Figure 2.

Expression of ERECTA in the central zone (pCLV3:ER) or broadly in the meristem (pSTM:ER) rescues SAM size defects the most effectively. SAM width measurements were performed by DIC microscopy using 3-DPG (A) and 5-DPG (B) seedlings. The width of SAM was measured as indicated by an arrow in Figure 8C. Three genetically independent transgenic lines were analyzed (line #1 is blue; line #2 is red; line #3 is yellow; n for each transgenic line = 7 to 11). The mean is indicated as a thick horizontal line. In all cases presented, the sd of the mean was less than 1.5 mm and can be considered insignificant. Different letters indicate significant difference at P < 0.05, as determined by one-way ANOVA with Tukey’s post test.