الملخص

Abstract Organic Dyes (Gentian Violet or Methylene Blue) had increased the lethal photosensitization of Aspergillus flavus, when were treated with boric acid of different concentrations (1% and 2%) and exposed to He-Ne laser light with absorbed doses of 1.06 and 2.12 joules/cm2 respectively and survivors enumerated. The inhibition of fungus growth was 92.2 and 96.6 % (Percentage differences from control PDC) for the coloring by Gentian Violet and 84.4and 87.7% for Methylene Blue.