Table 1.

P. aeruginosa virulence factors.

Categories	Virulence Factors
Cell surface structures	Outer membrane (lipopolysaccharide) Appendages (type IV pili, flagella) Secretion systems (T1SS, T2SS, T3SS, T4SS, T5SS, T6SS)
Secreted factors	Exopolysaccharide (alginate, Pel, PsL) Siderophores (pyoverdine, pyochelin) Proteases (alkaline protease: AprA; elastases: Las A, LasB; protease IV) Toxins (T3SS effectors: ExoS, ExoU, ExoT, ExoY; exolysin A; exotoxin A; lipase A; phospholipase C; lipoxygenase; leukocidin; pyocyanin)
Bacterial cell-to-cell interaction	Quorum sensing Biofilm