In vitro development of seminiferous tubules from immature rat testis: ultrastructural and morphometric studies.
Seminiferous tubules from 5 day-old rats maintained in a semi-solid culture system were examined for 4, 8 or 12 days. Morphometric and ultrastructural studies show a significant increase in the seminiferous tubule diameter and normal Sertoli cell differentiation. All the germinal cells degenerate except the spermatogonia.
D000375:Aging; D000818:Animals; D008297:Male; D008854:Microscopy, Electron / Q000379:methods; D051381:Rats; D011919:Rats, Inbred Strains; D012671:Seminiferous Tubules / Q000254:growth & development* / Q000648:ultrastructure; D012708:Sertoli Cells / Q000502:physiology / Q000648:ultrastructure; D012741:Sexual Maturation; D013737:Testis / Q000254:growth & development*