OLFACTORY RESPONSES TO A FEMALE-ATTRACTING PHEROMONE IN THE NEWT, CYNOPS PYRRHOGASTER
OLFACTORY RESPONSES TO A FEMALE-ATTRACTING PHEROMONE IN THE NEWT, CYNOPS PYRRHOGASTER
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蝾螈对雌性吸引信息素的嗅觉反应
DOI：
10.1007/978-1-4615-4733-4_55
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发表时间：
1999
期刊：
影响因子：
2.4
通讯作者：
M. Ichikawa
中科院分区：
文献类型：
--
作者：
F. Toyoda;Y. Hayakawa;S. Kikuyama;M. Ichikawa
Sodefrin是一种蝾螈（Cynops pyrrhogaster）信息素，吸引性发育的同种雌性。这种信息素被认为是通过雌性蝾螈的嗅觉器官起作用的，因为对这种物质的吸引力被鼻腔和嗅球之间的单侧鼻孔堵塞或神经切断所消除。为了确定该信息素的作用部位，记录了性发育雌性蝾螈腹侧嗅上皮的嗅觉电图（EOG）。犁鼻上皮表现出更大的反应sodefrin比主要的嗅觉上皮。性发育不全的女性与催乳素（PRL）和促性腺激素治疗的EOG反应显着大于在治疗的男性或未治疗的女性。在卵巢切除的女性，EOG反应增强与PRL和雌激素的治疗。因此，可以得出结论，sodefrin的主要作用部位是犁鼻上皮，并且对sodefrin的反应性是性别依赖性和性别依赖性的。
Sodefrin is a newt (Cynops pyrrhogaster) pheromone that attracts sexually developed conspecific females. This pheromone has been considered to act through the olfactory organ of female newts since attraction to this substance is abolished by unilateral nostril plugging or nerve transection between the nasal cavity and the olfactory bulb. To determine the site of action of this pheromone, electro-olfactograms (EOGs) were recorded from the ventral olfactory epithelium of sexually developed female newts. The vomeronasal epithelium showed greater responses to sodefrin than the main olfactory epithelium. The EOG responses in sexually undeveloped females treated with prolactin (PRL) and gonadotropin were significantly greater than in hormone-treated males or untreated females. In ovariectomized females, the EOG response was enhanced by the treatment with PRL and estrogen. Thus, it was concluded that the main site of action of sodefrin is the vomeronasal epithelium and that the responsiveness to sodefrin is sex-dependent and hormone-dependent.