Figure 4. Effect of the ΔacyA mutation on growth or viability under heat or oxidative stress.

A: Serial conidia-dilution tests of the effect of heat stress (60°C/1 h) and oxidative stress (1 mM H₂O₂) on DGasn agar plates. Each spot was inoculated with the conidia amounts indicated on the left. B: Effect of H₂O₂ concentration (50–100 mM) on radial growth of the acyA ⁺ and ΔacyA strains on DGasn agar plates. Overlapping symbols were separated for better visualization. C: Survival of conidia following 2 h incubation in liquid DGasn medium supplemented with 5 mM H₂O₂.