Fig. 6

Differences in the pattern of induction of SA metabolism genes upon viroidal (CEVd) and bacterial (Pst) inoculation in wild type (WT) and RNAi_SlS5H (lines 14 and 16) transgenic tomato plants by qRT-PCR. ICS (A), PAL (C), EPS1 (E), SAMT (G), GAGT (I) and TWI (K) tomato gene expression levels 3 weeks post-inoculation with CEVd; ICS (B), PAL (D), EPS1 (F), SAMT (H), GAGT (J) and TWI (L) gene expression levels 24 h after inoculation with the bacteria Pseudomonas syringae DC3000; MOCK represents the mock-inoculated plants. The qRT-PCR values were normalized with the level of expression of the actin gene. The expression levels correspond to the mean ± the standard error of a representative experiment (n = 3). Statistically significant differences (p-value < 0.05) between genotypes and infected or mock-inoculated plants are represented by different letters