part of cell plate assembly plant-type cell wall biogenesis cell plate formation involved in plant-type cell wall biogenesis The cell cycle process in which the cell plate is formed at the equator of the spindle in the dividing cells during early telophase. An example of this is found in Arabidopsis thaliana. cell plate formation involved in cellulose and pectin-containing cell wall biogenesis GO:0009920 biological_process cytoskeleton-dependent cytokinesis mitotic nuclear division mitotic cell cycle process