NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Distribution of calmodulin in corn seedlings - Immunocytochemical localization in coleoptiles and root apicesImmunofluorescence techniques have been used to study the distribution of calmodulin in several tissues in etiolated corn (Zea mays, var. Bear Hybrid) seedlings. Uniform staining was seen in the background cytoplasm of most cell types. Cell walls and vacuoles were not stained. In coleoptile mesophyll cells the nucleoplasm of most nuclei was stained as was the stroma of most amyloplasts. The lumen border of mature tracheary elements in coleoptiles also stained. In the rootcap the most intensely stained regions were the cytoplasms of columella cells and of the outermost cells enmeshed in the layer of secreted slime. Nuclei in the rootcap cells did not stain distinctly, but those in all cell types of the root meristem did. Also in the root meristem, the cytoplasm of metaxylem elements stained brightly. These results are compared and contrasted with previous data on the localization of calmodulin in pea root apices and epicotyls and discussed in relation to current hypotheses on mechanisms of gravitropism.
Document ID
19870065712
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Dauwalder, M.
(Texas Univ. Austin, TX, United States)
Roux, S. J.
(Texas, University Austin, United States)
Date Acquired
August 13, 2013
Publication Date
January 1, 1986
Publication Information
Publication: Advances in Space Research
Volume: 6
Issue: 12 1
ISSN: 0273-1177
Subject Category
Life Sciences (General)
Accession Number
87A52986
Funding Number(s)
CONTRACT_GRANT: NSG-7480
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available