Fig. 2.

a Playback of caterpillar feeding vibrations increased the induced response of A. thaliana to herbivore damage, compared to no-vibration controls (*p < 0.05, error bars 95 % confidence intervals; there was no difference between the 24 and 48 h samples, so they were pooled here). N = 44 per bar (43 for rosette center). b Grayscale map showing the increase in aliphatic glucosinolates in the playback and same-age systemic leaves, expressed as the percent change from the levels in controls