Fig. 1

Mycelial material generation. Mycelial discs were grown from the (A) control (A1405) and (B) ΔmpkA (A1404) fungal strains. (C) Average dry material biomass (g) from two disks for the control (●) and ΔmpkA (○) increased exponentially, with average specific growth rates (straight lines) of 0.041 h− 1 and 0.043 h− 1 and final biomass values of 0.20 g and 0.30 g respectively. No significant difference in growth rates (P = 0.84); significant difference in final weights (P = 0.001)