Cytokinesis in plant cells

When vesicles from Golgi complexes of each new plant cell coalesce at the cell plate to produce two plasma membranes a sticky material composed of pectins is deposited between them.

After plant cells divide young cells first construct thin primary walls, often adding stronger secondary walls to the inside of the primary wall when growth stops. A sticky middle lamella cements adjacent cells together. The walls do not isolate the cells: the cytoplasm in one cell is continuous with that of its neighbors via plasmodesmata and desmotubules.