THE FINE STRUCTURE OF RHODOSPIRILLUM RUBRUM
نویسندگان
چکیده
منابع مشابه
The Fine Structure of Rhodospirillum Rubrum
The fine structure of Rhodospirillum rubrum grown under a series of defined conditions has been examined in thin sections prepared by the methods of Ryter and Kellenberger. In cells grown anaerobically at different light intensities, the abundance of 500 A membrane-bounded vesicles in the cytoplasm is inversely related to light intensity, and directly related to cellular chlorophyll content. Wh...
متن کاملObservations on the Fine Structure of Spheroplasts of Rhodospirillum Rubrum
Spheroplasts of the photosynthetic bacterium Rhodospirillum rubrum were prepared from cultures grown in either the presence or absence of light. Cells were converted into spheroplasts by using lysozyme and Versene and fixed in a sucrose-veronal-acetate buffer mixture containing osmium tetroxide. Some preparations were shadow-cast and examined whole; others were embedded in Epon 812 and sectione...
متن کاملThe Structure of Rhodospirillum rubrum
Cells from serial cultures of R. rubrum, grown anaerobically in the light, were harvested at intervals from (1/2) to 15 days and sectioned for electron microscopy by conventional methods. Cells of this species possess a multilayered outer envelope, and the external cell surface is differentiated into ridges extending parallel or obliquely to the long axis of the cell. Cells from very young cult...
متن کاملObservations on the Structure of Rhodospirillum Rubrum
Sections of Rhodospirillum rubrum cells from cultures of different ages have been examined to obtain information on the development of chromatophores in this organism. Cells from the 12-hour cultures studied contain neither distinct invaginations of the cytoplasmic membrane nor distinct chromatophores. The first structures that can be related to chromatophore development occur peripherally in t...
متن کاملThe Structure of Oxidized Cytochrome c, of Rhodospirillum rubrum*
The structure of ferricytochrome cz from the non-sulfur purple photosynthetic bacterium Rhodospirillum rubrum has been determined at 2 A resolution by x-ray crystallographic methods. The 112-residue polypeptide chain encloses a single covalently bound heme in a predominantly hydrophobic environment, leaving only one edge exposed to the solvent at the front of the molecule. Distributed around th...
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ژورنال
عنوان ژورنال: Journal of Cell Biology
سال: 1963
ISSN: 1540-8140,0021-9525
DOI: 10.1083/jcb.16.2.401