title: Transduction of nitrate reductase loci of Escherichia coli by phages P-1 and lambda.
mesh_terms: D002499:Centrifugation, Density Gradient; D002874:Chromosome Mapping; D003090:Coliphages; D003227:Conjugation, Genetic; D003470:Culture Media; D004926:Escherichia coli; D009566:Nitrates; D010088:Oxidoreductases; D014161:Transduction, Genetic
chemical_list: D003470:Culture Media; D009566:Nitrates; D010088:Oxidoreductases