Figure 3.

Developmental alterations in shoot and root growth upon DHS silencing. (A) Representative images of 25-day-old wild type and siDHS transgenic plants grown in vitro under long-day conditions with (dexa) or without (mock) dexamethasone showing a bushy phenotype when DHS is silenced. (B) Root growth was analyzed on 14-day-old wild type and siDHS plants treated or not with dexamethasone. A representative image shows root growth defects upon dexamethasone treatment for siDHS plants. The length of the main root of at least 5 individual plants of each transgenic line and treatment was quantified with ImageJ and the results are shown below. Asterisks indicate significant differences (p < 0.05) with respect to wild type plants and with respect to the same mock-treated genotype. Scale bars represent 0.5 cm.