Fig. 3: Structural and functional relationship analysis of BITC derivatives.

The dose-dependent inhibition of C. benghalensis stomatal opening was investigated, as shown in Fig. 1b, and the IC50 values of the derivatives were calculated. Green text indicates compounds with comparable activity (15 < IC50 < 100 µM); blue text, compounds with improved activity (IC50 < 15 µM); and red text, inactive compounds (IC50 > 100 µM).