兰花 - 黄蜂授粉系统中性欺骗的化学作用
Florian P Schiestl1, Rod Peakall, Jim G Mant
1School of Botany and Zoology, The Australian National University, Canberra ACT 0200, Australia.
Science (New York, N.Y.)
|October 18, 2003
概括
兰花Chiloglottis trapeziformis模仿雌性黄蜂使用特定的气味来吸引雄性授粉者. 这种花式挥发物,2-乙基-5-基环-1,3-,作为Neozeleboria cryptoides黄蜂的关键性激素起作用.
科学领域:
- 植物学 植物学
- 昆虫学 昆虫学是一门学科.
- 化学生态化学生态学
背景情况:
- 性欺骗是兰花中一种已知的授粉策略.
- 奇洛洛蒂斯·特拉佩兹形状的特定授粉者是薄毛黄蜂Neozeleboria cryptoides.
研究的目的:
- 为了识别Chiloglottis trapeziformis发出的挥发性化合物,该化合物负责吸引Neozeleboria cryptoides雄性.
- 为了研究这种兰花与授粉者相互作用中的性欺骗的化学基础.
主要方法:
- 气色谱-质谱法 (GC-MS) 对兰花挥发物的分析.
- 兰花挥发性资料与已知的雌性黄蜂激素的比较.
主要成果:
- 奇洛洛蒂斯-特拉佩齐福米斯 (Chiloglottis trapeziformis) 排放的是2 - 乙基-5 - 基环合-1,3 - .
- 这种化合物与雌性Neozeleboria cryptoides黄蜂产生的男性吸引性激素相同.
结论:
- 兰花采用化学模仿雌性黄蜂性爱激素来吸引其授粉者.
- 这一发现为花香和昆虫激素的共同进化提供了洞察力.
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