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Membrane lipid composition of the unusual cyanobacterium Gloeobacter violaceus sp PCC 7421, which lacks sulfoquinovosyl diacylglycerol
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). (Eva Selstam)
1996 (English)In: Archives of Microbiology, ISSN 0302-8933, E-ISSN 1432-072X, Vol. 166, no 2, 132-135 p.Article in journal (Refereed) Published
Abstract [en]

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 alpha 18:3 fatty acids.

Place, publisher, year, edition, pages
1996. Vol. 166, no 2, 132-135 p.
Keyword [en]
cyanobacteria, fatty acid, Gloeobacter violaceus sp. PCC 7421, lipid, membrane, thylakoid, photosynthesis, sulfoquinovosyl diacylglycerol
URN: urn:nbn:se:umu:diva-44691ISI: A1996VE57800010OAI: diva2:428164
Available from: 2011-06-29 Created: 2011-06-09 Last updated: 2011-06-29

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