Abstract
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) |
|---|---|
| Pages (from-to) | 139-142 |
| Number of pages | 4 |
| Journal | Annals of Botany |
| Volume | 56 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jul 1985 |
Bibliographical note
Funding Information:This research was supported by a grant from the University Research Committee of Baylor University.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
Keywords
- Columella cell
- Corn
- Cytochemistry
- Glucose-6-phosphatase
- Mucilage
- Peripheral cell
- Secretion
- Zea mays