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Clarification of accumulation mechanism of ascorbic acid into fruit of tropical plant acerola.

Research Project

Project/Area Number 24580143
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Applied biochemistry
Research InstitutionHiroshima University

Principal Investigator

ESAKA Muneharu  広島大学, 生物圏科学研究科, 教授 (70151975)

Co-Investigator(Kenkyū-buntansha) FUJIKAWA Yukichi  広島大学, 生物圏科学研究科, 講師 (10506687)
Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsアスコルビン酸 / ビタミンC / アセロラ / 遺伝子発現 / 遺伝子組換え / 酵素 / 転写調節 / シロイヌナズナ / プロモーター / 遺伝子 / 生合成 / 遺伝子組換え植物
Outline of Final Research Achievements

Acerola (Malpighia glabra), a myrtaceous fruit with an abundance of ascorbic acid is an excellent candidate for this. Ascorbic acid content in acerola fruit is about 50-fold that in lemon fruit. This study has focused on molecular mechanisms on ascorbic acid biosynthesis and accumulation in acerola fruit. The cDNA clones for ascorbic acid biosynthesizing enzymes have been isolated. The gene expression pattern of ascorbic acid biosynthesizing enzymes have been analyzed in acerola. The genomic genes for ascorbic acid biosynthesizing enzymes in acerola have also been cloned. Furthermore, in this study, the promoter fragments of genes for ascorbic acid biosynthesizing enzymes in acerola have been analyzed. Also, the effect of overexpression of the ascorbic acid biosynthesizing enzymes on the biosynthesis of ascorbic acid has been studied. Finally, transgenic tobacco plants with higher ascorbic acid contents have been generated.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (17 results)

All 2015 2013 2012 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results) Presentation (8 results) (of which Invited: 1 results) Remarks (5 results)

  • [Journal Article] Analysis of ascorbic acid biosynthesis using a simple transient gene expression system in tomato fruit protoplasts.2013

    • Author(s)
      Sakamoto S, Fujikawa Y, Esaka M.
    • Journal Title

      Biosci Biotechnol Biochem.

      Volume: 77 Pages: 673-675

    • NAID

      10031164797

    • Related Report
      2013 Research-status Report
    • Peer Reviewed
  • [Journal Article] Molecular cloning and characterization of L-galactose-1-phosphate phosphatase from tobacco (Nicotiana tabacum).2012

    • Author(s)
      Sakamoto S, Fujikawa Y, Tanaka N, Esaka M.
    • Journal Title

      Biosci Biotechnol Biochem.

      Volume: 76 Pages: 1155-1162

    • NAID

      10030818158

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Overexpression of the acerola (Malpighia glabra) monodehydroascorbate reductase gene in transgenic tobacco plants results in increased ascorbate levels and enhanced tolerance to salt stress.2012

    • Author(s)
      Eltelib HA, Fujikawa Y, Esaka M.
    • Journal Title

      S. Afr. J. Bot.

      Volume: 78 Pages: 295-301

    • NAID

      120005308220

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Journal Article] Characterization of secretory phospholipase A₂ with phospholipase A₁ activity in tobacco, Nicotiana tabacum (L.).2012

    • Author(s)
      Fujikawa Y, Fujikawa R, Iijima N, Esaka M.
    • Journal Title

      Lipids

      Volume: 47 Pages: 303-312

    • Related Report
      2012 Research-status Report
    • Peer Reviewed
  • [Presentation] アセロラにおけるアスコルビン酸生合成酵素GDP-D-mannose pyrophosphorylaseの転写調節機構の解明2015

    • Author(s)
      近藤 隆之、藤川 愉吉、江坂 宗春
    • Organizer
      日本農芸化学会2015年度大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2015-03-26 – 2015-03-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] トマトのアスコルビン酸生合成におけるガラクツロン酸レダクターゼの発現機構と生理機能2015

    • Author(s)
      末川 麻里奈、藤川 愉吉、江坂 宗春
    • Organizer
      日本農芸化学会2015年度大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2015-03-26 – 2015-03-29
    • Related Report
      2014 Annual Research Report
  • [Presentation] グローバル人材育成とJABEE2015

    • Author(s)
      江坂 宗春
    • Organizer
      日本農芸化学会2015年度大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2015-03-26 – 2015-03-29
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] トマトのアスコルビン酸生合成および生理機能に関する研究2015

    • Author(s)
      國川 彩香、末川麻里奈、坂本 真吾、藤川 愉吉、江坂 宗春
    • Organizer
      第 29 回バイオテクノロジー研究成果発表会
    • Place of Presentation
      広島市西区民文化センター
    • Year and Date
      2015-01-30
    • Related Report
      2014 Annual Research Report
  • [Presentation] アセロラにおけるアスコルビン酸生合成酵素遺伝子の発現解析2013

    • Author(s)
      近藤隆之,藤川愉吉,江坂宗春
    • Organizer
      日本農芸化学会関西・中四国・西日本支部 日本ビタミン学会近畿・中国四国・九州沖縄地区 2013年度 合同広島大会
    • Place of Presentation
      県立広島大学
    • Related Report
      2013 Research-status Report
  • [Presentation] トマトのアスコルビン酸生合成におけるガラクツロン酸レダクターゼの遺伝子発現に関する研究2013

    • Author(s)
      末川麻里奈、藤川愉吉、江坂宗春
    • Organizer
      日本農芸化学会関西・中四国・西日本支部 日本ビタミン学会近畿・中国四国・九州沖縄地区 2013年度 合同広島大会
    • Place of Presentation
      県立広島大学
    • Related Report
      2013 Research-status Report
  • [Presentation] アセロラのアスコルビン酸生合成酵素遺伝子の高発現機構の解明

    • Author(s)
      近藤隆之、八川恵梨香、Badejo A. Adebanjo、藤川愉吉、江坂宗春
    • Organizer
      日本農芸化学会2013年度大会
    • Place of Presentation
      東北大学
    • Related Report
      2012 Research-status Report
  • [Presentation] アセロラのアスコルビン酸高集積機構の解明

    • Author(s)
      近藤隆之、八川恵梨香、Badejo A. Adebanjo、藤川愉吉、江坂宗春
    • Organizer
      第27回バイオテクノロジー研究成果発表会
    • Place of Presentation
      広島市
    • Related Report
      2012 Research-status Report
  • [Remarks] 酵素化学へようこそ

    • URL

      http://home.hiroshima-u.ac.jp/enzyme/indexj.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 江坂宗春教授

    • URL

      http://www.hiroshima-u.ac.jp/gsbs/interview/esaka/

    • Related Report
      2014 Annual Research Report
  • [Remarks] 江坂宗春

    • URL

      http://seeds.hiroshima-u.ac.jp/soran/e63b8b3/index.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 酵素化学研究室にようこそ

    • URL

      http://home.hiroshima-u.ac.jp/enzyme/indexj.html

    • Related Report
      2013 Research-status Report
  • [Remarks] 酵素化学研究室

    • URL

      https://sites.google.com/site/enzymechemlab/home/research

    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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