No genetic barriers between Salmonella enterica serovar typhimurium and Escherichia coli in SOS-induced mismatch repair-deficient cells.
Conjugational crosses trigger SOS induction in Escherichia coli F(-) cells mated with Salmonella enterica serovar Typhimurium Hfr donors. Using an epigenetic indicator of SOS induction, we showed that a strong SOS response occurring in a subpopulation of mated mismatch repair-deficient cells totally abolishes genetic barriers between these two genera.
Matic
I
I
E9916 INSERM, Faculté de Médecine--Necker--Enfants malades, Université René Descartes, 75015 Paris, France. matic@necker.fr
Taddei
F
F
Radman
M
M
D003227:Conjugation, Genetic; D003433:Crosses, Genetic; D004260:DNA Repair / Q000235:genetics*; D004926:Escherichia coli / Q000235:genetics*; D013014:SOS Response, Genetics / Q000235:genetics*; D019779:Salmonella enterica / Q000235:genetics; D012486:Salmonella typhimurium / Q000235:genetics*