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The significance of phase transition from synthesis to degradation of starch in Pyrus spp.

Research Project

Project/Area Number 16H04871
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Horticultural science
Research InstitutionYamagata University

Principal Investigator

MURAYAMA HIDEKI  山形大学, 農学部, 教授 (40230015)

Co-Investigator(Kenkyū-buntansha) 板井 章浩  京都府立大学, 生命環境科学研究科, 教授 (10252876)
羽生 剛  愛媛大学, 農学研究科, 准教授 (60335304)
森 茂太  山形大学, 農学部, 教授 (60353885)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥16,640,000 (Direct Cost: ¥12,800,000、Indirect Cost: ¥3,840,000)
Fiscal Year 2019: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2018: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2017: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2016: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Keywordsセイヨウナシ / デンプン / 糖代謝 / 成熟 / 収穫後生理 / アミラーゼ / 炭水化物代謝 / 追熟 / ナシ属果実 / 果実成熟 / 炭水化物 / 糖 / 光合成 / 園芸学 / シグナル伝達 / 発現制御 / 農林水産物
Outline of Final Research Achievements

In pears, the rate of photosynthesis was higher in young fruit. Then it decreased and almost reached zero at 128 days after full bloom. At this time, the phase transition of starch occurred from accumulation to degradation. Fructose, glucose and sorbitol decreased at the same time It was confirmed that starch accumulated even in the tree. On the other hand, starch was not observed in the peduncle. This shows that tree functions as storage organ of photosynthesis assimilates, and that peduncle is merely the pathway of assimilates. Harvest itself promoted carbohydrate metabolism in the fruit. The expression patterns of beta-amylase genes were different between fruit during ripening and storage at cold temperature.

Academic Significance and Societal Importance of the Research Achievements

セイヨウナシにおいて,果実が光合成を行っていることを確認し,光合成速度がゼロになる時期に,デンプンの蓄積から分解への相転換が起こっていることを明らかにした。また,セイヨウナシの分解過程にβ-アミラーゼが重要であること,追熟中と低温貯蔵中で,β-アミラーゼ遺伝子の発現が異なることが判明した。これらは,世界ではじめての報告であり,学術的に意義がある。セイヨウナシでは,成熟期のデンプン含量(ヨード反応)が収穫時期の判定指標の1つになっており,デンプンはセイヨウナシの栽培においても重要な因子である。そのため,本研究の成果は,今後収穫時期の判定にも利用される可能性がある。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (15 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (10 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] INRA(スペイン)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] IRTA(スペイン)

    • Related Report
      2017 Annual Research Report
  • [Journal Article] Analysis of Fruit Lignin Content, Composition, and Linkage Types in Pear Cultivars and Related Species2020

    • Author(s)
      Zhang Lumin、Kamitakahara Hiroshi、Murayama Hideki、Ohsako Takanori、Itai Akihiro
    • Journal Title

      Journal of Agricultural and Food Chemistry

      Volume: 68 Issue: 8 Pages: 2493-2505

    • DOI

      10.1021/acs.jafc.9b07396

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ripening Characteristics and Pigment Changes in Russeted Pear Fruit in Response to Ethylene and 1-MCP2018

    • Author(s)
      Charoenchongsuk Nongluk、Matsumoto Daiki、Itai Akihiro、Murayama Hideki
    • Journal Title

      Horticulturae

      Volume: 4 Issue: 3 Pages: 22-22

    • DOI

      10.3390/horticulturae4030022

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Hydraulic Constraints to Whole-Tree Water Use and Respiration in Young Cryptomeria Trees under Competition2018

    • Author(s)
      Ferrio Juan、Kurosawa Yoko、Wang Mofei、Mori Shigeta
    • Journal Title

      Forests

      Volume: 9 Issue: 8 Pages: 449-449

    • DOI

      10.3390/f9080449

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Mechanical and anatomical investigation to assess the peel contribution in grape berries2019

    • Author(s)
      Hideki Murayama, Mitsuki Otake and Takashi Nishizawa
    • Organizer
      XV EUCARPIA Fruit Breeding and Genetics Symposium.a, Czech
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] セイヨウナシ果梗師管液のオミクス解析2019

    • Author(s)
      乙部 葵・廣瀬亮太郎・森本拓也・及川 彰・斉藤和季 ・森 仁志 ・村山秀樹 ・板井章浩
    • Organizer
      園芸学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] GA およびCPPU 処理がニホンナシ‘ゴールド二十世紀’の果実形質, リグニンおよび一次代謝物含量に及ぼす影響2019

    • Author(s)
      章 魯ビン・上高原 浩・及川 彰・斉藤 和季・村山 秀樹・大迫 敬義・板井 章浩
    • Organizer
      園芸学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ニホンナシ果実のスクロース含量に関与するD N A マーカーの開発2019

    • Author(s)
      佐藤みそら・西尾聡悟・寺上伸吾・齋藤寿広・山本俊哉・村山秀樹・板井章浩
    • Organizer
      園芸学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 自家および他家受粉が自家和合性品種‘おさゴールド’の果実形質に及ぼす影響2019

    • Author(s)
      中島由葵・山口俊春・金高信吾・虎尾亮・池田隆政・村山秀樹・平山隆志・森泉・松浦恭和・板井章浩
    • Organizer
      園芸学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Novel insights on the ripening pattern of 'Blanquilla' pears: a comparison study between on- and off-tree ripened fruit2018

    • Author(s)
      Jordi Gine Bordonaba, Violeta Lindo-Garcia, Gemma Echeverria, Gloria Bobo, Hideki Murayama, Christian Larrigaudicre
    • Organizer
      XIII International Pear Symposium
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ‘ゴールド二十世紀’ と ‘Alexandrine Douillard’ の果実生育期におけるリグニン含量および組成の解析2017

    • Author(s)
      章魯・上高原浩・大迫敬・村山秀樹・板井章浩
    • Organizer
      園芸学会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Quality changes of three sweet cherry cultivars during ripening on the tree and after harvest2017

    • Author(s)
      Pamela Ruzigana, Aline Clementine Ingabire, Michiaki Azuma and Hideki Murayama
    • Organizer
      8th International Cherry Symposium
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ナシ果実の成熟エチレン生成におけるシステムⅠからシステムⅡへの移行関連遺伝子の探索2016

    • Author(s)
      藤井美希・羽生剛・村山秀樹・児玉基一朗・板井章浩
    • Organizer
      園芸学会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Effects of 1-Methylcyclopropene and Ethylene Treatment on Ripening Characteristics of the ‘Silver Bell’ Pears2016

    • Author(s)
      B. Nugraha, N. Bintoro, J. Nugroho, A. Itai, and H. Murayama
    • Organizer
      The 2nd International Symposium on Agricultural and Biosystem Engineering
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-02-19  

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