Figure 4
From: Compensatory phenolic induction dynamics in aspen after aphid infestation

PCA ordination of foliar phenolic compounds (detected with LC/MS in peak area) and phenolic compound classes (total phenolics and condensed tannins in mg/g FW) in aspen plants shows that the association with (A) treatment, is less distinct that the association with (B) genotype. (C) PCA loadings highlight specific impact of the included phenolics, and suggest that Tremuloidin, Tremulacin, a Flavonoid (Flav3), and a Chlorogenic acid (Chloac1) belong to the stronger contributors to phenolic phenotypes. Additional compound abbreviations: Sal (Salicortin), Cinsal (Cinnamoyl Salicortin, Ac-sal (acetylsalicortin), Di-glu (diglucoside), Sa-co (salicoylsalicin), CTs (Condensed tannins), TPs (Total phenolics).