title: Sensitization of Clostridium perfringens spores to heat by gamma radiation.
abstract: Spores of Clostridium perfringens, type A, were given separate or sequential treatments of gamma radiation (0 to 0.7 Mrad) and/or high temperature (93 to 103 degrees C). Prior heating, sufficient to inactivate 40 to 99% of the viable spores, had no effect on the subsequent radiation inactivation rate. Prior irradiation had a sensitizing effect on subsequently heated spores. The degree of sensitization to heat, as measured by thermal inactivation rate, increased with increased radiation pretreatment dose.
mesh_terms: D003016:Clostridium perfringens / Q000502:physiology / Q000528:radiation effects*; D003037:Cobalt Radioisotopes; D005720:Gamma Rays; D006358:Hot Temperature; D013171:Spores, Bacterial / Q000502:physiology / Q000528:radiation effects
chemical_list: D003037:Cobalt Radioisotopes