Expression of SCR and WOX5 in CLE17-treated roots. Eight-day-old roots treated (CLE17) or untreated (control) imaged 5 days after transfer to treatment plates. SCRp::GFP (top panel, n = 12), SCRp::GFP-NLS (middle panel, n = 20 for each condition), and WOX5p::YFP-NLS (bottom panel, n = 18 treated and n = 12 untreated) expression (green) in roots counterstained with propidium iodide. Arrows indicate the position of the quiescent center. Bar, 20 µm.