Stromules interact with discrete microfilaments A) DIC image of an amyloplast with a thick stromule in dark-grown hypocotyl epidermis. Stromule tip is marked by an arrowhead in A-C. B) A thick MF bundle makes close contact with the amyloplast stromule from A (arrow). C) In a different focal plane, the same stromule is surrounded by a meshwork of fine MFs (arrow). In B&C, GFP-hTalin fluorescence is false-colored red and a DIC image (identical to the one shown in A) is false-colored blue. Bars: 5 μm.