Plasmodesmata and plant cytoskeleton.

Plant cell-to-cell communication is achieved by membranous conduits called plasmodesmata, which bridge the cytoplasm of neighboring cells. A growing body of immunolocalization data shows an association of the cytoskeleton machinery with plasmodesmata. The role of the cytoskeleton in the plasmodesmata-mediated transport has been well documented for virus movement. Because viruses are known to exploit existing host pathways and because the cytoskeleton is involved in intracellular trafficking, the cytoskeleton is thought to drive and target macromolecules to plasmodesmata. It is this link between plasmodesmata and the cytoskeleton that will be described here.