title: Mutants of Salmonella typhimurium requiring cytidine for growth.
mesh_terms: D003596:Cytosine / Q000378:metabolism; D009153:Mutagens / Q000494:pharmacology; D009154:Mutation; D009705:Nucleosides / Q000378:metabolism*; D011743:Pyrimidines / Q000378:metabolism; D012486:Salmonella typhimurium / Q000187:drug effects; D012641:Selection, Genetic
chemical_list: D009153:Mutagens; D009705:Nucleosides; D011743:Pyrimidines; D003596:Cytosine