Figure 1. A fleQ mutant has a wrinkly colony morphology.
P. aeruginosa wild type (strain PAO1), fleQ mutant, wspF mutant, fleQ mutant containing fleQ on a plasmid (pJNFleQ) or control vector (pJN105), and a fleQ pel psl mutant were streaked on tryptone agar containing congo red and colonies were imaged after 5 days at 25°C.