title: Nucleolar ultrastructure during reversible inhibition of RNA synthesis in chick fibroblasts cultivated in vitro.
mesh_terms: D000818:Animals; D001562:Benzimidazoles / Q000494:pharmacology; D002466:Cell Nucleolus / Q000187:drug effects / Q000378:metabolism / Q000648:ultrastructure*; D002478:Cells, Cultured; D002642:Chick Embryo; D005347:Fibroblasts / Q000187:drug effects / Q000378:metabolism / Q000648:ultrastructure*; D011725:Pyridines / Q000494:pharmacology; D012313:RNA / Q000096:biosynthesis*; D013438:Sulfhydryl Compounds / Q000494:pharmacology
chemical_list: D001562:Benzimidazoles; D011725:Pyridines; D013438:Sulfhydryl Compounds; D012313:RNA