Figure 6.

PKS1 and PKS2 Are Involved in the Regulation of the phyA-Mediated VLFR.

One-day-old seedlings of wild-type Columbia (Col) and pks1, pks2, phyA, pks1 phyA, and pks2 phyA mutants were exposed to hourly pulses of FR ([A] and [B]), hourly pulses of R ([C] and [D]), or continuous FR ([E] and [F]) for 3 days before measurements of hypocotyl length ([A], [C], and [E]) and the angle between cotyledons ([B], [D], and [F]). Data shown are means ± se from 32 replicate boxes (10 seedlings per box). Inhibition of hypocotyl elongation is expressed as 1 − length in the light/length in the dark.