<p>The JA response of the genes involved in glucosinolate synthesis was weaker in the roots than in the shoots. In the shoots, RJA resulted in a stronger induction of several transcription factors and enzymes involved in the biosynthesis of aliphatic glucosinolates than SJA. In contrast, for the indole glucosinolate pathway, SJA lead to a stronger induction of the involved genes than RJA. Histograms represent the log<sub>2</sub> of the fold changes in expression after RJA or SJA compared CON for all genes that were significantly affected in at least one of the treatment groups (ANOVA, FDR corrected <i>P</i>-value <0.1). Samples showing a significantly different expression compared to CON are marked with an asterisk. RRJA, Root tissue RJA treatment; RSJA Root tissue SJA treatment, SRJA, Shoot tissue RJA treatment, SSJA, Shoot tissue SJA treatment.</p