Figure 4.

The colony biofilm, colony morphology and motility of P. polymyxa WLY78 (WT), pep-1 and pep-2 gene cluster. (A) Colony biofilm of WT, ∆pep-1 and ∆pep-2 after 120 h of cultivation. (B) Colony morphology of WT, ∆pep-1 and ∆pep-2 after 18 h of cultivation. (C) Twitching motility assays of WT, ∆pep-1 and ∆pep-2 after 24 h of cultivation at 30 °C. Results are representative of at least three independent experiments.