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首页> 外文期刊>The European Journal of Neuroscience >Differential activation of glomeruli in the ferret's main olfactory bulb by anal scent gland odours from males and females: an early step in mate identification.
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Differential activation of glomeruli in the ferret's main olfactory bulb by anal scent gland odours from males and females: an early step in mate identification.

机译：雄性和雌性的肛门气味腺体气味使雪貂主要嗅球中的肾小球有不同的活化作用：这是伴侣识别的早期步骤。

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摘要

Abstract Peripheral anosmia was previously found to disrupt sex discrimination and partner preference in male and female ferrets. Here we show directly that volatile anal scent gland odourants from male and female ferrets activated overlapping but distinguishable clusters of glomeruli located in the ventral-caudal portion of the main olfactory bulb (MOB) of breeding ferrets of both sexes. No glomerular activation was seen in the accessory olfactory bulb (AOB). The profile of MOB glomerular activation induced in oestrous females by male anal scents was very similar to that induced by direct contact with a male during mating, and oestrogen treatment failed to alter the profile of glomerular activation induced in ovo-hysterectomized females by male anal scents. In rodents, 'atypical' MOB glomeruli, which have dense acetylcholinesterase (AChE) activity in the neuropil, may be activated by body odours from conspecifics. No such AChE-staining 'atypical' glomeruli were found in the ferret's MOB, suggesting that in this carnivore they do not constitute a subset of MOB glomeruli that respond to body odourants. In ferrets of both sexes, volatile body odourants that are detected by the main as opposed to the vomeronasal-AOB accessory olfactory system may play a critical role in mate identification.
机译：摘要先前发现周围性失眠会破坏男性和女性雪貂的性别歧视和伴侣偏好。在这里，我们直接显示出，来自雄性和雌性雪貂的挥发性肛门气味腺气味物质激活了重叠但可区分的肾小球簇，位于两性繁殖的雪貂主要嗅球（MOB）的腹-尾部分。在副嗅球（AOB）中未见肾小球活化。雄性肛门气味在雌性雌性中诱导的MOB肾小球激活的特征与交配过程中直接与雄性接触引起的相似，并且雌激素治疗未能改变雄性肛门气味在卵子-子宫切除后雌性中诱导的肾小球激活性状。 。在啮齿动物中，“非典型” MOB肾小球在神经纤维中具有致密的乙酰胆碱酯酶（AChE）活性，可能被同种异体的体味激活。在雪貂的MOB中没有发现这种AChE染色的“非典型”肾小球，这表明在这种食肉动物中，它们不构成对机体气味有反应的MOB肾小球的子集。在男女的雪貂中，与犁鼻-AOB辅助嗅觉系统相反，被主体检测到的挥发性身体气味可能在伴侣识别中起关键作用。

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