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Fig. 2 | BMC Plant Biology

Fig. 2

From: Plant volatile emission depends on the species composition of the neighboring plant community

Fig. 2

Constitutive and herbivore-induced emission of major groups of volatile organic compounds (VOCs) from experimental plant communities grown in pots in the greenhouse. T. pratense plants were either grown in monoculture (1 sp), in two species mixtures with Geranium pratense (TG) or Dactylis glomerata (TD), or in three species mixtures with D. glomerata and G. pratense (3 spp). Single individuals of the focal plant species T. pratense in the communities were either exposed to feeding by three S. littoralis caterpillars (Herbivory, grey bars) or had no caterpillars feeding on them (Control, white bars). Values in panels (a, b, c, d and e) represent absolute amounts of VOC emission from experimental plant communities in ng g− 1 h− 1 and values in the pie charts in panels (f, g and h) represent relative amounts of the major groups of VOCs with respect to the full T. pratense odour blend. Bars represent means ± SEM n = 6. The results of the statistical analyses are depicted in Table 4

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