| DIFFERENTIATION OF THE CHLOROPLAST OF ANTHOCEROS. | |
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MedLine Citation:
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PMID: 14079498 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It has been demonstrated that the following changes accompany differentiation in the plastid of the liverwort Anthoceros eckloni. The inner membrane of the plastid folds to give rise to small vesicles which grow and may fuse to form thylakoids, i.e. flat bags. The thylakoids may "pair" to produce the doublets (thick membranes) of the grana. The doublets may be produced also by the invagination of a thylakoid. In both cases, the doublets are produced only where outside-to-outside contact of thylakoid membranes occurs, which supports the thesis that the thylakoid membranes are polarized. The thylakoids also fold outwards, anastomose, and may fuse. This results in a complicated membrane system, for which an interpretation becomes very difficult. The starch is produced in the matrix, and the pyrenoid bodies are interpreted as specialized regions of the matrix. Younger plastids have grana, but the mature plastid has so many doublets that distinct grana cannot be recognized. This interpretation of the changes which occur during the differentiation of the plastid differs radically from those of Menke (1961) and Manton (1962) who studied this same genus, but is compatible with findings in algae and angiosperms. |
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Authors:
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R WILSENACH |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Journal of cell biology Volume: 18 ISSN: 0021-9525 ISO Abbreviation: J. Cell Biol. Publication Date: 1963 Aug |
Date Detail:
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Created Date: 1964-03-01 Completed Date: 1996-12-01 Revised Date: 2010-06-22 |
Medline Journal Info:
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Nlm Unique ID: 0375356 Medline TA: J Cell Biol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 419-28 Citation Subset: OM |
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| MeSH Terms | |
Descriptor/Qualifier:
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Cell Biology* Cell Division* Chlorophyll* Microscopy, Electron* Photosynthesis* Plants* Research* Starch* |
| Chemical | |
Reg. No./Substance:
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1406-65-1/Chlorophyll; 9005-25-8/Starch |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
| Full Text | |
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Journal Information Journal ID (nlm-ta): J Cell Biol ISSN: 0021-9525 ISSN: 1540-8140 Publisher: The Rockefeller University Press |
Article Information Download PDF  Copyright © 1963 by The Rockefeller Institute Press Received Day: 15 Month: 10 Year: 1962 Print publication date: Day: 1 Month: 8 Year: 1963 Volume: 18 Issue: 2 First Page: 419 Last Page: 428 ID: 2106302 PubMed Id: 14079498 |
| DIFFERENTIATION OF THE CHLOROPLAST OF ANTHOCEROS | |
| R. Wilsenach | |
| From the Botany Department, University of the Witwatersrand, Johannesburg, Republic of South Africa |
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