| CELL TYPE | CYTOPLASMIC FEATURES | CELL WALL FEATURES | 3-D GEOMETRY | ||||
| Sieve Cells
Closely associated with parenchyma cells called Albuminous Cells |
No nucleus at maturity
No chloroplasts No mitochondria Cytoplasm consists of P2 protein fibrils (slime) and Convoluted and vesiculated Endoplasmic Reticulum in a parietal position (around the circumference of the cell) |
Thickened primary cell wall with regions
of numerous primary pit fields associated with callose.
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