Mutants of Escherichia coli with altered surface properties which are refractory to colicin E2, sensitive to ultraviolet light and which can also show recombination deficiency, abortive growth of bacteriophage lambda and filament formation.

Cell Division Cell Wall/drug effects Colicins/pharmacology Coliphages/growth & development DNA, Bacterial/metabolism Detergents/pharmacology Drug Resistance, Microbial Escherichia coli/drug effects,radiation effects Mutation Phenotype Recombination, Genetic Surface Properties Temperature Thymine/metabolism Tritium Ultraviolet Rays

Colicins DNA, Bacterial Detergents Tritium Thymine