Effects of chloroperoxidase and hydrogen peroxide on the viabilities of Aspergillus flavus conidiospores.
The effects of chloroperoxidase [EC 1.1.1.10] and hydrogen peroxide on the viabilities of quiescent and germinating conidiospores of an aflatoxigenic fungus, Aspergillus flavus, were determined. Hydrogen peroxide was found moderately lethal and chloroperoxidase produced a 30-fold increase in the lethality of hydrogen peroxide to germinating conidia, which were 75-fold more susceptible to chloroperoxidase than were quiescent conidia. According to infrared examinations of fungal corpses, mortality occurred by oxidation rather than peroxidative chlorination.
Jacks
T J
TJ
Southern Regional Research Center, USDA, New Orleans, LA 70179, USA.
De Lucca
A J
AJ
Morris
N M
NM
D001231:Aspergillus flavus / Q000187:drug effects* / Q000472:pathogenicity / Q000502:physiology*; D002711:Chloride Peroxidase / Q000494:pharmacology*; D004357:Drug Synergism; D006861:Hydrogen Peroxide / Q000494:pharmacology*; D013172:Spores, Fungal / Q000187:drug effects / Q000502:physiology
D006861:Hydrogen Peroxide; D002711:Chloride Peroxidase