Abstract
Bacteriophage c6A is a lytic phage that infects strains of Lactococcus lactis. Infection of L. lactis strain C6 resulted in inhibition of culture growth within 10 min, mature intracellular phage particles appeared after 17.5 min, and cell lysis occurred after 25 min. A culture of strain C6 carrying 3H-labelled DNA was infected with c6A, and the fate of the radiolabel was monitored. The results showed that degradation of host cell DNA began within 6 min of infection and that the breakdown products were incorporated into progeny c6A DNA. Quantitative DNA hybridizations indicated that synthesis of phage DNA began within 6 min of infection and continued at an approximately constant rate throughout the latent period.
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