Fig. 1

a The production of melanin by the isolated fungi. F10 was found to have the superior melanin yield than the other strains. Data are analyzed using one-way analysis of variance (ANOVA) followed by Duncan’s multiple range test that represented by the letters (a,b, c, d). The same letters in represented not significantly different in results at p < 0.05 (b) Effect of gamma irradiation doses, 0.25, 0.5, 1.0 and 2.0 kGy on the production of melanin by the isolated fungi. At 1.0 kGy, melanin was produced sufficiently for all isolates except F2 that represents the maximum melanin production at 0.5 kGy. The results were plotted as mean values. Error bars represent the SD. According to Duncan’s multiple range test, the same letters represented not significant difference at p < 0.05