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ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS
The components of higher-plant cell walls which become electron-opaque after staining with ruthenium-osmium were studied by electron microscopy. A fibrillar material which absorbs this stain is a major wall constituent in the root epidermal cells of carrot and morning glory. In both form and size, t...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1972
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2108784/ https://www.ncbi.nlm.nih.gov/pubmed/4554985 |
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author | Leppard, Gary G. Colvin, J. Ross |
author_facet | Leppard, Gary G. Colvin, J. Ross |
author_sort | Leppard, Gary G. |
collection | PubMed |
description | The components of higher-plant cell walls which become electron-opaque after staining with ruthenium-osmium were studied by electron microscopy. A fibrillar material which absorbs this stain is a major wall constituent in the root epidermal cells of carrot and morning glory. In both form and size, these fibrils resemble those found on the surface of suspension-cultured cells of the same species Some cells of woody species show an irregular distribution of electron-opaque material in the cell wall matrix and middle lamella. This material, which has an amorphous appearance with many electron stains, is shown by ruthenium-osmium staining to be an aggregate of discrete granules, 150–220 A in diameter. These observations are not consistent with the concept of the cell wall matrix and middle lamella as an amorphous, uniform gel |
format | Text |
id | pubmed-2108784 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1972 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21087842008-05-01 ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS Leppard, Gary G. Colvin, J. Ross J Cell Biol Article The components of higher-plant cell walls which become electron-opaque after staining with ruthenium-osmium were studied by electron microscopy. A fibrillar material which absorbs this stain is a major wall constituent in the root epidermal cells of carrot and morning glory. In both form and size, these fibrils resemble those found on the surface of suspension-cultured cells of the same species Some cells of woody species show an irregular distribution of electron-opaque material in the cell wall matrix and middle lamella. This material, which has an amorphous appearance with many electron stains, is shown by ruthenium-osmium staining to be an aggregate of discrete granules, 150–220 A in diameter. These observations are not consistent with the concept of the cell wall matrix and middle lamella as an amorphous, uniform gel The Rockefeller University Press 1972-06-01 /pmc/articles/PMC2108784/ /pubmed/4554985 Text en Copyright © 1972 by The Rockefeller University Press This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Leppard, Gary G. Colvin, J. Ross ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS |
title | ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS |
title_full | ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS |
title_fullStr | ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS |
title_full_unstemmed | ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS |
title_short | ELECTRON-OPAQUE FIBRILS AND GRANULES IN AND BETWEEN THE CELL WALLS OF HIGHER PLANTS |
title_sort | electron-opaque fibrils and granules in and between the cell walls of higher plants |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2108784/ https://www.ncbi.nlm.nih.gov/pubmed/4554985 |
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