FIG. 3.

ArcA does not protect S. enterica serovar Enteritidis from heat, detergent, salt, or low pH. Cultures of SE8743 transformed with vector pRB3-273C or plasmid pRB3arcA were subjected to 52°C (A), 5% SDS (B), 1 M NaCl (C), or pH 4.0 in LB medium (D). Bacterial concentrations were determined by plating. The values are the concentrations of surviving bacteria after exposure to the stress conditions. At least two experiments were performed, and the results of a representative experiment performed in triplicate are shown. The error bars indicate standard deviations.