Caracterização celular dos testículos de leptodactylus macrosternum (anura: leptodactylidae).

Abstract

The study of the reproductive activity of species is of fundamental importance for understand the processes that organisms go through and adapt. The present work searched through a bibliographic survey. compare and analyze the similarities or differences among other representatives of amphibians, with emphasis on the histological relationship testicular during the spermatagenesis process. Through identification and description of the different cells found in the testes of Leptodactylus macrosternum. Forty-one specimens of the species were collected at Fazenda do Cajueiro. municipality of Catolé do Rocha/PB, from October 2013 to June 2014, through intensive auditory-visual searches in the trained areas. Then. the specimens were taken to the Amphibian Biosystems Laboratory (LABAN) - UFCG/CES where the specimens they were euthanized, photographed and identified. and afterwards. removed the gonads and performed histological cottes for mounting the slides. Germline cells were organized in cysts, within the seminiferous epithelium, with the presence of all the cells organized in different stages of differentiation, characterizing in a cystic spermatogenesis, a common feature in all amphibians. L. macrosternum, like this like the other species analyzed in this study, it presented histological characteristics identical testicular. Among the aspects studied, the only relevant difference was observed in the coloration of the gonads.