Fig. 1

Time course of adventitious root development in mung bean hypocotyls after the primary root excision. Adventitious root primordia are visible at 48 h after primary root excision, and adventitious roots grow through the epidermis of the hypocotyls within 96 h. The basal 0.5 cm of the hypocotyls at 0 h, 6 h (stage 1), and 24 h (stage 2) after primary root excision and treatment with water or 10 μM IBA were harvested and used as study samples