Abstract
Abstract— Lysogenic induction, Weigle reactivation (WR) and Weigle mutagenesis (WM) induced by UV radiation were studied using the wild type Staphylococcus epidermidis W5 and its u> phage. The difference in UV sensitivity between the lysogenic and non‐lysogenic strains of S. epidermidis is extremely large when compared with wild type non‐lysogenic and lysogenic strains of Escherichia coli. The kinetics of prophage liberation by the lysogenic culture of 5. epidermidis are faster than those described for E. coli. The UV‐fluences which result in the maximum lysogenic induction, WR and WM are much lower than those described for E. coli. The maximum WR and WM are obtained immediately after the irradiation (within the 15 min allowed for phage adsorption). We suggest that in S. epidermidis the basal level of RecA protein can promote the efficient induction of SOS functions.
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