2011 Fiscal Year Final Research Report
Flower odor in primitive pollination system and its ecological function
| Project/Area Number |
21580065
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Applied entomology
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| Research Institution | Mie University |
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Principal Investigator |
TSUKADA Morio 三重大学, 大学院・生物資源学研究科, 准教授 (20273352)
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| Co-Investigator(Kenkyū-buntansha) |
AKINO Toshiharu 京都工芸繊維大学, 工芸科学研究科, 准教授 (40414875)
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| Co-Investigator(Renkei-kenkyūsha) |
HIGUCHI Hirokazu 京都大学, 農学研究科, 准教授 (50303871)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 昆虫利用 / 機能開発 / 花粉媒介 / 甲虫 / 果樹 |
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| Research Abstract |
Flower odors of cherimoya and atemoya were investigated. These fruit trees are known to be pollinated by fruit-eating nitidulid beetles. GC and GC/MS revealed that most of the floral odor were esters. As esters are main components of fruits odor, it was suggested that Annona spp. flowers mimic fruits chemically to attract frugivorous nitidulid beetles as pollinators. A semiconductor gas sensor was used to clarify temporal change of odor intensity. In cherimoya, two peaks were found in the evening of female stage and male stage. In atemoya, peaks were found in the morning and evening, suggesting 12h cycle of floral activity.
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