title: Relationship of the genetic determination of impaired penicillin production in naturally occurring strains to that in induced mutants of Aspergillus nidulans.
mesh_terms: D001233:Aspergillus nidulans / Q000378:metabolism*; D002874:Chromosome Mapping; D003433:Crosses, Genetic; D005796:Genes; D009154:Mutation; D010406:Penicillins / Q000096:biosynthesis*
chemical_list: D010406:Penicillins