Fig. 3.

a Principal component analysis of root exudates of control-treated and Pst-inoculated plants growing on agar-solidified medium. b Heatmap analysis of changes in root exudate content of control-treated and Pst-inoculated plants growing on agar-solidified medium. c Abundance (cumulative peak area) of compound categories. Each bar represents the average of three replicates. The asterisk indicates statistically significant differences (t test, p < 0.05) between each root exudates of control-treated and Pst-inoculated plants. d Heatmap analysis of changes in abundance of representative compounds that were significantly differential in abundance between root exudates of control- and pathogen-treated plants and that selected for subsequent soil conditioning experiment. LCOAs long-chain carbon organic acids, SCOAs short-chain carbon organic acids, AAs amino acids