Figure 5

AtWOX14 gene expression during plant development. (A to C) Expression profile during the initiation and development of lateral roots obtained with 14-day-old AtWOX14::GUS seedlings. Independent lines were tested. (D) 5-day-old seedling showing staining in the lower part of the hypocotyl and the upper part of the primary root vasculature. (E) Staining profile in primary and lateral roots of 14-day-old seedlings with expression in the upper root vasculature and pericycle. (F) Magnification at the edge of the GUS coloration showing the presence of the youngest LR initial (black arrowhead). (G to I) Expression within the flower showing strong staining in the anther only at floral stage 11–12 (G and H) before opening. Note the absence of staining in the mature anther (I). Scale bars = 100 μm except for C (= 200 μm) and D, E (= 500 μm).