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Distribution of calmodulin in corn seedlings: immunocytochemical localization in coleoptiles and root apices.
- Source :
-
Advances in space research : the official journal of the Committee on Space Research (COSPAR) [Adv Space Res] 1986; Vol. 6 (12), pp. 67-70. - Publication Year :
- 1986
-
Abstract
- Immunofluorescence 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.
- Subjects :
- Calcium-Binding Proteins physiology
Calmodulin physiology
Cell Nucleus
Cell Wall
Cotyledon cytology
Cotyledon physiology
Darkness
Immunohistochemistry
Plant Proteins metabolism
Plant Proteins physiology
Plant Roots cytology
Plant Roots physiology
Plastids
Zea mays cytology
Zea mays physiology
Calcium-Binding Proteins metabolism
Calmodulin metabolism
Cotyledon metabolism
Gravitropism physiology
Plant Roots metabolism
Zea mays metabolism
Subjects
Details
- Language :
- English
- ISSN :
- 0273-1177
- Volume :
- 6
- Issue :
- 12
- Database :
- MEDLINE
- Journal :
- Advances in space research : the official journal of the Committee on Space Research (COSPAR)
- Publication Type :
- Academic Journal
- Accession number :
- 11537845
- Full Text :
- https://doi.org/10.1016/0273-1177(86)90068-2