Figure 7.

Dark-grown ecr1-1 seedling phenotypes. A, Arabidopsis seedlings of the indicated genotypes were grown on unsupplemented medium (top), 100 nm ACC (middle), or 1 μm ACC (bottom). Scale bar = 1 cm. B, Seedlings were grown on unsupplemented medium or medium supplemented with 10 μm AgNO₃. eto1 was included as a control known to overproduce ethylene (Guzman and Ecker, 1990). Seedlings were grown for 1 d in yellow light then covered and grown for four additional days in darkness. Bars represent mean hypocotyl length + se; n ≥ 10.