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Fig. 3 | Annals of Microbiology

Fig. 3

From: Salmonella enterica serovar Typhi genomic regions involved in low pH resistance and in invasion and replication in human macrophages

Fig. 3

Kinetics of pH resistance of the S. Typhi wild-type and S. Typhi ∆F44. Growth kinetics of S. Typhi wt and S. Typhi ∆F44 in LB at pH 4.5, 5.5, 6.5, and 7.5. The right columns indicate the OD595 obtained after 12 h of incubation, as well as the growth percentage measured by OD595 of the mutant versus wild-type strain (100%) at different pH values. The number of viable cells at 12 h (CFU ml−1) and the growth percentage measured by CFU ml−1 of the deleted strain versus S. Typhi IMSS-1 (100%) at the pH values evaluated are also shown. Mean±standard deviation is presented. Statistical significance was determined using Student’s t-test (*P < 0.05)

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