Sporulation is decreased in a Δ<i>mas</i> mutant.

<p>Spores were harvested from a TPM plate after 5 days of growth at 32°C and resuspended in 100 µl of TPM buffer. After 2 h incubation at 50°C, spore aliquots were diluted and plated on CTPM agar. After 3 days incubation at 32°C, CFU's from heat resistant spores were counted. All values are given as a percentage of the WT level, normalized to 100%.