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. 2013 Nov 13;8(11):e79770. doi: 10.1371/journal.pone.0079770

Figure 5. BtaF is involved in resistance to porcine serum.

Figure 5

Early logarithmic phase cultures were used to evaluate resistance to porcine serum of B. suis (A) and E. coli (B) strains. Survival after one hour of incubation in serum with complement activity was evaluated and then expressed as survival percentage (%) relative to wild type B. suis 1330 or E. coli pBBR1MCS-1, defined as 100%. Total CFU/ml are also indicated in the right Y-axis for Brucella survival (A). E. coli survival was also assessed in buffer and heated serum (B). Values represent the means ±SD of the results of an experiment representative of three independent assays done in triplicate. Data were analyzed by Student's t test and one-way ANOVA followed by a Tukey a posteriori test. *, significantly different from control (P<0.05).