Figure 2: The relative abundance of pyrrolizidine alkaloids and their N-oxides extracted from E. plantagineum (Ep) and E. vulgare (Ev) foliar tissue, averaged over three biological replications for each treatment.
From: Ecology and genetics affect relative invasion success of two Echium species in southern Australia
Data was normalized by log2 transformation. Both species were grown (a) under uniform glasshouse condition or (b) at the same field sites near Bathurst. Pyrrolizidine alkaloids were significantly more abundant in Ep as tested by one-way ANOVA (P < 0.05). Ep: Echium plantagineum, Ev: E. vulgare; Ep-A: E. plantagineum collected from Adelong; Ep-S: E. plantagineum collected from Silverton; Ev-A: E. vulgare collected from Adaminaby; Ev-C: E. vulgare collected from Cooma. Please refer to Table S1 for the name of the compounds.
