Seasonal testicular changes in Dendropsophus minutus Peters, 1872 (Anura, Hylidae) ;



Título del documento: Seasonal testicular changes in Dendropsophus minutus Peters, 1872 (Anura, Hylidae) ;
Revista: Biocell
Base de datos: PERIÓDICA
Número de sistema: 000352018
ISSN: 0327-9545
Autores: 1
2
Instituciones: 1Universidade Federal de Mato Grosso, Instituto de Biociencias, Cuiaba, Mato Grosso. Brasil
2Universidade Estadual Paulista "Julio de Mesquita Filho", Laboratorio de Biologia de Peixes, Botucatu, Sao Paulo. Brasil
Año:
Volumen: 36
Número: 2
Paginación: 57-62
País: Argentina
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés The reproductive cycle in anurans may be either continuous or discontinuous. These differences may be connected to seasonal climate changes and/or to anthropic activity. Forty adult male individuals of the Dendropsophus minutus species were collected during one year, in the municipality of Chapada dos Guimarães (Mato Grosso, Brazil). The testicles were studied under light and transmission electron microscopy. No variations were observed when the diameter of the seminiferous tubules and the thickness of the interstitial tissue were studied. However, changes in spermatogenesis were conspicuous and indicated that the reproductive cycle of D. minutus in Chapada dos Guimarães is discontinuous and seems related to variations in air temperature and rainfall
Disciplinas: Biología
Palabras clave: Reproducción y desarrollo,
Anfibios,
Testículos,
Madurez gonádica,
Análisis histológico,
Espermatogénesis,
Dendropsophus minutus,
Hylidae
Keyword: Biology,
Reproduction and development,
Amphibians,
Testicles,
Gonadic maturity,
Histological analysis,
Spermatogenesis,
Dendropsophus minutus,
Hylidae
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