Possible involvement of nuclear DNA-like RNA in the control of ribosomal RNA synthesis.

Animals Basidiomycota Cell Nucleolus/drug effects,metabolism Cell Nucleus/drug effects,metabolism Chromatography, DEAE-Cellulose Cycloheximide/pharmacology DNA DNA-Directed RNA Polymerases/antagonists & inhibitors,metabolism Liver/cytology,drug effects,enzymology,metabolism Male Mycotoxins/pharmacology Oligopeptides/pharmacology Orotic Acid/metabolism Peptides, Cyclic/pharmacology RNA/metabolism RNA, Ribosomal/biosynthesis Rats Tritium Ultrasonics

Mycotoxins Oligopeptides Peptides, Cyclic RNA, Ribosomal Tritium Orotic Acid RNA DNA Cycloheximide DNA-Directed RNA Polymerases