Figure 3.

Light-dependent expression of AtFRO6. A, A diagram showing the AtFRO6∷GUS reporter construct (not in scale for GUS coding sequence). The putative transcription start site is indicated by an arrow (+1). Multiple putative LREs are shown. B, Seven-day-old pFul transgenic seedlings germinated and grown in the light were assayed for the GUS activity by histochemical staining (stained for 6 h). C, Seven-day-old pFul transgenic seedlings germinated and grown in the dark were assayed for GUS activity (stained for 16 h). The insert shows an enlarged view of the cotyledons. Bar = 2 mm.