Figure 6.

Analysis of Pchlide levels in a range of photomorphogenic mutants following brief light treatments. A and C, Pchlide was measured in 5-d-old, dark-grown wild-type (WT) and phyA (fri), phyB1 (tri), au, hp-1, and double-mutant seedlings. MM, GT, and AC represent different genetic backgrounds (Table I). B, Pchlide was measure in 5-d-old wild-type (WT) seedlings treated with 5 min of red (R; 17 μmol m⁻² s⁻¹) or 15 min of far red (FR; 12 μmol m⁻² s⁻¹) light 24 h after imbibition. Values are means ± se (n ≥ 3).