Interaction Between Ultraviolet Light and -Radiation Damage in the Induction of Mutants of Escherichia coli: the Response in Strains with Normal and Reduced Ability to Repair Ultraviolet Damage

SUMMARY The exposure of tryptophan-requiring Escherichia coli b/r wp2 to u.v.- and γ-irradiation (in either order) results in more revertants than would be expected if the two treatments were independent. The excess mutants (‘interaction mutants’) were produced in increasing number by increasing dos... View More