Sanchez M G, Manrique G, Lazzari C R
Departamento de Ciencias Biológicas, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina.
Mem Inst Oswaldo Cruz. 1995 Sep-Oct;90(5):649-51. doi: 10.1590/s0074-02761995000500022.
The stimulus provided by a copulating pair of Triatoma infestans significantly affects the electrical activity of the nervous system of Triatoma infestans. Electrophysiological recordings were performed on stationary adult males presented with stimuli of an air current carrying odors from males, females, non-copulating pairs and mating pairs. The electrophysiological response was characterized by the low frequency occurrence of biphasic compound impulses. A significant increase in the frequency of the impulses occurred in stationary males when exposed to air currents of mating pairs, when compared to that evoked by a clean air stream. Analysis of the time course of the assays, showed that the electrophysiological activity during the copula was higher than prior to or after copula. The electrophysiological evidence presented here strongly supports the existence of pheromone(s) released by one or both sexes during mating and which is perceived by male chemoreceptors located on the antennae.
一对交配的骚扰锥蝽所提供的刺激会显著影响骚扰锥蝽神经系统的电活动。对静止的成年雄虫进行电生理记录，这些雄虫会受到携带来自雄虫、雌虫、未交配配对和交配配对气味的气流刺激。电生理反应的特征是双相复合冲动的低频出现。与清洁气流诱发的情况相比，当静止雄虫暴露于交配配对的气流中时，冲动频率显著增加。对实验时间进程的分析表明，交配期间的电生理活动高于交配前或交配后。此处呈现的电生理证据有力地支持了在交配过程中由一方或双方释放的信息素的存在，且该信息素能被位于触角上的雄性化学感受器感知。
