title: Genetic studies in micro-organisms producing beta-lactam antibiotics.
mesh_terms: D000900:Anti-Bacterial Agents / Q000096:biosynthesis*; D001233:Aspergillus nidulans / Q000235:genetics; D003001:Cloning, Molecular; D004260:DNA Repair; D004271:DNA, Fungal / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics; D005658:Fungi / Q000235:genetics*; D009154:Mutation; D009492:Neurospora crassa / Q000235:genetics; D010407:Penicillium / Q000235:genetics; D010957:Plasmids; D013302:Streptomyces / Q000235:genetics; D047090:beta-Lactams
chemical_list: D000900:Anti-Bacterial Agents; D004271:DNA, Fungal; D047090:beta-Lactams