Figure 1.

Principal Component Analysis bi-plot of scores and loadings, based on chemical profiles of the third youngest leaf of plants at seven days after treatment with 500 µg jasmonic acid to the roots (black squares), to the shoot (open triangles) or with acidic water (control, grey circles). The length of the arrows indicates the magnitude of the loading for the variable. For amino acids (dashed lines) we used the international IUPAC three letter codes starting with a capital letter. Sugars (solid lines): gluc = glucose, fruc = fructose, mani = manitol, mel = melibiose, sucr = sucrose, treh = trehalose. For abbreviations of glucosinolates (dotted lines), see Table 1.