Fig. 3.

Mean log₁₀-transformed peak intensities relative to the maximum observed intensity of selected compounds of interest in leaves of six Solanum dulcamara accessions that were either left undamaged (C, n = 4 clones / accession) or induced by feeding damage of Deroceras reticulatum slugs (I; 72 hr of feeding followed by 24 hr relaxation, n = 4 clones/accession). The peak intensities of four steroidal glycoalkaloids, five uronic acid conjugated compounds and three selected regulated compounds are shown. Asterisks indicate significant treatment effects according to FDR-adjusted P-values of independent t-tests for each accession (***P < 0.001, ** P < 0.01, * P < 0.05)