Figure 3
From: AI-2-dependent gene regulation in Staphylococcus epidermidis
Relative production of major PSMs in wild-type, ΔluxS, and ΔluxS strain with AI-2 addition. **, p < 0.01, ***, p < 0.001. Data are from the integration of extracted ion chromatograms of the two major peptide peaks produced in electrospray mass chromatograms of culture filtrates using HPLC/MS. Comparisons are vs. wild type for ΔluxS and vs. ΔluxS for ΔluxS + AI-2. No statistical analysis could be performed for PSM beta1 as there were no detectable levels of PSM beta1 in the ΔluxS strain.