Figure 3. Histochemical assay of uidA gene. (a) Transient uidA expression on Catuaí suspension cultures bombarded with pCAMBIA 1301. (b) Stable uidA expression on Catuaí suspension cultures bombarded with pCAMBIA 2301 after 4 weeks of culture on Sli medium (Quiroz-Figueroa et al. 2002) supplemented with 100 mg l^-1 kanamycin. (c) Catuaí suspension cultures on selection with 100 mg l^-1 kanamycin after 4 weeks of bombardment with pCAMBIA 2301. (d) Complete growth inhibition of Catuaí suspension cultures in selection medium containing 100 mg l^-1 hygromycin or 3 mg l^-1 ammonium glufosinate.