Ultrastructural evidence for two types of gonadotropic cells in the pituitary gland of the male three-spined stickleback, Gasterosteus aculeatus.

@article{Slijkhuis1978UltrastructuralEF,
  title={Ultrastructural evidence for two types of gonadotropic cells in the pituitary gland of the male three-spined stickleback, Gasterosteus aculeatus.},
  author={H. Slijkhuis},
  journal={General and comparative endocrinology},
  year={1978},
  volume={36 4},
  pages={
          639-41
        }
}
Abstract Of the four secretory cell types observed in the proximal pars distalis of the pituitary gland of the male stickleback, two types probably have a gonadotropic function. The activity of the type 1 cells may be related to the development and maintenance of viable spermatozoa in the seminiferous tubules in the testes, whereas the activity of the type 2 cells seems to be correlated with Leydig cell development.