Hydroethanolic Extracts of Haplopappus baylahuen Remy and Aloysia citriodora Palau Have Bactericide Activity and Inhibit the Ability of Salmonella Enteritidis to Form Biofilm and Adhere to Human Intestinal Cells

Figure 4

Quantification of the relative expression the adrA and bapA genes. Salmonella Enteritidis were incubated with vehicle (control) or 1 or 2 mg/ml of bailahuen or cedron extract for 24 hours; subsequently, RNA was extracted, and cDNA was formatted to determine gene expression levels using qPCR. The data are shown as percentage of control (; ). The expression of adrA decreased by more than 50% in the presence of bailahuen extract. Extracts did not affect the expression of the bapA gene. The values indicate significant difference, .