Figure 7.

The effect of the ethylene biosynthesis stimulator (MGBG) and inhibitor of perception (Ag⁺) on the development of embryogenic callus from 2HA leaf explants. Embryos have developed in the dark for 11 weeks. Note large numbers of embryos at 100 μm MGBG and callus development without embryos in the case of 100 μm Ag⁺. Arrows point to embryos. Bars = 8 mm. In parallel experiments with Jemalong, only two embryos were produced across all treatments. This confirms that wild-type Jemalong rarely produces embryos.