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. 2014 Jul 21;4:94. doi: 10.3389/fcimb.2014.00094

Figure 2.

Figure 2

AI-2 plays a role in biofilm formation of A. actinomyc-etemcomitans. Biofilm formation of A. actinomycetemcomitans luxS is restored to near wild-type levels by the addition of sterile spent medium (left panel) as well as by the addition of 100 nM synthetic DPD (right panel). *Indicates significantly different from control.