Figure 5.
Anti-virulence activities of the active synthesized compounds. Selected compounds 9a, 9b and 9f at sub-MIC were tested for their ability to decrease the production of QS-controlled bacterial virulence factors. The tested compounds significantly decreased the production of (A) S. aureus pigment staphyloxanthin and (B) P. aeruginosa pigment pyocyanin. (*** = p < 0.001).