Radioprotective effect of Aspergillus flavus.

A study designed to determine the extent and intensity of radioprotective effects of the mold conidium A. flavus in white mice revealed a higher survival rate with irradiation doses in the range of LD70-LD90; with irradiation with supralethal doses there is no difference in survival by stimulated and control mice. The radioprotective effect is independent of whether the strain A. flavus had been isolated from environment with enhanced radioactivity or not. It depends on a structure of the wall of conidia and not on the toxin produced by mold cells.