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Elucidation of the decision mechanism of flower opening time by melatonin

Research Project

Project/Area Number 26660021
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Horticultural science
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

Yamada Tetsuya  東京農工大学, (連合)農学研究科(研究院), 准教授 (20422511)

Project Period (FY) 2014-04-01 – 2016-03-31
Project Status Completed (Fiscal Year 2015)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywordsアサガオ / 開花時刻 / メラトニン / 花弁展開 / AANAT / ASMT / メラトニン合成遺伝子 / N-アセチルトリプタミン / メラトニン合成酵素遺伝子
Outline of Final Research Achievements

In this study, we confirmed that treatment of melatonin to the cut flowers of morning glory shortened the time of petal opening and hastened the clock time of flowering. Meanwhile, treatment of N- acetyl tryptamine, a melatonin synthesis inhibitor, was extend the time of petal opening and delayed the clock time of flowering. We also confirmed that transcript abundance of melatonin biosynthesis enzyme genes (InAANAT, InASMT) and melatonin content were increased in opening petals of morning glory cut flowers treated with the dark period of 12 hours. From these results, it is suggested that melatonin is involved with the dark period induced flower opening of morning glory.

Report

(3 results)
  • 2015 Annual Research Report   Final Research Report ( PDF )
  • 2014 Research-status Report
  • Research Products

    (2 results)

All 2015 2014

All Presentation (2 results)

  • [Presentation] アサガオにおける切り花の暗期誘導性の開花にはメラトニンが関与する2015

    • Author(s)
      山﨑洋平,山田哲也
    • Organizer
      第8回アサガオ研究集会
    • Place of Presentation
      筑波大学(茨城県つくば市)
    • Year and Date
      2015-03-06 – 2015-03-07
    • Related Report
      2014 Research-status Report
  • [Presentation] 暗期誘導性のアサガオ開花時の花弁におけるメラトニン合成関連遺伝子群の特異的発現2014

    • Author(s)
      山﨑洋平,小野華子,金勝一樹,山田哲也
    • Organizer
      園芸学会平成26年度秋季大会
    • Place of Presentation
      佐賀大学(佐賀県佐賀市)
    • Year and Date
      2014-09-26 – 2014-09-29
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2017-05-10  

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