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Fig. 7. Epidermal cell fate is not lost when SHR is expressed in the epidermis. Longitudinal confocal images of the same pGL2::YFP_ER, pWER::SHR::GFP transgenic root (A-C). In the GFP+YFP mode (see Materials and methods) signals from both GFP and YFP_ER are rendered in green (A,B) while in the YFP mode the signal from YFP_ER alone is rendered in yellow (C). The epidermis-specific GL2 promoter is active in cells above the initials containing SHR::GFP (arrowheads), while younger cells contain SHR::GFP but do not show any YFP_ER (arrows). st, stele. Scale bars: 50 µm in A; 25 µm in B,C.

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