Fig. 2.

Phytochemical profiling of ∆c2bgc and ∆c4bgc rice plants. (a–d) Effect of deleting the biosynthetic gene cluster from chromosome 2 (c2BGC) or the BGC from chromosome 4 (c4BGC) on labdane‐related diterpenoid metabolism in rice relative to wild‐type (WT) plants (average from three plants with error bars indicating standard deviation), specifically from analysis of leaves from 3‐wk‐old seedlings that were induced with CuCl₂. **, P < 0.01; ***, P < 0.001; ns, no significant difference; calculated using post‐ANOVA pairwise analysis of significance with the Dunnett's significant difference test for ∆c2bgc, ∆c4bgc and ∆c2/c4bgc plants relative to the relevant WT line. Error bars represent ± SD.