Laccase and MnP activities by 9-day-old cultures in low-N Kirk’s liquid medium. B. adusta (♦), P. radiata (□), T. cotonea (▲), T. meyenii (○), T. pubescens (●), T. multicolor (■), T. versicolor (Δ). S.D. always less than 5% (n = 5). B. adusta, P. radiata and T. cotonea all displayed negligible enzyme activities.