Fig. 6From: Autoinducer-2 regulates Pseudomonas aeruginosa PAO1 biofilm formation and virulence production in a dose-dependent mannerEffects of AI-2 on the production of virulence factors of Pnn aeruginosa PAO1. a Relative productions of virulence factors of pyocyanin. b Elastase activity. Triangles denote a statistically significant difference from the control (P < 0.05). Squares denote a statistically significant difference from the 10nM AI-2 group (P < 0.05)Back to article page