Figure A1. The total number of up- and down-regulated metabolites in plants grown in microcosms with (a – c) different neighbors (PPI) or (d – f) different soil legacies (PSI). Metabolites uniquely regulated in leaves are depicted in orange. Metabolites uniquely regulated in roots are depicted in violet. Overlapping areas indicate the number of up- and down-regulated metabolites in both tissues. The number depicted is in comparison to the monoculture diversity/soil legacy level. Abbreviations: PPI – plant-plant interaction experiment; PSI – plant-soil interaction experiment.