Structure, histochemistry and seasonal variations of the male reproductive accessory glands in the Pallas's mastiff bat, Molossus molossus (Chiroptera: Molossidae)

Autor(es)

Christante, Caroline M. ^[1] ; Beguelini, Mateus R. ^[1] ; Puga, Cintia C. I. ^[1] ; Negrin, Ana C. ^[1] ; Morielle-Versute, Eliana ^[2] ; Vilamaior, Patricia S. L. ^[1] ; Taboga, Sebastiao R. ^[1]

Afiliação do(s) autor(es)

^[1] UNESP Univ Estadual Paulista, Dept Biol, BR-15054000 Sao Paulo - Brazil

^[2] UNESP Univ Estadual Paulista, Dept Bot & Zool, BR-15054000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: REPRODUCTION FERTILITY AND DEVELOPMENT; v. 27, n. 2, p. 313-322, 2015.
• Citações Web of Science: 8

Resumo

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). (AU)

• Processo FAPESP: 09/03470-2 - Morfo-fisiologia da Próstata de Morcegos: Estudo comparativo nas Famílias Phyllostomidae, Molossidae e Vespertilionidae
• Beneficiário: Sebastião Roberto Taboga
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 09/16181-9 - Análise Ultra-Estrutural e Imunocitoquímica da Espermatogênese e Nucleologênese de morcegos
• Beneficiário: Eliana Morielle Versute
• Modalidade de apoio: Auxílio à Pesquisa - Regular