Figure 3. Content of soluble sugars in susceptible pepper leaves after infection with Xcv wild type or with the TTSS-deficient Xcv ΔhrpB1 strain.

Contents of glucose, fructose and sucrose were determined following inoculation of pepper leaves with Xcv wild type (wt) or the Xcv ΔhrpB1 using a concentration of 5×10⁸ cfu ml⁻¹ and compared to 10 mM MgCl₂ infiltrated control leaves. Samples were taken before (0 h), 24 and 48 hours post infection (hpi). Each value represents the mean ± SE of four different experiments each with four to six individual samples. Statistically significant differences to Mock-inoculated control plants were determined using two-tailed t-test assuming normal distribution and are indicated by asterisks (*p<0.05).