title: A mutant of Escherichia coli that prevents growth of phage lambda and is bypassed by lambda mutants in a nonessential region of the genome.
mesh_terms: D000327:Adsorption; D002874:Chromosome Mapping; D003090:Coliphages / Q000254:growth & development*; D004926:Escherichia coli; D005796:Genes; D008769:Methylnitronitrosoguanidine; D009153:Mutagens; D009154:Mutation; D014779:Virus Replication
chemical_list: D009153:Mutagens; D008769:Methylnitronitrosoguanidine