Cell walls as a source of signals regulating fate and development of plant cells

Cell walls are the outermost functional zone of plant cells. Although they surround individual cells, at the same time they form a part of supracellular structure - the apoplast. On the other hand, they are also an indispensable component of the structural and functional continuum formed between cell wall, plasma membrane, and cytoskeleton (WMC continuum), and spanning the whole cell. Thus, cell walls are crucial for the communication of cells with their surrounding.