Fig. 6: Cryptic atiserenoids and tripterifordin exhibit allelopathic activity.

a Schematic diagram depicting the root inhibition assay. Plants grown on each plate were subjected to only one compound treatment. b Compounds used for the assay. c Phenotypes of representative 10-day-old A. thaliana seedlings grown on MS plates treated with the designated compounds at the indicated concentrations. Note that the representative seedlings were taken from the plates of different treatments in Supplementary Fig. 32 and placed in one plate for photographing and visualization. d Violin plots showing the overall root lengths of A. thaliana seedlings treated with different compounds. Each violin plot contains at least 63 points corresponding to the root length of individual seedlings. Statistics were performed using one-way ANOVA analysis to compare significant differences between control (DMSO) and the different treatments. PAC paclobutrazol. GA3 gibberellic acid 3.