FIG 4.

Quantitative assays of capillary chemotaxis of P. syringae pv. tomato (WT) and the PsPto-pscA mutant toward l-Asp (A), d-Asp (B), and l-Glu (C). The data have been corrected with the number of cells that swam into buffer-containing capillaries. Shown are means and standard errors from three independent experiments conducted in triplicate. Generalized linear models (GzLMs) were performed, followed by Fisher’s least significant difference (LSD) test (*, P < 0.05; **, P < 0.01; ***, P < 0.005; ****, P < 0.001), with the exception of l-Asp at 0.5 mM and l-Asp at 5 mM, where ANOVA was performed, followed by Fisher’s LSD test (*, P < 0.05).