ISSN:
1432-072X
Keywords:
Key words Cyanobacteria
;
Fatty acid
;
Gloeobacter
;
violaceus sp. PCC 7421
;
Lipid
;
Membrane
;
Thylakoid
;
Photosynthesis
;
Sulfoquinovosyl diacylglycerol
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Gloeobacter violaceus sp. PCC 7421 is an unusual cyanobacterium with only one cellular membrane, which lacks the thylakoid membranes found in other oxygenic photosynthetic organisms. The cell membrane lipids in G. violaceus sp. PCC 7421 are monogalactosyl diacylglycerol, digalactosyl diacylglycerol, phosphatidyl glycerol and phosphatidic acid in the molar proportion of 51, 24, 18 and 4% respectively. This lipid composition resembles that of the cell membrane from other cyanobacteria, but completely lacks sulfoquinovosyl diacylglycerol. This lack of sulfoquinovosyl diacylglycerol is exceptional for a photosynthetic membrane. The membrane lipids are esterified to 14:0, 16:0, 16:1, 18:0, 18:1, 18:2 and α18:3 fatty acids.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s002030050367
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