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Female flowers to hail a pollinator who dropped in male-male called the pollinators and striving to be first

Research Project

Project/Area Number 15K18607
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Ecology/Environment
Research InstitutionKyoto University

Principal Investigator

TSUJI KAORU  京都大学, 生態学研究センター, 研究員 (40645280)

Research Collaborator OZAWA Rika  京都大学, 生態学研究センター, 研究員
TAKABAYASHI Junji  京都大学, 生態学研究センター, 教授
Project Period (FY) 2015-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2016: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsヒサカキ / 花形質 / 送粉者 / 雌雄差 / 双翅目 / 花 / 匂い / テナックス
Outline of Final Research Achievements

In this study, we investigated (1) whether there were sexual differences in floral traits of a dioecious plant, Eurya japonica including scent and nectar components, and (2) whether pollinators differently responded to different floral sexes. For floral scent, we did not detect significant difference in ion intensities (i.e., net amount of components) of a main component, α-pinene, but that of a minor component, δ-terpinolene was higher in male flowers. For nectar component, concentration of a main component, sucrose was higher in female flowers. Pollinators spent longer time on female flowers than male flowers. From these measurements and experiments, we revealed that several floral traits of E. japonica had sexual differences and that pollinators behaved differently on male versus female flowers.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • Research Products

    (4 results)

All 2017 2016 Other

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

  • [Int'l Joint Research] スタンフォード大学(米国)

    • Related Report
      2015 Research-status Report
  • [Presentation] ヒサカキの花の匂いと訪花者2017

    • Author(s)
      辻かおる, 小澤理香
    • Organizer
      日本生態学会
    • Place of Presentation
      東京、早稲田大学
    • Related Report
      2016 Annual Research Report
  • [Presentation] Floral scent and flower visitors on a dioecious fly-polinated shrub, Eurya japonica2016

    • Author(s)
      Kaoru Tsuji, Rika Ozawa
    • Organizer
      Ecological Society of America
    • Place of Presentation
      Fort Lauderdale, Florida (USA)
    • Year and Date
      2016-08-07
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Floral scent and flower visitors on a dioecious fly-pollinated shrub, Eurya japonica2016

    • Author(s)
      Kaoru Tsuji, Rika Ozawa
    • Organizer
      Ecological Society of America
    • Place of Presentation
      Fort Lauderdale, Florida (USA)
    • Year and Date
      2016-08-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-01-27  

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