title: The in vitro detection of defects in temperature sensitive RNA polymerases from mutants of Salmonella typhimurium.
mesh_terms: D001431:Bacteriological Techniques; D012321:DNA-Directed RNA Polymerases / Q000235:genetics*; D005821:Genetic Techniques; D006358:Hot Temperature; D009154:Mutation; D010641:Phenotype; D012313:RNA / Q000096:biosynthesis; D012486:Salmonella typhimurium / Q000235:genetics* / Q000302:isolation & purification
chemical_list: D012313:RNA; D012321:DNA-Directed RNA Polymerases