Plasmodesmata? cytoplasmic channels łšczšce cells? jednš constitute a feature of the construction odróżniajšcych komórkowš plants from pets. Although plasmodesmata were discovered over a hundred years ago, it was only in the last decade brought closer to an understanding of their role in the regulation of metabolic and signaling between cells of compounds. Of particular interest are the data odnoszšce plasmodesmata function in the regulation of protein transport ponadkomórkowego and nucleic acids. Recent reports suggest that these macromolecules Mogs play the role of media in a previously unknown signaling system in plants.