Abstract Thirty strains of fungi collected from nature were investigated for their ability to grow on agar medium contaminated with Remazol Brilliant Blue R (RBBR) and 1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane (DDT). The results showed that strain U97, later identified as Trametes versicolor, was the most active decomposer. This fungus decolorized 85 % of RBBR in 6 h and degraded 71 % of…