Comparison of metabolites between Arabidopsis and E. salsugineum in vitro- and soil-grown plants under control conditions. Data are representative of similar results from three independent experiments. Asterisks represent significant difference (P ≤ 0.05, Student’s t test) between Arabidopsis and E. salsugineum. Dark gray bars indicate metabolites more abundant in Arabidopsis; light gray bars indicate metabolites more abundant in E. salsugineum.