title: [Ultrastructure of the nucleolus during development of Paracentrotus lividus in the presence of actinomycin D].
mesh_terms: D002466:Cell Nucleolus / Q000648:ultrastructure*; D003609:Dactinomycin / Q000494:pharmacology*; D012617:Sea Urchins / Q000196:embryology / Q000648:ultrastructure*
chemical_list: D003609:Dactinomycin
vernacular_title: Ultrastruttura del nucleolo durante lo sviluppo di Paracentrotus lividus in presenza di actinomicina D