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. 2019 Nov 7;10:2495. doi: 10.3389/fmicb.2019.02495

Figure 3.

Figure 3

Morphological observation shows that the ClpP-dependent level of CsrA affects entry into the RP. (A) Bacterial morphology of L. pneumophila observed with 100× magnification under oil at the indicated time points. The indicated strains in the TP were inoculated into AYE media to the same initial OD600 of 0.2 with shaking at 37°C. (B–E) Cell length of WT/pJB908 (B), WT/pcsrA (C), ΔclpP/pJB908 (D), and ΔclpP/pcsrA (E) was calculated with ImageJ at the indicated time points. Data represent mean ± SEM derived from three independent experiments. **p < 0.01 were identified by GraphPad Prism. ns means no difference from the wild type.