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Polar protein transport between apical and basal cells during tobacco early embryogenesis

Polar protein transport between apical and basal cells during tobacco early embryogenesis

In an article entitled, “Polar protein transport between apical and basal cells during tobacco early embryogenesis”,  published in the  February 2013 issue of Plant Cell Rep. (32(2):285-91)the lead author Li S. along with three associates at the Hybrid Rice Lab.Wuhan University, China report in tobacco of unidirectional trafficking from  basal-   toward the apical cell. Using photoactivatable green fluorescent protein, they found unidirectional movements of photosyhthates from basal to the apical cell.  They discovered the presence of a large number of plasmodesmata in the walls connecting the basal and apical cells facilitating cell-to-cell communication between apical and basal cells during early embryogenesis. Their data show a possible unique method of cell-to-cell communication between apical and basal cells during early embryogenesis.

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