Fig. 6

Growth phenotypes of P. deltoides PtGAUT12.1-OE lines. A Phenotypes of 3-month-old P. deltoides WT (left two plants of shown controls), vector control (right two plants of shown controls), and PtGAUT12.1-OE plants. B Height, C radial growth, and D dry aerial biomass weight of 3-month-old PtGAUT12-OE lines compared to WT and vector control. For height and diameter, n = 25 for WT, n = 120 for vector control lines (n = 10–15 for each of 8 control lines), and n = 10–15 for PtGAUT12-OE lines (complete dataset is provided in Additional file 3). For biomass weight, n = 6. E Height and F radial growth of greenhouse-grown PtGAUT12-OE and control plants measured over a 9-month growth period (n = 10). Error bars represent SE, *P < 0.05, **P < 0.001