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Studies on the Changes in the Distribution of Cell Wall Modification in Floral and Fruit Abscission Zones during Fruit Development in Tomato.

Research Project

Project/Area Number 25440125
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Plant molecular biology/Plant physiology
Research InstitutionUniversity of Tsukuba

Principal Investigator

IWAI Hiroaki  筑波大学, 生命環境系, 准教授 (30375430)

Project Period (FY) 2013-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords離層 / 器官脱離 / 細胞壁 / エクスパンシン / XTH / キシログルカン / リグニン / トマト
Outline of Final Research Achievements

Regulation of cell wall metabolism may play an important role in abscission, but it is not well understood. In the study, we used immunohistochemistry to visualize changes in the distributions of xyloglucan metabolism-related enzymes in the AZs of pollinated and unpollinated flowers, and in ripened fruits. During floral abscission, we observed a gradual increase of expansin in the AZ. However, during floral abscission, we observed a large 1 day post anthesis peak in XTH in the AZ, which then decreased. During fruit abscission, unlike during floral abscission, no AZ-specific expansin and XTH were observed. Although lignification was seen in the AZ of over-ripe fruit pedicels, secondary cell wall-specific cellulose synthase signals were not observed. These results suggest that expansin and XTH play important, but different roles in the floral abscission process and cellulose metabolism-related enzymes do not play important roles in the AZ prior to fruit abscission.

Report

(4 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • 2013 Research-status Report
  • Research Products

    (11 results)

All 2016 2015 2014 2013

All Journal Article (5 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Invited: 1 results) Book (2 results)

  • [Journal Article] Distribution of XTH, Expansin and Secondary-wall-related Ces in Floral and Fruit Abscission Zones during Fruit Development in Tomato (Solanum lycopersicum)2015

    • Author(s)
      Tsuchiya, M., Satoh, S., Iwai, H.
    • Journal Title

      Frontiers in Plant Science

      Volume: 6 Pages: 323-323

    • DOI

      10.3389/fpls.2015.00323

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Regulatory Specialization of Xyloglucan(XG)and Glucuronoarabinoxylan (GAX) in Pericarp Cell Walls during Fruit Ripening in Tomato (Solanum lycopersicum)2014

    • Author(s)
      A. Takizawa, H. Hyodo, K. Wada, T. Ishii, S. Satoh, H. Iwai
    • Journal Title

      PLoS One

      Volume: 9(2): e89871 Issue: 2 Pages: e89871-e89871

    • DOI

      10.1371/journal.pone.0089871

    • Related Report
      2014 Research-status Report 2013 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Changes in the distribution of cell wall polysaccharides in early fruit pericarp and ovule, from fruit set to early fruit development, in tomato (Solanum lycopersicum).2013

    • Author(s)
      Terao. A., Satoh. S., and Iwai, H.
    • Journal Title

      J. Plant Res.

      Volume: 126 Issue: 5 Pages: 719-728

    • DOI

      10.1007/s10265-013-0555-5

    • NAID

      10031195174

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Tissue specific localization of pectin-Ca2+ cross-linkages and pectin methyl-esterification during fruit ripening in tomato (Solanum lycopersicum)2013

    • Author(s)
      H. Hyodo, A. Terao, J. Furukawa, N. Sakamoto, H. Yurimoto, S. Satoh, H. Iwai.
    • Journal Title

      PLoS One

      Volume: 8(11): e78949 Issue: 11 Pages: e78949-e78949

    • DOI

      10.1371/journal.pone.0078949

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] 器官脱離2013

    • Author(s)
      岩井宏暁
    • Journal Title

      植物細胞壁

      Volume: - Pages: 160-162

    • Related Report
      2013 Research-status Report
  • [Presentation] 落花および落果過程の離層における細胞壁代謝関連タンパク質の変化2015

    • Author(s)
      土屋 結実、佐藤 忍、岩井 宏暁
    • Organizer
      日本植物学会第79回大会
    • Place of Presentation
      新潟県新潟市、新潟コンベンションセンター
    • Year and Date
      2015-09-06
    • Related Report
      2015 Annual Research Report
  • [Presentation] Ca欠乏条件下のトマト果実成熟過程における細胞壁マトリックス多糖類の合成制御機構の解析2014

    • Author(s)
      宮地桃子、佐藤忍、岩井宏暁
    • Organizer
      日本植物学会第78回大会
    • Place of Presentation
      明治大学 生田
    • Year and Date
      2014-09-12
    • Related Report
      2014 Research-status Report
  • [Presentation] トマト果実軟化過程における細胞壁再構築機構2014

    • Author(s)
      岩井宏暁
    • Organizer
      園芸学会
    • Place of Presentation
      筑波大学 つくば市
    • Related Report
      2013 Research-status Report
    • Invited
  • [Presentation] CHANGES IN DISTRIBUTION OF CELL WALL POLYSACCHARIDES IN FLORAL AND FRUIT ABSCISSION ZONES DURING FRUIT DEVELOPMENT IN TOMATO2013

    • Author(s)
      Terao A., Hyodo H., Satoh S. and Iwai H.
    • Organizer
      24th International Conference on Arabidopsis Research
    • Place of Presentation
      シドニー オーストラリア
    • Related Report
      2013 Research-status Report
  • [Book] 生命誌2016

    • Author(s)
      岩井宏暁
    • Total Pages
      5
    • Publisher
      JT生命誌研究館
    • Related Report
      2015 Annual Research Report
  • [Book] BRHカード2016

    • Author(s)
      岩井宏暁
    • Total Pages
      3
    • Publisher
      JT生命誌研究館
    • Related Report
      2015 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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