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The mechanisms of differentiation of secondary xylem cells in hardwood species

Research Project

Project/Area Number 16K18732
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Wood science
Research InstitutionAkita Prefectural University

Principal Investigator

Kudo Kayo  秋田県立大学, 木材高度加工研究所, 客員研究員 (10757983)

Research Collaborator KIJIDANI yoshio  
TAKATA katsuhiko  
FUNADA ryo  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords広葉樹 / 道管 / 形成層活動 / 植物ホルモン / 二次木部細胞 / 道管配列 / 局所的加温処理 / 二次木部形成の季節性 / 広葉樹環孔材 / 広葉樹散孔材 / 葉のフェノロジー / 形成層
Outline of Final Research Achievements

The study was aimed to reveal the relationship between the level and the distribution of internal plant hormones and the morphology and the pattern of secondary xylem cells in hardwood species. We developed the methods to quantified the amount of plant hormones from thin sections. We tried to develop the new system to induce the different pattern of secondary xylem. We succeed in inducing many small vessels by the combination treatment of localized heating plus the application of NAA to the dormant stem of Quercus serrata. In addition, our monitoring of phenology of leaf, penology of xylem formation and seasonal change of internal IAA level in Robinia pseudoacacia suggested that cambial activity and patterning of vessels might not be controlled by only the level and the changes of the level of internal IAA.

Academic Significance and Societal Importance of the Research Achievements

内生植物ホルモンの量や分布に関する知見の不足は、広葉樹の二次木部細胞の分化制御機構の解明における大きな課題の一つであった。本研究課題の遂行により、自然条件下での二次木部分化と内生IAA量の変動に関する新規知見が得られた。また、今後、二次木部細胞の分化制御における植物ホルモンの役割を実験的に証明するために非常に有効な新たな定量解析方法や実験系を確立することができた。これらの知見や技術は、広葉樹のおける二次木部細胞分化制御機構の解明におけるブレイクスルーとなり、今後の研究を加速度的に進めることに貢献するものであり、広葉樹由来の木質バイオマスの生産・管理の科学的基盤となる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (13 results)

All 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results) Presentation (11 results) (of which Int'l Joint Research: 4 results)

  • [Journal Article] Effects of auxin-transport-inhibitor and defoliation on wood formation in locally-heated Abies homolepis2018

    • Author(s)
      Md Hasnat Rahman, Kayo Kudo, Shahanara Begum, Takahiro Muraishi, Yusuke Yamagishi, Satoshi Nakaba, Yuichiro Oribe, Chanhui Lee, Hyun-O Jin, Ryo Funada
    • Journal Title

      IAWA Journal

      Volume: 30 Pages: 353-371

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Formation of new networks of earlywood vessels in seedlings of the deciduous ring-porous hardwood Quercus serrata in springtime2018

    • Author(s)
      Kudo Kayo、Utsumi Yasuhiro、Kuroda Katsushi、Yamagishi Yusuke、Nabeshima Eri、Nakaba Satoshi、Yasue Koh、Takata Katsuhiko、Funada Ryo
    • Journal Title

      Trees

      Volume: 印刷中 Issue: 3 Pages: 725-734

    • DOI

      10.1007/s00468-018-1667-2

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] 落葉広葉樹における形成層活動と木部形成の季節性2019

    • Author(s)
      工藤佳世、雉子谷佳男、織部雄一朗、佐々木賢二、山岸祐介、半 智史、船田 良、高田克彦
    • Organizer
      第69回日本木材学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 落葉広葉樹環孔材コナラにおける孔圏道管の形成過程2019

    • Author(s)
      工藤佳世、内海泰弘、黒田克史、山岸祐介、半 智史、鍋嶋絵里、安江 恒、 船田 良、高田克彦
    • Organizer
      第130回日本森林学会大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] The formation of earlywood vessels in deciduous ring-porous hardwoods in earlyspring2019

    • Author(s)
      Kayo Kudo, Yasuhiro Utsumi, Eri Nabeshima, Katshishi Kuroda, Yusuke Yamagishi, Satoshi Nakaba, Koh Yasue, Ryo Funada, Katsuhiko Takata
    • Organizer
      4th Xylem International Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Formation of networks of earlywood vessels in a deciduous ring-porous hardwood, Quercus serrata2018

    • Author(s)
      Kayo Kudo, Yasuhiro Utsumi, Eri Nabeshima, Katsushi Kuroda, Yusuke Yamagishi, Satoshi Nakaba, Yoshihiro Hosoo, Koh Yasue, Ryo Funada, Katsuhiko Takata
    • Organizer
      SWST/JWRS International Convention
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 落葉広葉樹における形成層活動および木部形成の季節変化2018

    • Author(s)
      工藤佳世、佐々木賢二、佐藤博文、高田克彦
    • Organizer
      樹木年輪研究会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 休眠期コナラ苗木樹幹に対する局所的加温とNAA塗布の複合処理が木部形成に与える影響2018

    • Author(s)
      工藤佳世、織部雄一朗、Md Hasnat Rahman、山岸祐介、半 智史、船田 良、高田克彦
    • Organizer
      第68回日本木材学会大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 広葉樹環孔材および散孔材における形成層活動および二次木部形成の季節性2017

    • Author(s)
      工藤佳世、織部雄一朗、佐藤博文、山岸祐介、半智史、船田良、高田克彦
    • Organizer
      第67回日本木材学会大会
    • Place of Presentation
      九州大学(福岡市)
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 広葉樹環孔材にける水分通道ネットワークの三次元的可視化2017

    • Author(s)
      工藤佳世、山下大地、内海泰弘、佐々木賢二、高部圭司、高田克彦
    • Organizer
      第67回日本木材学会大会
    • Place of Presentation
      九州大学(福岡市)
    • Year and Date
      2017-03-17
    • Related Report
      2016 Research-status Report
  • [Presentation] Relationship between formation of earlywood vessels and growth of buds and shoots in a deciduous ring-porous hardwood, Quercus serrata.2017

    • Author(s)
      Kayo Kudo, Eri Nabeshima, Yasuhiro Utsumi, Shahanara Begum, Yuichiro Oribe, Yusuke Yamagishi, Satoshi Nakaba, Md Hasnat Rahman, Katsushi Kuroda, Koh Yasue, Katsuhiko Takata, Ryo Funada
    • Organizer
      IUFRO 2017 division5 Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The pattern of location of the first earlywood vessels in the current year’s xylem in a ring-porous hardwood, Quercus serrata.2017

    • Author(s)
      Kayo Kudo, Yuichiro Oribe, Shahanara Begum, Yusuke Yamagishi, Eri Nabeshima, Md hasnat Rahman, Satoshi Nakaba, Katsuhiko Takata, Ryo Funada
    • Organizer
      9th PRWAC 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 休眠期コナラ樹幹に対する局所的加温処理が孔圏道管形成に与える影響2017

    • Author(s)
      工藤佳世、織部雄一朗、鍋嶋絵里、Shahanara Begum、山岸祐介、半 智史、安江 恒、高田克彦、船田 良
    • Organizer
      2017年度樹木年輪研究会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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