Fig. 8.

Effect of treatment with 2 % PEG₆₀₀₀ on the transcript level of (A) AAO3, (B) ABI, (C) COR15A, (D) KIN, (E) MYB, (F) MYC2 and (G) RD22 in WT and transgenic poplar. Relative expression was calculated using Actin as an internal reference. WT leaves untreated with PEG₆₀₀₀ served as controls. Vertical bars are mean ± s.d. (n = 3). Black columns, WT; Trans1 and Trans2 represent two relatively independent transgenic lines, respectively, dark grey columns, Trans1; light grey columns, Trans2. Three independent experiments were performed. *P < 0.05, **P < 0.01, ***P < 0.001.