In order to determine the involvement of glucose-6-phosphatase in mucilage secretion by root cap cells, we have cytochemically localized the enzyme in columella and peripheral cells of root caps of Zea mays. Glucose-6-phosphatase is associated with the plasmalemma and cell wall of columella cells. As columella cells differentiate into peripheral cells and begin to produce and secrete mucilage, glucose-6-phosphatase staining intensifies and becomes associated with the mucilage and, to a lesser extent, the cell wall. Cells being sloughed from the cap are characterized by glucose-6-phosphatase staining being associated with the vacuole and plasmalemma. These changes in enzyme localization during cellular differentiation in root caps suggest that glucose-6-phosphatase is involved in the production and/or secretion of mucilage by peripheral cells of Z. mays.
|Original language||English (US)|
|Number of pages||4|
|Journal||Annals of Botany|
|State||Published - Jul 1985|
Bibliographical noteFunding Information:
This research was supported by a grant from the University Research Committee of Baylor University.
Copyright 2018 Elsevier B.V., All rights reserved.
- Columella cell
- Peripheral cell
- Zea mays