Fig. 6From: Biofilm as a production platform for heterologous production of rhamnolipids by the non-pathogenic strain Pseudomonas putida KT2440Effect of rhamnolipid and the surfactant Tween 20 on swarming motility. The top row is the reference strain (KT2440/pVW10) and the bottom row is a rhamnolipid producer (KT2440/pVW12-SPL4). The right column has been added 0.0005% Tween 20 and the left column have not. The scale bars indicate the size of 1 cm on the pictured strain. The presence of Tween 20 increased the swarming motility of both strains but in particular for the reference strainBack to article page