Fig. 5From: An antimicrobial peptide specifically active against Listeria monocytogenes is secreted by Bacillus pumilus SF214SDS-PAGE analysis of the >10 kDa fraction of the cell-free supernatant of SF214. (a) Coomassie-Blue stained 18% polyacrylamide gel. (b) 18% polyacrylamide gel not stained but fixed and overlaid with L. monocytogenes cells. The red arrow points to the inhibition halo observed after 18 h of incubation at 37 °C. M: molecular markerBack to article page