title: Ultrastructural study on nuclear-cytoplasmic relationships in oocytes of the African lungfish, Protopterus aethiopicus. II. The microtubular apparatus of the nuclear envelope.
mesh_terms: D000818:Animals; D002467:Cell Nucleus; D003593:Cytoplasm; D005260:Female; D005399:Fishes / Q000033:anatomy & histology*; D006652:Histological Techniques; D008854:Microscopy, Electron; D010053:Ovary / Q000033:anatomy & histology* / Q000166:cytology; D010063:Ovum / Q000166:cytology*