Fig. 7. Pentachlorophenol (PCP) removal after 7 wk by the white-rot fungi Trametes versicolor HR131 and Trametes sp. HR577 after bioaugmentation into 697 and 1043 mg kg^–1 (dry wt.) PCP-contaminated field soils. The latter soil (1043 mg kg^–1) was supplemented with two Tween 80 conc. to enhance PCP removal. The error bar represents the 5% Fishers LSD. The 95% confidence intervals were 162 to 397 mg kg^–1 PCP (pooled) at a PCP starting concentration of 697 mg kg^–1, ANOVA: P = 0.015; 536 to 773 and 530 to 718 mg kg^–1 PCP (pooled) for isolates HR131 and HR577, respectively, at a PCP starting conc. of 1043 mg kg^–1, ANOVA: P < 0.001 for both isolates.