Light microscopy of leaf sections of the different
cue mutants. A, Wild type; B, hy1-6.2; C,
phyB-17.6; D, cue3; E,
cue4; F, cue6 young leaf, toward the
margin (mostly pale tissue); G, cue6 young leaf, toward
the midvein (increased greening); H, cue6 mature leaf
(greenest tissue for this mutant); I, cue8; J,
cue9 (section bordering the midvein, to the left). Bar
in A = 100 μm; all panels are to same scale.