Figure 1.

Phytotoxic response of catechin isomers on A. thaliana seedlings. (A) A. thaliana plants growing in liquid MS full strength media were supplemented with different concentrations of racemic catechin, (−)-catechin and (−)-catechin gallate. Post seven days of treatment plants were evaluated for catechin phytotoxicity by representation of total biomass (Fresh weight basis). All data presented are the mean values of five replicates, and the data have been presented as means with standard errors of the means. Means with different letters are significantly different at p ≤ 0.05, according to Duncan's multiple-range test. (B) Pictorial evidence to show the catechin's phytotoxicity on A. thaliana plants. The numbers in the (B) refers to racemic catechin [100 µg ml⁻¹] (1), (−)-catechin [20 µg ml⁻¹] (2) and (−)-catechin gallate [20 µg ml⁻¹] (3) and untreated control (Control).