The Location and Function of Cytochrome c2 in Rhodopseudomonas capsulata Membranes

1975 ◽  
Vol 58 (1) ◽  
pp. 65-72 ◽  
Author(s):  
A. HOCHMAN ◽  
I. FRIDBERG ◽  
C. CARMELI
Keyword(s):  
Rhodopseudomonas Capsulata ◽  
Cytochrome C2 ◽  
And Function

scholarly journals Changes in the acyl lipid composition of photosynthetic bacteria grown under photosynthetic and non-photosynthetic conditions

1979 ◽  
Vol 181 (2) ◽  
pp. 339-345 ◽  
Author(s):  
Nicholas J. Russell ◽  
John L. Harwood
Keyword(s):  
Fatty Acids ◽  
Photosynthetic Bacteria ◽  
Rhodospirillum Rubrum ◽  
Relative Proportion ◽  
Photosynthetic Apparatus ◽  
Growth Conditions ◽  
Rhodopseudomonas Capsulata ◽  
Rhodopseudomonas Sphaeroides ◽  
Acyl Lipids ◽  
And Function

The acyl lipids and their constituent fatty acids were studied in the photosynthetic bacteria Rhodospirillum rubrum, Rhodopseudomonas capsulata and Rhodopseudomonas sphaeroides, which were grown under photosynthetic and non-photosynthetic conditions. The major lipids were found to be phosphatidylethanolamine, phosphatidylglycerol and cardiolipin in each bacterium. The two Rhodopseudomonas species also contained significant quantities of phosphatidylcholine. Other acyl lipids accounted for less than 10% of the total. On changing growth conditions from non-photosynthetic to photosynthetic a large increase in the relative proportion of phosphatidylglycerol was seen at the expense of phosphatidyl-ethanolamine. In Rhodospirillum rubrum the fatty acids of the major phospholipids showed an increase in the proportion of palmitate and stearate and a decrease in palmitoleate and vaccenate on changing growth conditions to photosynthetic. In contrast, the exceptionally high levels (>80%) of vaccenate in individual phospholipids of Rhodopseudomonas capsulata and Rhodopseudomonas sphaeroides were unaffected by changing growth conditions to photosynthetic. Analysis of the lipids of chromatophores, isolated from the three bacteria, showed that these preparations were enriched in phosphatidylglycerol. The large increase in this phospholipid, seen during growth under photosynthetic conditions, appeared, therefore, to be due to a proliferation of chromatophore membranes. Possible roles for acyl lipids in the formation and function of the photosynthetic apparatus of bacteria are discussed.

Crystallization and preliminary analysis of crystals of cytochrome c2 from Rhodopseudomonas capsulata

1987 ◽  
Vol 195 (1) ◽  
pp. 229-231 ◽  
Author(s):  
Hazel M. Holden ◽  
Terrance E. Meyer ◽  
Michael A. Cusanovich ◽  
Fevzi Daldal ◽  
Ivan Rayment
Keyword(s):  
Preliminary Analysis ◽  
Rhodopseudomonas Capsulata ◽  
Cytochrome C2

scholarly journals Cytochrome c2 is not essential for photosynthetic growth of Rhodopseudomonas capsulata

1986 ◽  
Vol 83 (7) ◽  
pp. 2012-2016 ◽  
Author(s):  
F. Daldal ◽  
S. Cheng ◽  
J. Applebaum ◽  
E. Davidson ◽  
R. C. Prince
Keyword(s):  
Rhodopseudomonas Capsulata ◽  
Cytochrome C2
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