title: Ultrastructural observations on possible sites of steroid biosynthesis in the ovarian follicular epithelium of two species of cichlid fish, Cichlasoma nigrofasciatum and Haplochromis multicolor.
mesh_terms: D000818:Animals; D002462:Cell Membrane / Q000254:growth & development; D004721:Endoplasmic Reticulum / Q000254:growth & development; D004847:Epithelial Cells; D004848:Epithelium / Q000378:metabolism*; D004967:Estrogens / Q000096:biosynthesis; D005260:Female; D005399:Fishes / Q000033:anatomy & histology*; D006651:Histocytochemistry; D006652:Histological Techniques; D008854:Microscopy, Electron; D008870:Microtubules; D008928:Mitochondria / Q000378:metabolism; D010053:Ovary / Q000166:cytology*; D010060:Ovulation; D012270:Ribosomes; D013045:Species Specificity; D013256:Steroids / Q000032:analysis / Q000096:biosynthesis* / Q000378:metabolism
chemical_list: D004967:Estrogens; D013256:Steroids