Structural changes in gonadotropin-producing cells of male frogs, Rana nigromaculata, in the process of sexual maturation.
D000818:Animals; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D006065:Gonadotropins, Pituitary / Q000096:biosynthesis / Q000378:metabolism; D008297:Male; D010902:Pituitary Gland / Q000166:cytology / Q000502:physiology / Q000648:ultrastructure*; D011898:Ranidae / Q000502:physiology*; D012621:Seasons; D012741:Sexual Maturation; D013091:Spermatogenesis
D006065:Gonadotropins, Pituitary