Nomenclature Abstract for Rhodospirillum molischianum Giesberger 1947 (Approved Lists 1980).

2003 ◽  
Author(s):  
Charles Thomas Parker ◽  
Nicole Danielle Osier ◽  
George M Garrity ◽  
Dorothea Taylor
Keyword(s):  
Rhodospirillum Molischianum

Steric and hydrophobic effects in alkyl isocyanide binding to Rhodospirillum molischianum cytochrome c'

Biochemistry ◽  
1989 ◽  
Vol 28 (5) ◽  
pp. 2140-2144 ◽  
Author(s):  
Mehul J. Patel ◽  
Richard J. Kassner ◽  
Terrence E. Meyer ◽  
Michael A. Cusanovich
Keyword(s):  
Cytochrome C ◽  
Hydrophobic Effects ◽  
Alkyl Isocyanide ◽  
Rhodospirillum Molischianum

Isolation and chemical properties of two c-type cytochromes of Rhodospirillum molischianum

Biochemistry ◽  
1970 ◽  
Vol 9 (9) ◽  
pp. 1984-1990 ◽  
Author(s):  
Karl Dus ◽  
Torgeir Flatmark ◽  
Henk DeKlerk ◽  
Martin D. Kamen
Keyword(s):  
Chemical Properties ◽  
Rhodospirillum Molischianum ◽  
And Chemical Properties

scholarly journals OBSERVATIONS ON THE STRUCTURE OF RHODOSPIRILLUM MOLISCHIANUM

1965 ◽  
Vol 25 (2) ◽  
pp. 261-278 ◽  
Author(s):  
Donald D. Hickman ◽  
Albert W. Frenkel
Keyword(s):  
Cytoplasmic Membrane ◽  
Rhodospirillum Molischianum ◽  
Two Sides

The lamellae of the bacterium Rhodospirillum molischianum originate as extensions of the cytoplasmic membrane into the cytoplasm of the cell. Initially, these extensions are narrow folds and occur independently of one another. The first lamellae to appear average about 80 A in width, representing one side of the infolded cytoplasmic membrane, or 160 A when the two sides of the fold are closely appressed. The 160-A lamellae increase in number and may associate to form larger lamellae, which represent varying degrees of association between adjacent folds. Later, the space within each fold increases; the two appressed regions of the cytoplasmic membrane in each fold separate to form distinct invaginations, and the lamellae observed at this stage are formed by an association of the sides of adjacent invaginations.

scholarly journals THE PHOTOSYNTHETIC APPARATUS OF RHODOSPIRILLUM MOLISCHIANUM

1965 ◽  
Vol 26 (2) ◽  
pp. 395-412 ◽  
Author(s):  
Sarah P. Gibbs ◽  
W. R. Sistrom ◽  
Patricia B. Worden
Keyword(s):  
Cell Membrane ◽  
Photosynthetic Apparatus ◽  
Variable Number ◽  
Electron Microscopic ◽  
Microscopic Appearance ◽  
Whole Cells ◽  
Cell Extracts ◽  
Internal Membrane ◽  
Rhodospirillum Molischianum ◽  
In Cells

By varying the light intensity and temperature during growth it is possible to obtain cultures of Rhodospirillum molischianum in which the specific bacteriochlorophyll contents differ by as much as fivefold. We used such cultures to compare the changes in the electron microscopic appearance of the cells with the changes in the amount and bacteriochlorophyll content of chromatophore material isolated from cell extracts. The cells contained a variable number of internal membranes which are invaginations of the cell membrane. The shape, size, number, and arrangement of the infoldings varied as the specific bacteriochlorophyll content of the cells changed. In cells with little bacteriochlorophyll, the invaginations were mostly tubular. In cells with larger amounts of bacteriochlorophyll, the invaginations were disc-shaped and the discs were appressed together in stacks of 2 to 10 discs each. Variations in the number of discs per stack could be accounted for by a simple statistical model. The average area per disc increased with increasing bacteriochlorophyll content. Quantitative estimations of the relative volumes occupied by membranes in cells with four different bacteriochlorophyll contents showed that the amount of internal membrane alone had no direct relationship with the bacteriochlorophyll content of the cells; however, the total amount of membrane (cell membrane plus internal membrane) was directly proportional to the bacteriochlorophyll content. The specific bacteriochlorophyll content of isolated chromatophore material was proportional to the bacteriochlorophyll content of whole cells; the total amount of chromatophore material was independent of the bacteriochlorophyll content of whole cells. Several possible explanations of this paradoxical discrepancy between the electron microscope observations and the analytical results are discussed.

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