Morphological study of the spermatogenesis in the teleost Piaractus mesopotamicus
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Data
2003-12-01
Autores
Cruz-Landim, Carminda [UNESP]
Abdalla, Fábio Camargo [UNESP]
Cruz-Hofling, M. A. da
Título da Revista
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Inst Histol Embriol-conicet
Resumo
The spermatogenesis of Piaractus mesopotamicus was investigated under light and transmission electron microscopy. The specimens were captured from their natural environment (Rio Miranda and Rio Aquidauana, Pantanal Matogrossense, Brazil) during April and September. The results were compared with the spermatogenic data of specimens under captivity condition. In both conditions, P mesopotamicus presented the typical spermatogenesis pattern of the teleost fishes, showing no significative differences. The spermatozoon was classified as type 1, which has a globular head without acrosome, a short middle piece and a long tail constituted only by the flagellum. This type of spermatozoon is considered the basic type in fishes.
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Palavras-chave
Piaractus mesopotamicus, spermatogenesis, spermatogonia, spermiogenesis, Teleostei
Como citar
Biocell. Mendoza: Inst Histol Embriol-conicet, v. 27, n. 3, p. 319-328, 2003.