      日本土壌肥料学会2010 年度北海道大会
    • Place of Presentation
      北海道大学, 札幌市
    • Year and Date
      20100906-08
  • [Presentation] 高アルミニウム耐性を分けるメラルーカ根端集積性プロアントシアニジンの構成解析2010

    • Author(s)
      原有香里・大澤裕樹・丹下健
    • Organizer
      日本土壌肥料学会2010年度北海道大会
    • Place of Presentation
      北海道大学, 札幌市
    • Year and Date
      20100906-08
  • [Presentation] 高アルミニウム耐性に関連した樹木根の新規ボーダーセルの生理・生化学特性の解析2010

    • Author(s)
      遠藤いず貴・大澤裕樹・丹下健
    • Organizer
      日本土壌肥料学会2010年度北海道大会
    • Place of Presentation
      北海道大学, 札幌市
    • Year and Date
      20100906-08
  • [Presentation] 木本植物におけるプロアントシアニジン集積の組織特異性2010

    • Author(s)
      大澤裕樹・松島雄紀・池田信輔・丹下健
    • Organizer
      第121回日本森林学会大会
    • Place of Presentation
      筑波大学, つくば市
    • Year and Date
      20100402-05
  • [Presentation] Acacia mangiumにおける根からのプロアントシアニジン細胞離脱の形式と役割2010

    • Author(s)
      遠藤いず貴・大澤裕樹・丹下健
    • Organizer
      第121回日本森林学会大会
    • Place of Presentation
      筑波大学, つくば市
    • Year and Date
      20100402-05
  • [Presentation] 高アルミニウム耐性メラルーカ根のプロアントシアニジン集積パターンと組成解析2010

    • Author(s)
      原有香里・大澤裕樹・丹下健
    • Organizer
      第121回日本森林学会大会
    • Place of Presentation
      筑波大学, つくば市
    • Year and Date
      20100402-05
  • [Presentation] 木本植物根における高アルミニウム耐性とフラボノイド集積との関連性解析2009

    • Author(s)
      松島雄紀・大澤裕樹・丹下健
    • Organizer
      日本土壌肥料学会2009年度京都大会
    • Place of Presentation
      京都大学, 京都市
    • Year and Date
      20090915-17
  • [Presentation] 高アルミニウム耐性樹木Acacia mangiumの根端から離脱する組織の系列解析2009

    • Author(s)
      遠藤いず貴・大澤裕樹・丹下健
    • Organizer
      日本土壌肥料学会2009年度京都大会
    • Place of Presentation
      京都大学, 京都市
    • Year and Date
      20090915-17
  • [Presentation] The protective role of a unique tissue detachment on root cap cells in a strong aluminum-resistant tree Acacia mangium2009

    • Author(s)
      Endo I, Tange T, Osawa H
    • Organizer
      The Proceedings of the International Plant Nutrition Colloquium XVI
    • Place of Presentation
      Sacramento, CA
    • Year and Date
      20090826-30
  • [Presentation] Long-term and highly aluminum-resistant root elongation in a camphor tree Cinnamomum camphora2009

    • Author(s)
      Osawa H, Matsushima Y, Tange T
    • Organizer
      The Proceedings of the International Plant Nutrition Colloquium XVI
    • Place of Presentation
      Sacramento, CA
    • Year and Date
      20090826-30
  • [Presentation] Acacia mangium根端における組織離脱の細胞系列解析2009

    • Author(s)
      遠藤いず貴・大澤裕樹・丹下健
    • Organizer
      第120回日本森林学会大会
    • Place of Presentation
      京都大学, 京都市
    • Year and Date
      20090326-28
  • [Presentation] 木本根端のフラボノイド集積とアルミニウム耐性の網羅的解析2009

    • Author(s)
      松島雄紀・大澤裕樹・丹下健
    • Organizer
      第120回日本森林学会大
    • Place of Presentation
      京都大学, 京都市
    • Year and Date
      20090326-28
  • [Presentation] アルミニウム耐性の異なる樹木根のフラボノイドの生化学解析2009

    • Author(s)
      大澤裕樹・松島雄紀・遠藤いず貴・丹下健
    • Organizer
      第120回日本森林学会大会
    • Place of Presentation
      京都大学, 京都市
    • Year and Date
      20090326-28
  • [Presentation] 木本植物に固有な高アルミニウム耐性機構2009

    • Author(s)
      大澤裕樹
    • Organizer
      第18回バイテク林木育種研究会
    • Place of Presentation
      京都大学, 京都市
    • Year and Date
      2009-03-28
  • [Presentation] アルミニウム耐性を示すAcacia mangium根端で離脱する組織の形成過程の解析2008

    • Author(s)
      遠藤いず貴・大澤裕樹・丹下健
    • Organizer
      日本土壌肥料学会2008年度愛知大会
    • Place of Presentation
      名古屋市立大, 名古屋市
    • Year and Date
      20080909-13
  • [Remarks]

    • URL

      http://silva.fr.a.u-tokyo.ac.jp/

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Published: 2013-07-31  

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