Figure 6

Total abietane diterpene content (mg g−1 dry weight), measured by HPLC-DAD analysis, in AtWRKY18, AtWRKY40 and AtMYC2 overexpressing S. sclarea HR lines. Values are means ± SD from three biological replicates and three technical repeats. Asterisks denote significant differences between the overexpressing HR lines and control HR lines (*P ≤ 0.05, **P ≤ 0.01, respectively).