The rapid degradation of the pesticides DPA and
OPP by T. versicolor and P. ostreatus coincided, in
most cases, with a significant increase in the activity
of Lac and MnP in both media. This finding strongly
suggests that the LMEs of T. versicolor and P. ostreatus
are involved in the degradation of DPA and OPP
which are characterized by two phenolic rings in their
molecules. This is in line with the substrate affinities
of MnP and Lac which are known to oxidize phenol
rings of lignin (Hatakka 1994). The active involvement
of LMEs in the degradation of different
pesticides has been shown in previous studies. For
example, Pizzul et al. (2009) showed in vitro that
MnP induced the degradation of most of the 22
pesticides tested.