%0 Journal Article %A Guillén, Nancy %A Zahraoui, Ahmed %A D’Ari, Richard %A Hirschbein, Luisa %T RecE-dependent Lysogenic Induction in the Absence of Repressor in Bacillus subtilis Non-complementing Diploids %D 1986 %J Microbiology, %V 132 %N 6 %P 1703-1707 %@ 1465-2080 %R https://doi.org/10.1099/00221287-132-6-1703 %I Microbiology Society, %X The RecE protein of Bacillus subtilis, known to be required for induction of the SOS response and of ϕ105 prophage, was shown to be involved in mitomycin C induction of B. subtilis diploid lysogens carrying a silent ϕ105 prophage in their unexpressed chromosome. These stable non-complementing diploid lysogens, formed by protoplast fusion and regeneration, did not synthesize repressor, so that the induction observed must have resulted from RecE-dependent activation of the prophage rather than from RecE-dependent inactivation of repressor. Mitomycin C treatment does not induce permanent expression of the silent chromosome, so the activation seems to be temporary, perhaps reflecting the action of an SOS function under RecE control. %U https://www.microbiologyresearch.org/content/journal/micro/10.1099/00221287-132-6-1703