Table 1.

Bacterial strains used in this study

StrainGenotype or phenotypeSource or reference
E. coli
 JM107endA1 gyrA96 thi hsdR17 supE44 relA1 λ Δ(lac-proAB) (F′ traD36 proAB lacIqlacZΔM15)29
 INVαF′F′endA recA1 hsdR17 (rK− mK+)supE44 thi-1 gyrA96 relA1 φ80lacZΔM15 Δ(lacZYA-argF)U169 λInvitrogen
C. perfringens
 NCTC 10240CPE+C. Duncan
 NCTC 8798CPE+C. Duncan
 SM101Derivative of NCTC 8798; high efficiency of electroporationThis study