Figure 2

Expression levels of CaPAL1 in C. annuum in uninfested, aphid-infested, or parasitised aphids- infested plants, each grown in sterile soil, or inoculated with living soil conditioned by the plants A. millefolium or L. perenne. Bars represent mean CaPAL1 expression levels normalised as 2−∆∆Ct with standard error bars (n = 4). Bars marked with different letters are significantly different (LSD, P < 0.05), with separate analysis for the two time points (24 and 48 h after aphid infestation).