Fig. 5.

Effect of reactive species on the secretion of α‐amylase.

A. The specific α‐amylase activity (units) measured in PDB media 24, 48 and 72 h after spores were exposed to individual species.

B. The relative specific α‐amylase activity (units) of treated samples compared to that of untreated samples. The ratio that was calculated represented specific α‐amylase activity (units) detected in PDB treated with individual reactive species/ specific α‐amylase activity (units) detected in untreated PDB. Each value is the mean of three to nine replicate measurements; *P < 0.05, **P < 0.01.