Figure 6. Overexpression of FHL, but not FHY1, in an fhy1-3 background confers phyA-dependent hypersensitivity to blue light.

(a) Hypocotyl lengths were measured after germination and 4 day growth under continuous B (12 μmol m⁻² sec⁻¹). Error bars indicate SD (n = 20). Cotyledon opening and expansion of representative seedlings of each genotype are shown.

(b) Hypocotyl lengths were measured after germination and 4-day growth under continuous B (1.2 μmol m⁻² sec⁻¹). Error bars indicate SD (n = 20). Cotyledon opening and expansion of representative seedlings of each genotype are shown. The same lines were used to assess sensitivity to assess sensitivity to FR (Figure 3).