Figure A2. The total number of up- and down-regulated metabolites in leaves of herbivore-induced plants. The plants were subjected to 7 days of frass by three 2nd instarSpodoptera exigua larvae each. The number depicted is in comparison to control plants grown in similar soil or plant diversity levels, but without herbivore damage. 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). Abbreviations: Geranium = Geranium pratense ;Leucanthemum = Leucanthemum vulgare ; Ranunculus =Ranunculus acris .
Figure A3. The total number of up- and down-regulated metabolites in leaves of control and herbivore-induced plants grown in microcosms with (a – c) different neighbors (PPI) or (d – f) different soil legacies (PSI). Metabolites uniquely regulated in control plants are depicted in orange. Metabolites uniquely regulated in herbivore-induced plants are depicted in violet. Overlapping areas indicate the number of up- and down-regulated metabolites in both control and herbivore-induced plants. The number depicted is in comparison to the monoculture diversity/soil legacy level. Abbreviations: PPI – plant-plant interaction experiment; PSI – plant-soil interaction experiment.