The involvement of Glucose-6-phosphatase in mucilage secretion by root cap cells of Zea mays

R. Moore, C. E. Mcclelen

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


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 languageEnglish (US)
Pages (from-to)139-142
Number of pages4
JournalAnnals of Botany
Issue number1
StatePublished - Jul 1985

Bibliographical note

Funding 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
  • Corn
  • Cytochemistry
  • Glucose-6-phosphatase
  • Mucilage
  • Peripheral cell
  • Secretion
  • Zea mays


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