A look inside a leaf

Micro World Wallpaper

Would you believe that it is a cross section of Cyperus alternifolius (umbrella plant) with intense UV-induced blue-green and chlorophyll (red) fluorescence. The cells with intense red fluorescence are mesophyll cells, while the cells which are highly blue fluorescent are part of the leaf's vascular tissue (e.g. xylem and phloem). 

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