FIG. 2.
The chitinolytic activity of Listeria monocytogenes depends on σB, PrfA, and Lmo0106. Wild-type and prfA, sigB, and lmo0106 mutant strains were spotted on chitin agar plates, and the plates were incubated for 5 days at 30°C. The photograph presented is representative of 3 independent experiments.