Feeding behavior during inoculation access period (IAP) of <i>Myzus persicae</i> on healthy plants after 1 h acquisition feeding on mock-inoculated, JI-infected or JIΔP2-infected plants (N = 22–26).

(a) presents the duration and (b) the occurrence of behavior phases. The histogram bars show means and standard errors. Differing letters indicate significant differences between plant infection status as tested by GLM (generalized linear model) followed by pairwise comparisons using “emmeans” (p 0.05). For the occurrence of events, significant differences were detected for the number of intracellular test punctures of aphids originating from infected (JI and JIΔP2) vs mock-inoculated plants (GLM, Df = 2, χ2 = 12.629, p 2 = 39.740, p 2 = 11.353, p < 0.001). (c) Correlation between the number of intracellular test punctures during IAP on healthy plants and the total duration of pathway phase during acquisition access period (AAP) on mock-inoculated (green), JI-infected (dark blue) or JIΔP2-infected (light blue) plants. The coefficients of correlation are r = 0.62, r = 0.61 and r = 0.69 for mock-inoculated, JI-infected and JIΔP2-infected plants, respectively.