Fig. 2.

Ratios of aliphatic and indole (A/I ratio) glucosinolates (GS) in (a) shoots and (b) roots of control (C)-, aphid (A)-, nematode (N)- and aphid + nematode (AN)- treated Arabidopsis thaliana plants 3 days after infestation. The horizontal line in the boxes indicates the median, the boxes indicate the 25% and 75% percentiles, the whiskers extend to the lowest and highest value within the 1.5 × interquartile range, respectively, and values outside that range are depicted as dots. Different lower case letters indicate significant differences at P < 0.05 (analysed with GLM, n = 10 per treatment; data are shown from one representative experiment of three independent experiments) (this figure is available in colour at JXB online).