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. 2012 Nov 20;7(11):e49966. doi: 10.1371/journal.pone.0049966

Figure 4. Biofilm formation and protease activity are co-regulated by AHL and BDSF.

Figure 4

(A) Biofilm formation in ABC minimal. (B) Protease activity in NYG medium. The strains tested are the wild type H111 and the cepI rpfF Bc double mutant. Strains were grown in the presence of absence of signal molecules (200 nM C8-HSL; 10 µM BDSF) as indicated by+and - below each bar. Error bars indicate SEM, n≥3. ** P<0.01, *** P<0.001 (t-test, two-tailed) compared to ΔcepI rpfF Bc without signalling molecule (ns, not significant).