Final answer:
During plant cell cytokinesis, a network of microtubules forms around the cell plate, which eventually merges with the cell walls to form the new cell wall between the daughter cells.
Step-by-step explanation:
During plant cell cytokinesis, a network of microtubules forms around the cell plate as Golgi vesicles fuse together. The cell plate is a temporary structure called a phragmoplast that forms at the metaphase plate. Eventually, the cell plate enlarges and merges with the cell walls to form the new cell wall between the daughter cells.