Figure 3.

Contents of (a) Progoitrin, (b) Glucoalyssin, (c) Glucobrassicin, (d) 4-Methoxyglucobrassicin, (e) Gluconasturtiin and (f) Neoglucobrassicin in roots of clubroot-resistant (mean of cultivars Aristoteles, Mendel, Creed) and -susceptible (mean of cultivars Bender, Ladoga, Visby) cultivars of Brassica napus 35 days post inoculation (dpi) after mock inoculation (control) or inoculation with either a less virulent isolate (P1, Hoisdorf) or a more virulent isolate (P1 (+), Grävenwiesbach) of Plasmodiophora brassicae. Contents represent the mean of six biological replicates, consisting of three plants each, from two independent experiments. Error bars represent the standard deviation. An analysis of variance (ANOVA) was performed to test the significance of main effects and interactions, and Tukey’s post hoc tests for the means of the factor variety were performed separately for inoculated and non-inoculated groups (for p-values see Supplementary Table S3). No significant differences were observed. DW, dry weight.