A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS

The chloroplasts of internodal cells of Nitella are fixed to a stationary layer of cytoplasm whereas the nuclei and most of the cytoplasm stream along the longitudinal axis. Isolated internodal cells were maintained for several days with half the cell kept in the dark, the other half kept under cont...

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Detalles Bibliográficos
Autores principales: Craig, I. W., Gibor, A.
Formato: Texto
Lenguaje:English
Publicado: The Rockefeller University Press 1970
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2107955/
https://www.ncbi.nlm.nih.gov/pubmed/5411077
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author Craig, I. W.
Gibor, A.
author_facet Craig, I. W.
Gibor, A.
author_sort Craig, I. W.
collection PubMed
description The chloroplasts of internodal cells of Nitella are fixed to a stationary layer of cytoplasm whereas the nuclei and most of the cytoplasm stream along the longitudinal axis. Isolated internodal cells were maintained for several days with half the cell kept in the dark, the other half kept under continuous light. Photosynthetic activity of the cells was checked by placing the cell evenly illuminated in a (14)CO(2) atmosphere. Chloroplasts of the previously dark half of the cell were found to fix only half as much CO(2) as the chloroplasts which were continuously illuminated. These results are discussed in relation to the possible direct effect of light on biosynthetic reactions of mature chloroplasts.
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spelling pubmed-21079552008-05-01 A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS Craig, I. W. Gibor, A. J Cell Biol Article The chloroplasts of internodal cells of Nitella are fixed to a stationary layer of cytoplasm whereas the nuclei and most of the cytoplasm stream along the longitudinal axis. Isolated internodal cells were maintained for several days with half the cell kept in the dark, the other half kept under continuous light. Photosynthetic activity of the cells was checked by placing the cell evenly illuminated in a (14)CO(2) atmosphere. Chloroplasts of the previously dark half of the cell were found to fix only half as much CO(2) as the chloroplasts which were continuously illuminated. These results are discussed in relation to the possible direct effect of light on biosynthetic reactions of mature chloroplasts. The Rockefeller University Press 1970-02-01 /pmc/articles/PMC2107955/ /pubmed/5411077 Text en Copyright © 1970 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
Craig, I. W.
Gibor, A.
A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS
title A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS
title_full A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS
title_fullStr A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS
title_full_unstemmed A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS
title_short A DIRECT LIGHT EFFECT ON MAINTAINING PHOTOSYNTHETIC ACTIVITY OF NITELLA CHLOROPLASTS
title_sort direct light effect on maintaining photosynthetic activity of nitella chloroplasts
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2107955/
https://www.ncbi.nlm.nih.gov/pubmed/5411077
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AT gibora directlighteffectonmaintainingphotosyntheticactivityofnitellachloroplasts

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