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. 2014 Sep;144(3):257–261. doi: 10.1085/jgp.201411243

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© 2014 Ji et al.

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Figure 6. — Bacterial survival after F⁻ exposure. Wild-type or ΔFluc E. coli culture was incubated with 0.5 mM NaF at the indicated pH for the indicated time. Afterward, cells were plated on neutral-pH LB plates, and colonies were counted after 16 h. The number of colonies was normalized against a wild-type culture that was not treated with F⁻ (dashed line indicates 1.4 × 10⁹ CFU/ml). Points represent means ± SEM of three independent measurements.