Spermatogenesis and spermiogenesis in Microcotyle sp. (Microcotylidae, Monogenea).

  title={Spermatogenesis and spermiogenesis in Microcotyle sp. (Microcotylidae, Monogenea).},
  author={M F Diniz Baptista-Farias and Anna Kohn and Simone Chinicz Cohen},
  journal={The Journal of parasitology},
  volume={85 5},
Ultrastructural observations of spermatogenesis and spermiogenesis in Microcotyle sp. a microcotylid monogenean parasite from the gills of Hypostomus sp., are described. The spermatogonia were irregularly shaped, forming a peripheral layer of cells; spermatocytes were larger than spermatogonia and a nuclear synaptonemal complex was observed; young spermatids were joined by a central cytophore forming rosettes. Spermiogenesis was characterized by the outgrowth of a cytoplasmic protuberance, the… CONTINUE READING