title: Ultrastructural changes in vitro of rat liver nucleoli in response to polyamines.
mesh_terms: D000818:Animals; D002458:Cell Fractionation; D002466:Cell Nucleolus / Q000187:drug effects; D002467:Cell Nucleus; D002843:Chromatin; D008099:Liver / Q000166:cytology / Q000187:drug effects*; D008297:Male; D008853:Microscopy; D008854:Microscopy, Electron; D011073:Polyamines / Q000494:pharmacology*; D012316:RNA Nucleotidyltransferases; D012335:RNA, Ribosomal / Q000096:biosynthesis; D051381:Rats; D011919:Rats, Inbred Strains; D013095:Spermidine / Q000494:pharmacology; D013096:Spermine / Q000494:pharmacology*
chemical_list: D002843:Chromatin; D011073:Polyamines; D012335:RNA, Ribosomal; D013096:Spermine; D012316:RNA Nucleotidyltransferases; D013095:Spermidine