Figure 1

Metabolomic analysis of the components in the root tissues of S. flavescens. (a) PCA score plots of positive ion mode. (b) One-way ANOVA of the positive ion mode. (c) Variable importance in the projection of positive ion mode. (d) PCA score plots of negative ion mode. (e) One-way ANOVA of negative ion mode. (f) Variable importance in the projection of negative ion mode.