Table 2.

Substrate specificity of CFLEa

Substrate Lytic activity (% of control)
Normal B. cereus IFO 13597 spores<1
Isolated B. cereus IFO 13597 spore cortical fragments100
Isolated B. subtilis 168 AJ12866 spore cortical fragments92
Isolated C. perfringens S40 spore cortical fragments85
IsolatedB. subtilis ADD1 spore cortical fragments<5
Decoated B. cereus IFO 13597 spores<3
DecoatedB. subtilis 168 AJ12866 spores<3
Decoated C. perfringens S40 spores<3
Decoated B. subtilisADD1 spores<3
Isolated B. cereus IFO 13597 cell walls<1
Isolated B. subtilis 168 AJ12866 cell walls<1
  • a Lytic activity was measured by the decrease in OD600. The control value (0.05 U for isolatedB. cereus IFO 13597 spore cortical fragment) was taken as 100%. The substrates tested here, except for normal B. cereus IFO 13597 spore, were digested by egg white lysozyme.