Nanometre-range acoustic sensitivity in male and female mosquitoes
Nanometre-range acoustic sensitivity in male and female mosquitoes
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DOI：
10.1098/rspb.2000.1021
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发表时间：
2000-03-07
影响因子：
4.7
通讯作者：
Robert, D
中科院分区：
文献类型：
--
作者：
Göpfert, MC;Robert, D
约翰斯顿触角底部的感觉器官在雄性蚊子身上充当运动声音探测器，感知同种雌性蚊子飞行声音引起的触角振动。同时对短翼弓形虫的声学诱发的触角振动和神经反应进行检测，现在已经证明了约翰斯顿器官在雄性和雌性身上都具有精致的声学和机械敏感性，令人惊讶的是，雌性也是如此。雌性约翰斯顿的器官比雄性的器官更不敏感。然而，它对声场中+/-11 nm空气粒子位移引起的天线+/-0.0005度偏转做出了响应，从而在灵敏度上超过了其他昆虫运动声音探测器。这些发现有力地表明，声音的接收在两性蚊子的感觉生态中都起着至关重要的作用。
Johnston's sensory organ at the base of the antenna serves as a movement sound detector in male mosquitoes, sensing antennal vibrations induced by the flight sounds of conspecific females. Simultaneous examination of acoustically elicited antennal vibrations and neural responses in the mosquito species Toxorhynchites brevipalpis has now demonstrated the exquisite acoustic and mechanical sensitivity of Johnston's organ in males and, surprisingly, also in females. The female Johnston's organ is less sensitive than that of males. Yet it responds to antennal deflections of +/- 0.0005 degrees induced by +/- 11 nm air particle displacements in the sound field, thereby surpassing the other insect movement sound detectors in sensitivity. These findings strongly suggest that the reception of sounds plays a crucial role in the sensory ecology of both mosquito sexes.