Fig. 3.

Embryos injected with the EPRE–luciferase–GFP reporter plasmid expressed GFP after 24 h exposure to HgCl₂. Control embryos that were uninjected or injected but untreated did not express GFP (a). HgCl₂-induced GFP expression was most commonly observed in skin cells (b, e), although at treatment, ≥0.3 μM expression was also observed in other cell types including neurons (c, f), muscle cells (c, g), and notochord cells (d, h). Scale bar applies to a–d=200 μm