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The involvement of glucose-6-phosphatase in mucilage secretion by root cap cells of Zea maysIn 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.
Document ID
20040089637
Document Type
Reprint (Version printed in journal)
Authors
Moore, R. (Baylor University Waco, Texas 76798, United States)
McClelen, C. E.
Date Acquired
August 21, 2013
Publication Date
January 1, 1985
Publication Information
Publication: Annals of botany
Volume: 56
ISSN: 0305-7364
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Plant Biology
NASA Program Space Biology
NASA Discipline Number 40-10
Non-NASA Center