Figure 3. Histochemical GUS staining of T1 seedling of tobacco transformed with the full length promoter GbSLSP and its 5′- and 3′-truncated versions.

A, Whole seedlings, scale bars = 0.2 mm. B, Rosette leaf zones, scale bars = 0.1 mm. C, Cotyledon zones, scale bars = 0.1 mm.