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題 名 | Attraction of Female Oriental Fruit Fly, Bactrocera Dorsalis, to Terminalia Catappa Fruit Extracts in Wind Tunnel and Olfactometer Tests=以風洞及嗅覺檢定裝置測試欖仁果實萃取物對雌性東方果實蠅之誘引效果 |
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作 者 | Siderhurst, Matthew S.; Jang, Eric B.; | 書刊名 | 臺灣昆蟲 |
卷 期 | 26:1 民95.03 |
頁 次 | 頁45-55 |
分類號 | 433.3 |
關鍵詞 | 雌蟲誘引物; 欖仁; 甲基丁香油; 嗅覺化學傳訊物質; 果實蠅科; Female attractant; Tropical almond; Methyl eugenol; Semiochemicals; Tephritidae; |
語 文 | 英文(English) |
中文摘要 | 以三種不同試驗測試東方果實蠅寄主植物欖仁之果實萃取物對雌、雄蠅的誘引效果。室內多重選擇誘效測試顯示,雌蠅偏好欖仁果實乙醇萃取物。風洞試驗亦證實此項結果,且對成熟交尾過的雌蠅誘引效果明顯高於雄蠅、未成熟及未交尾雌蠅。於戶外誘效測試顯示欖仁果實乙醇萃取物處理組誘引東方果實蠅效果明顯優於對照組,但與室內試驗結果比較,捕獲的雌、雄蠅數目彼此間並無顯著差異。欖仁果實萃取物對雄蠅的誘引,可能是因為果實中含有甲基丁香油,此點已經由液相層析質譜儀分析獲得證實。令人意外的是,於戶外誘效試驗中,單獨使用甲基丁香油所獲獲的東方果實蠅中,約有四分之一是雌蠅。由上述試驗結果推測,雖然欖仁果實中對東方果實蠅誘引成分大部分仍未明瞭,甲基丁香油可能在果實較和寄主植物交互作用間扮演重中角色。甲基丁香油對雌蠅的誘引和欖仁果實中在在的Phenyl propanoid與遠古寄主假說的關係於文中討論。 |
英文摘要 | Extracts of the tropical almond fruit, Terminalia catappa L., a preferred host of the oriental fruit fly, bactrocera dorsalis (hendel) (Tephritidae: Dacini), were tested for attractancy with both male and female flies in three separate bioassays. Multi-choice laboratory olfactometer tests showed female biased responses to an ethanol extract of T. catappa. These results were confirmed by laboratory wind-tunnel experiments, with mature mated females responding significantly more to the ethanol extract than males, immature, or virgin females. Outdoor olfactometer tests with the ethanol extract showed strong attraction over the control, but in contrast to the laboratory bioassays, there were no differences between the numbers of males and females caught. The male activity is presumably due to the presence of methyl eugenol, which was identified in the T. catappa extracts by GC/MS analysis. Surprisingly, when methyl eugenol alone was tested in the outdoor olfactometer, a little over a quarter of the flies caught were female. These results suggest that while the compound(s) responsible for the attraction of B. dorsalis to T. catappa are largely unknown, methyl eugenol may play an important role in the interaction of fly and host. Female attraction to methyl eugenol and the presence of this phenyl propanoid in T. catappa are discussed in relation to the ‘ancestral host hypothesis’. |
本系統中英文摘要資訊取自各篇刊載內容。