Tipos de espermatogonios en "Tepezcuintle" (Cuniculus paca). Estudio ultraestructural

Ultraestructural studies of different types of espermatogonia by thin section techniques and tranamission electron microscopy showed that Cuniculus paca has two types of Type A spermatogonia (A-0 and A-1). Samples were taken at different stages of the cycle in the seminiferous tubule epithelium pres...

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Main Authors: Ureña Calderón, Francisco, Bolaños, Rodolfo, Rojas, Nancy, Suárez, Roberto, Quesada, Rafael
Format: artículo científico
Language: Español
Published: Universidad de Costa Rica 2016
Online Access: http://revistas.ucr.ac.cr/index.php/rbt/article/view/23721
https://hdl.handle.net/10669/27385
Summary: Ultraestructural studies of different types of espermatogonia by thin section techniques and tranamission electron microscopy showed that Cuniculus paca has two types of Type A spermatogonia (A-0 and A-1). Samples were taken at different stages of the cycle in the seminiferous tubule epithelium presented a similar pattern as those of other rodents. Type B spermatogonia are similar to those of the rat, the difference being that the heterochromatic zones are larger and more numerous. Both characteristics differentiate them from preleptotenic spermatocytes.