title: Inhibition of ribosomal RNA synthesis in neurula cells by extracts from blastulae of Xenopus laevis.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D003470:Culture Media; D004591:Electrophoresis, Polyacrylamide Gel; D005260:Female; D006151:Guanosine / Q000378:metabolism; D010063:Ovum / Q000032:analysis* / Q000187:drug effects; D010472:Perchlorates; D012335:RNA, Ribosomal / Q000037:antagonists & inhibitors* / Q000096:biosynthesis; D012343:RNA, Transfer / Q000096:biosynthesis; D014020:Tissue Extracts / Q000494:pharmacology*; D014316:Tritium; D014529:Uridine / Q000378:metabolism; D014981:Xenopus / Q000196:embryology*
chemical_list: D003470:Culture Media; D010472:Perchlorates; D012335:RNA, Ribosomal; D014020:Tissue Extracts; D014316:Tritium; D006151:Guanosine; D012343:RNA, Transfer; D014529:Uridine