Image courtesy of Laryssa Halat in Dr. Geoffrey Wasteneys lab, Dept of Botany.
Images are acquired by PE spinning disk confocal microscope, and are stitched confocal Z-projections of fluorescent proteins in the Arabidopsis root apical meristem. BRI1(green) is a plasma membrane receptor for the brassinosteroid hormone. CLASP (blue) binds to microtubules and can be found at cell edges in the root. Microtubules (red) can be observed in a variety of different array formations in the root, and are important for cell division and expansion.