Figure 1.

Impacts of ACC and AVG treatments on dynamic elongation process in primary roots of oilseed rape under homogeneous feeding of N (1 mm) on agarose gel. A, The experimental procedure to measure 24-h-old neo-elongated primary root and root hair lengths after treatments. Root tips of seedlings growing in agarose gel for 48 h were marked (white line) to determine the extent of root elongation between 48 and 72 h of treatment. B, Dose-response curves of ACC or AVG treatments on 24-h neo-elongated primary roots. C, Effects of AVG and ACC treatments on the correlation established between primary root length and 24-h neo-elongated primary roots. Each bar represents the average length per treatment ± se for n = 20 seedlings.