First identification of a putative sex pheromone in a praying mantid
First identification of a putative sex pheromone in a praying mantid
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DOI：
10.1023/b:joec.0000013188.79411.18
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发表时间：
2004-01-01
影响因子：
2.3
通讯作者：
Portman, RT
中科院分区：
文献类型：
--
作者：
Hurd, LE;Prete, FR;Portman, RT
螳螂是广泛的行为、生理和生态学研究的模型，性信息素被认为是它们生物学的重要组成部分。然而，迄今还没有鉴定出螳螂信息素。采用固相微萃取(SPME)技术，采集了线形螳螂雌虫释放的挥发物。质谱分析表明，收集到的挥发物是十五醛和十四醛的混合物。我们准备了这些化合物的合成混合物，发现雄性都被这种混合物吸引，并被刺激表现出典型的交配前行为。然后，我们用扫描电子显微镜检查了雄性触角，证实了昆虫信息素受体典型的多孔性触角感受器的存在，即雄性螳螂配备了适当的形态装置来接收挥发性化学信号。因此，信息素与视觉和触觉线索结合在一起，是这种螳螂繁殖生物学的一个重要特征，毫无疑问，其他种类的螳螂也是如此。除了将行为生物学的一个重要方面添加到我们对这一群体的了解之外，识别和合成螳螂信息素可能是吸引和聚集这些通用捕食者用于害虫控制的第一步。
Praying mantids are models for a wide variety of behavioral, physiological, and ecological studies, and sex pheromones have been assumed to be important components of their biology. However, no mantid pheromone has ever been identified. We collected volatiles emitted by females of the mantid, Sphodromantis lineola, via solid phase microextraction ( SPME). Mass spectral analysis revealed the collected volatiles to be a mixture of pentadecanal and tetradecanal. We prepared a synthetic mixture of these compounds, and found that males were both attracted to this mixture and stimulated to exhibit typical precopulatory behavior. We then examined male antennae with scanning electron microscopy, and confirmed the presence of porous antennal sensilla typical of insect pheromone receptors, i.e., that male mantids are equipped with the appropriate morphological apparatus to receive volatile chemical signals. Pheromones, in conjunction with visual and tactile cues, are thus an important feature of the reproductive biology of this, and undoubtedly other species of mantids. In addition to adding a crucial aspect of behavioral biology to our knowledge of this group, identification and synthesis of mantid pheromones may be a first step in attracting and aggregating these generalist predators for use in pest control.