FIG 5.

Chemotaxis responses of S. meliloti wild type (black) and a strain lacking mcpV (gray) in the capillary assay. (A) Chemotaxis responses of the wild type and ΔmcpV to the peak concentration of acetate, propionate, butyrate, formate, pyruvate, glycolate, and acetoacetate. Chemotaxis data of the wild-type response is taken from Fig. 3. (B) Chemotaxis responses of the wild type and ΔmcpV to 10 mM proline. Note the difference in scale between panels A and B. Values are the means and standard deviations from three biological replicates.