FIG. 1.

(A) List of genes that were down-regulated more than twofold in Salmonella serovar Typhimurium SL1344 and Salmonella serovar Enteritidis 76Sa88 bacteria grown in LB medium supplemented with 10 mM butyric acid relative to the control condition. Expression data were normalized to the control condition (LB), and the ratios for butyrate-treated LB to control LB were calculated. (B) Strains were grown overnight at 37°C and diluted 50-fold in LB and LB supplemented with 10 mM butyrate. Light emission was measured every 15 min, and the graph shows the difference observed at the time point when the highest level of expression was normally observed in LB.