Fig. 3.

a Phenotypes of adult WT and wrky6 plants grown in the absence or presence of P. indica on LP or NP. For growth conditions, cf. Methods and Results. b Typical view of Arabidopsis plants grown in expanded clay for 2 months. c Quantification of fresh weight in grams. d Quantification of shoot length in cm after long term interaction in expanded clay for 2 months. Data are based on 3 independent experiments with 5 plants each. Bars represent SEs. Asterisks indicate significant differences, as determined by Student’s paired t-test for two tailed distribution (** P ≤ 0.01; * P ≤ 0.05)