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Fig. 1. Movement of TVCVMP:GFP, 2xGFP and NLS:2xGFP. Confocal images of
GFP fluorescence in inflorescence apices (A-C) and leaf epidermis (D-F) of
2-week-old ML1::TVCVMP:GFP (A,D), ML1::2xGFP
(B,E) and ML1::NLS:2xGFP (C,F) transgenic plants.
Inset in A shows that TVCVMP:GFP RNA is restricted to the L1, as
detected by in situ hybridization. In D-F, the GFP fluorescence channel is
overlaid with the transmissible light channel. TVCVMP:GFP is found in all
cells in the inflorescence apex (A), and it is associated with the cell wall
in a punctate pattern (D). 2xGFP forms a gradient of six to ten cells in
the apex, with the highest concentration in L1 (B). It is located in both the
nucleus and the cytoplasm (E). NLS:2xGFP can move efficiently only one
cell layer from the L1 in the apex (C), and it appears mostly nuclear (F).