title: Replication of extrachromosomal elements in a DNA synthesis initiation mutant of Salmonella typhimurium.
mesh_terms: D002499:Centrifugation, Density Gradient; D004269:DNA, Bacterial / Q000096:biosynthesis*; D005111:Extrachromosomal Inheritance; D005827:Genetics, Microbial; D009154:Mutation; D012486:Salmonella typhimurium / Q000378:metabolism*; D013696:Temperature; D013941:Thymine / Q000378:metabolism; D014316:Tritium
chemical_list: D004269:DNA, Bacterial; D014316:Tritium; D013941:Thymine