Sensitivity of Intracellular Bacteriophage λ to Colicin CA42-E2

Abstract

Treatment of Escherichia coli K-12 infected by X C1ts857 with colicin CA42-E2 resulted in partial inhibition of the infectious process. Uninfected bacteria were killed by colicin with a probability of about five times that with which similarly treated X-infected bacteria lose plaque-forming ability. The X deoxyribonucleic acid (DNA), when present in a bacterial cell either as the replicating DNA of infec