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. 2020 Feb 26;11:1053. doi: 10.1038/s41467-020-14905-w

Fig. 1. Transgenic Arabidopsis expressing PIF4-YFP under the epidermis (ML1)- or the vasculature (SUC2)-specific promoter.

Fig. 1

a Histochemical assay of the GUS activity regulated by the PIF4 promoter. PIF4p::GUS transgenic plants were grown under continuous white light for 5 days and harvested for GUS staining. b, c Confocal microscopic images showing vascular- or epidermal-specific PIF4-YFP expression (green; yellow arrowheads) in SUC2p::PIF4;pifq or MLp::PIF4;pifq transgenic plants. PI (gray) was used to counterstain the cell walls. ep, epidermis; co, cortex; en, endodermis; vs, vascular structure. Scale bars = 50 μm.