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首页> 外文期刊>Reproduction, fertility, and development >Structure, histochemistry and seasonal variations of the male reproductive accessory glands in the Pallas's mastiff bat, Molossus molossus (Chiroptera: Molossidae)
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Structure, histochemistry and seasonal variations of the male reproductive accessory glands in the Pallas's mastiff bat, Molossus molossus (Chiroptera: Molossidae)

机译:Pallas mast蝠Molossus molossus(鳞翅目:Molossidae)中雄性生殖附属腺的结构,组织化学和季节性变化

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摘要

Due to their wide geographical distribution, bats suffer considerable influence from abiotic factors on their reproductive strategies, detected through behavioural or functional assessment of the gonads and accessory glands. The present study aimed to characterise anatomically and morphologically the reproductive accessory glands (RAGs) of Molossus molossus (Molossidae) and evaluate their seasonal variations. The RAGs were removed, fixed, sectioned after histological processing and submitted to the following stains: haematoxylin-eosin, periodic acid-Schiff (PAS) and Gomori's reticulin. Our data demonstrated that the RAGs of M. molossus are composed of a semi-lobed prostatic complex associated with the urethra and a pair of inguinal bulbourethral glands. Histology and three-dimensional reconstruction of the prostatic complex demonstrated the existence of two regions: ventral and dorsal (named according to the position around the urethra). The two regions had distinctive morphological and histological differences, with the ventral region being the most prominent and the dorsal formed by four lobes. Considering the seasonal evaluation, we can infer that the prostatic complex of M. molossus is active throughout the seasons in Sao Paulo State (Brazil) and, although each of the prostatic regions has inherent characteristics, they synchronise to establish the main reproductive peak in spring (early rainy season).
机译:由于蝙蝠的地理分布广泛,它们的生殖策略受到非生物因素的很大影响,通过对性腺和附属腺的行为或功能评估发现它们。本研究旨在从解剖学和形态学上描述莫洛苏斯(Molossus molossus,Molossidae)的生殖附属腺(RAGs)并评估其季节性变化。组织学处理后,将RAGs去除,固定,切片,并进行以下染色:苏木精-伊红,高碘酸席夫(PAS)和Gomori's网状蛋白。我们的数据表明,M。molossus的RAGs由与尿道和一对腹股沟型尿道腺相关的半瓣前列腺复合体组成。组织学和前列腺复合体的三维重建表明存在两个区域:腹侧和背侧(根据尿道周围的位置命名)。这两个区域在形态和组织学上有明显的区别,腹侧区域最突出,背侧由四个叶形成。考虑到季节性评估,我们可以推断出桑树的前列腺复合体在整个巴西圣保罗州整个季节都活跃,尽管每个前列腺区域都有其固有特征,但它们同步建立了春季的主要生殖高峰。 (雨季初)。

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