Figure 1. The total number of up- and down-regulated metabolites in leaves and roots of (a) Geranium pratense, (b)Leucanthemum vulgare, and (c) Ranunculus acris plants grown in microcosms with different neighbors (PPI) or different soil legacies (PSI). The number depicted is in comparison to the monoculture diversity/soil legacy level. Data collected as part of the plant-plant interaction (PPI) experiment are displayed in light red (up) and dark red (down). Data collected as part of the plant-soil interaction (PSI) experiment are displayed in grey (up) and black (down).