Cell wall-perturbing agents alter the growth of Δpmt mutants. A 10-fold serial dilution of conidia (106 to 102) was spotted onto CM and CM containing 10 μg/ml Calcoflour, 25 μg/ml Congo red, or 0.6 M KCl as an osmotic stabilizer. The plates were incubated for 3 days at 25°C, 30°C, 37°C, or 42°C. WT, wild type.