Figure 4

Fluorescence studies of linked biotinylated cellulose and biotinylated microtubule via neutravidin. (a) Rhodamine labeled microtubules viewed under a TRITC filter (emission centered at 630 nm) (b) Alexa fluor labeled cellulose viewed under a Cy5 filter (emission centered at 699 nm). Contrast was enhanced in the images above. The scale bar is 20 μm.