Figure 2

Effect of the csrA and csrB mutation on motility of Erwinia amylovora.
(A) motility of wild type, the grrA, flhD, csrA, csrB mutant and complementation strains on soft tryptone agar plates (3%) at 28 °C. Photographs were taken at 48 h; (B) Diameters of the circles were measured 48 h after inoculation.