TABLE 1.

P. aeruginosa genetic mutants used in these studies

PA14 mutantaWT function of gene productMutant phenotype for bacterial motility
pilB mutantATPase for pilus assemblyLacks pili, twitch defective
pilG mutantPilus transcription factorLacks pili, twitch defective
flgK mutantFlagellar hook proteinNo flagellum, swimming defective
fliN mutantFlagellar export/assembly proteinNo flagellum, swimming defective
ΔmotAB ΔmotCD mutantFlagellar stator proteinsFlagellum intact, swimming defective
  • a PA14 is a nonmucoid WT clinical isolate.