Figure 1. Surface permeability of MYB16 and MYB106 silenced plants. (A) Quantitative RT-PCR analysis of 5′ or 3′ untranslated region of MYB16 and MYB106, respectively, and the coding region of MYB17 in 2-week-old plants (n = 5). Error bars represent standard error. Single and double asterisks indicate P < 0.05 and P < 0.01 in the Welch t-test, respectively. (B) TB uptake per gram protein (n = 8) after staining by 0.05% TB for 2 min. (C) Seedling stained with TB. Bars = 1 mm. The inset panel shows a stained trichome of myb106–2. Bar = 100 μm.