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Investigation of early stages of deacclimation process of boreal trees

Research Project

Project/Area Number 18K05718
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 40010:Forest science-related
Research InstitutionObihiro University of Agriculture and Veterinary Medicine

Principal Investigator

Kasuga Jun  帯広畜産大学, 畜産学部, 助教 (40451421)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords北方樹木 / 脱馴化 / 過冷却 / 木部柔細胞 / 冬芽 / トランスクリプトーム / プロテオーム / シラカンバ / 低温 / オミクス
Outline of Final Research Achievements

In this study, we investigated the mechanism of seasonal deacclimation of boreal trees induced by the increase of ambient temperature in early spring. The result of an experiment in which the responses of Japanese white birch xylem parenchyma cells to temperature shifts under dehydration stresses were investigated suggested that the dehydration stress under subfreezing temperatures did not involve in the temperature sensing mechanism leading to deacclimation in birch xylem parenchyma. In experiments using grape dormant buds, we suggested that cells in grape buds adapted to subfreezing temperatures by supercooling and that the cells initiated deacclimation at high subfreezing temperatures, e.g. -2C. we also suggested a possible involvement of vessel formation in the decrease of cold hardiness during deacclimation process in grape buds.

Academic Significance and Societal Importance of the Research Achievements

現在、地球規模の気候変動が世界的な問題となっており、冬から春にかけての気温が上昇することで、樹木が越冬のために十分な耐寒性を獲得することができず、凍霜害の頻度が増加することが懸念されている。本研究では、この時期に起こり得る樹木の細胞の温度応答を示したが、これは、温暖化の進行に伴う樹木の凍霜害のリスク予測につながる。また、耐寒性の低下機構の解明は、冬から春にかけての凍霜害を受けにくい樹木の育種に向けた指標の設定につながる可能性がある。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Cryo-scanning electron microscopy reveals that supercooling of overwintering buds of freezing-resistant interspecific hybrid grape ‘Yamasachi’ is accompanied by partial dehydration2020

    • Author(s)
      Kasuga Jun、Tsumura Yusuke、Kondoh Daisuke、Jitsuyama Yukata、Horiuchi Reiko、Arakawa Keita
    • Journal Title

      Journal of Plant Physiology

      Volume: 253 Pages: 153248-153248

    • DOI

      10.1016/j.jplph.2020.153248

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cold Hardiness of Wine Grape Variety 'Kiyomi' during Dormant Season in Tokachi Area2019

    • Author(s)
      Tsumura Y, Azuma H, Takahashi Y, Atucha A, Hirano N, Kasuga J
    • Journal Title

      Cryobiology and Cryotechnology

      Volume: 65 Issue: 2 Pages: 75-79

    • DOI

      10.20585/cryobolcryotechnol.65.2_75

    • NAID

      130007782652

    • ISSN
      1340-7902, 2424-1555
    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 北方樹木の寒冷環境適応機構の解明2019

    • Author(s)
      春日純
    • Journal Title

      低温生物工学会誌

      Volume: 65

    • NAID

      130007700252

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Presentation] 醸造用ブドウ品種「清見」における凍害発生機構2019

    • Author(s)
      津村祐輔, 平野夏輝, 東億, 高橋悠, Amaya Atucha, 春日純
    • Organizer
      第64回低温生物工学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Early processes of deacclimation in boreal hardwood species2018

    • Author(s)
      Jun Kausga, Maya Takeuchi
    • Organizer
      11th International Plant Cold Hardiness Seminar
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 北方樹木の寒冷環境適応機構の解明2018

    • Author(s)
      春日純
    • Organizer
      第63回低温生物工学会大会
    • Related Report
      2018 Research-status Report
  • [Book] Survival Strategies in Extreme Cold and Desiccation: Adaptation Mechanisms and Their Applications, Iwaya-Inoue M, Sakurai M, Uemura M eds.2018

    • Author(s)
      Keita Arakawa, Jun Kasuga, Naoki Takata
    • Total Pages
      409
    • Publisher
      Springer
    • ISBN
      9789811312441
    • Related Report
      2018 Research-status Report
  • [Remarks] 帯広畜産大学植物生理学研究室ホームページ

    • URL

      http://univ.obihiro.ac.jp/~plantphysiol/index.html

    • Related Report
      2020 Annual Research Report 2019 Research-status Report 2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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