Figure 6. Quantification of biofilm formation by E. amylovora after 48 h of incubation at 28 °C (red), 14 °C (yellow) and 4 °C (blue).

Vertical lines indicate the SD. Asterisks above horizontal lines denote statistically significant differences between the two signaled columns. *, p < 0.05; **, p < 0.01; ***, p < 0.001; ns, non-significant differences. These data are from a representative experiment carried out, at least, with seven replicates per strain and temperature. This experiment was repeated with the same number of replicates, showing similar results.