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Effect of conbined factors of boron deficiency and inhibition of transpiration on the development of cuticle cracking in tomato fruits

Research Project

Project/Area Number 18K05610
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 39030:Horticultural science-related
Research InstitutionYamagata University

Principal Investigator

Nishizawa Takashi  山形大学, 農学部, 教授 (10208176)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsつやなし果 / ホウ素 / 摘葉 / オーキシン / トマト / マイクロクラッキング / クチクラ / 剛性 / エピクチクラワックス / ホウ酸 / 果実肥大 / 蒸散
Outline of Final Research Achievements

"Tsuyanashi-ka" of tomato fruit is a micro-cracking occurred on the cuticle layer of the epidermal layer. Micro-cracked fruit increases transpiration from the fruit surface and invasion of micro-organisms, resulting in the shortening of the shelf life. In this study, I found that boron deficient condition induced micro-cracking as well as the non-fertilized fruit, suggesting that the micro-cracking of tomato fruits might be influenced by the fertilization. Therefore, defoliation, application of auxin, and pollination by honey-bees were conducted for inducing the fertilization and seed formation. As the result, these treatments effectively inhibited the occurrence of micro-cracking of tomato fruits.

Academic Significance and Societal Importance of the Research Achievements

トマトの「つやなし果」は果実表皮のクチクラ層に微細な亀裂が入る生理障害で,亀裂が入った果実は蒸散量が増加し,病原菌の侵入が容易となるため,日持ち性が悪く商品価値を損なう.今回の研究により,ホウ素欠乏条件下でトマトを育てると,「つやなし果」の発生が促進されることを明らかにした.しかし,ホウ素欠乏はトマトの受精や種子形成にも影響することから,摘葉,オーキシン散布,マルハナバチによる授粉といった,果実内のホルモンバランスを変える処理を行ったところ「つやなし果」の発生を抑制することができた.こうした結果は学術的のみならず,商業的な「つやなし果」対策にも対応可能な技術開発に繋がる結果である.

Report

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

    (6 results)

All 2020 2019 Other

All Int'l Joint Research (2 results) Presentation (3 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Int'l Joint Research] チェンマイ大学(タイ)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] チェンマイ大学(タイ)

    • Related Report
      2018 Research-status Report
  • [Presentation] 陰イオン吸着資材の土壌混和が野菜類の生育と養分吸収に及ぼす影響2020

    • Author(s)
      伊藤政憲・西沢 隆・山崎紀子
    • Organizer
      園芸学会令和2年度春季大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Boron deficiency enhances microcracking of immature tomato fruit2019

    • Author(s)
      Marietta Gonroudobou and Takashi Nishizawa
    • Organizer
      UGAS international symposium -Thai-Japan Agricultural Science-
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Effect of B on the microcracking of tomato fruit2019

    • Author(s)
      GONROUDOBOU Gnon Bouanra Marietta
    • Organizer
      1st international symposium on Recent trend/technology of food security and management in Asia.
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Remarks] 山形大学農学部野菜園芸学研究室

    • URL

      http://www.tr.yamagata-u.ac.jp/~nisizawa/

    • Related Report
      2018 Research-status Report

URL: 

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

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