On the structure of the spinach chloroplast
| Autor: | C.H. Paris, M. Bustraan, J.B. Thomas |
|---|---|
| Rok vydání: | 1952 |
| Předmět: |
Chlorophyll
Microscopy Chloroplasts food and beverages Electrons General Medicine Biology law.invention Chloroplast Microscopy Electron Crystallography Membrane Stroma Electron diffraction Psychosomatic Medicine Spinacia oleracea law Natuur- en Sterrenkunde Vegetables Electron microscope Spinach chloroplast Bacterial outer membrane |
| Zdroj: | Biochimica et Biophysica Acta, 90. Elsevier STARTPAGE=90;ISSN=0006-3002;TITLE=Biochimica et Biophysica Acta |
| ISSN: | 0006-3002 |
| DOI: | 10.1016/0006-3002(52)90012-7 |
| Popis: | The structure of spinach chloroplasts was investigated with the aid of the electron microscope. It has been established that: 1. 1. the outer membrane of the chloroplasts is composed of both proteins and lipoids. 2. 2. the stroma is also built up by these components. 3. 3. within the stroma membranes with surface design occur. 4. 4. a proteinaceous frame—which most probably is no artefact—occurs in the stroma. This framework strikingly resembles that found by Lehmann and Biss 21 in the Tubifex egg. 5. 5. the grana are surrounded by a membrane composed of proteins and lipoids. Some evidence has been obtained that these substances occur as an outer lipoid layer and an inner proteinaceous layer. 6. 6. in agreement with the results of Frey-Wyssling and Muhlethaler 9, the grana are furthermore composed of proteins discs and lipoids. 7. 7. grana showed one ring in electron diffraction diagrams corresponding with distances of about 2 A. |
| Databáze: | OpenAIRE |
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