Dodecylamine germination of C. perfringens spores. C. perfringens spores of strains SM101 (wild-type) (▪), DPS107 (sleC) (▵), DPS109 (sleM) (○), DPS110 (sleC sleM) (□), and DPS107(pDP138) (sleC strain complemented with wild-type sleC) (▴) were germinated with dodecylamine, and at various times the DPA release was measured as described in Materials and Methods.