The Establishment of Spermatogenesis in the Seminiferous Epithelium of the Pubertal Golden Hamster (Mesocricetus Auratus)
During pubertal development of the testes, germ cells pass initially through the complete succession of spermatogenic differentiation. Using the golden hamster as a model, this volume presents a comprehensive analysis of that establishing period of mammalian spermatogenesis. Detailed morphological and cell kinetic data of the pubertal seminiferous epithelium reveal a level of cellular organization and synchronization coming near to the adult situation. Characteristic, temporarily occurring perturbations of spermatogenic progression are related to specific delays of Sertoli or Leydig cell maturation, respectively. These results emphasize and specify the close structural and functional interdependence of germ and somatic cell development.
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118-Hydroxysteroid Dehydrogenase A-spermatogonia acrosome adult seminiferous epithelium adult spermatogenesis adult stages apoptosis apoptotic appearance arrested germ cell arrows barrier formation centrioles chromosomes Clermont Clermont and Perey cytoplasm days 12 days 26 degeneration degenerative developmental level developmental steps differentiation elongating spermatids enzyme germ cell associations germ cell development germ cell mitoses germ cell types glucocorticoids golden hamster Hilscher Histology Huckins Immunohistochemistry intercellular bridges labeling indices lanthanum leading germ cells leptotene spermatocytes Leydig cells Light micrographs maturation meiosis meiotic membrane Miething mitotic morphological morphology nuclear pachytene spermatocytes phase postmitotic/preleptotene spermatocytes present study prespermatogenesis progression of germ pubertal germ cell pubertal seminiferous epithelium Russell S-phase indices Sect seminiferous tubules semithin sections Sertoli cell barrier sperma spermatids of step spermato spermatogenic spermatogenic cycle stage VII step I-IV.1 step I.1 step V-VI.2 step VII-IX.2 synchronization temporal testicular development testis testosterone toluidine tubular lumen tubule sections tubule segments types of germ zygotene spermatocytes