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. 2001 Apr 24;98(10):5850–5855. doi: 10.1073/pnas.091110098

Figure 4.

Figure 4

A phoP∷Tn10 mutant killed fewer U-937 macrophages than wild-type S. typhimurium by 20 or 24 hr after infection. (A) Suspended and adherent cells were harvested and processed for FACS 20 hr after infection. The percentage of TUNEL-positive events is shown. (B) LDH release was measured 24 hr after infection. Results are presented as the percent cell death, where 100% is the amount of LDH in uninfected lysed cells. lysed, uninfected lysed; WT, wild-type; phoP, phoP∷Tn10 mutant; spiA, spiA∷Tn5 mutant.