A Xoo recA insertion inactivation mutant was constructed. The mutant, lacki
ng RecA, showed increased sensitivity towards mutagen killing. This phenoty
pe could be complemented by a cloned, functional recA. Unlike other bacteri
a, both the recA mutant and the parental strain had similar level of resist
ance to H2O2 killing and peroxide-induced mutagenesis. (C) 1998 Federation
of European Microbiological Societies. Published by Elsevier Science B.V. A
ll rights reserved.