Document Detail

Preliminary analysis of lipids and fatty acids of green bacteria and Chloroflexus aurantiacus.
MedLine Citation:
PMID:  4421249     Owner:  NLM     Status:  MEDLINE    
The complex lipids and fatty acids of the seven type species of green bacteria and three strains of Chloroflexus aurantiacus were analyzed. The green bacteria contained lipids that behaved as cardiolipin and phosphatidylglycerol on thin-layer chromatography. They did not contain phosphatidylethanolamine or phosphatidylserine. Similarly, Chloroflexus contained lipids that behaved as phosphatidylglycerol and phosphatidylinositol on thin-layer chromatography and did not contain phosphatidylethanolamine or phosphatidylserine. The green bacteria contained glycolipids I and II of Constantopoulos and Bloch (monogalactosyldiglyceride and a galactose- and rhamnose-containing diglyceride). Chloroflexus exhibited galactose-containing glycolipids that behaved identically with the mono- and digalactosyldiglycerides of spinach on thin-layer chromatography, and each contained galactose as well as at least one other sugar. The fatty acids of both groups of bacteria consisted entirely of saturated and monounsaturated fatty acids. In the green bacteria, myristic, palmitic, and hexadecenoic acids predominated. In Chloroflexus, palmitic, stearic, and oleic acids predominated. The positions of the double bonds in the monounsaturated fatty acids of Chloroflexus indicated synthesis by the anaerobic pathway. The lipid analyses suggest a close relationship between the green bacteria and Chloroflexus and further suggest that these groups of photosynthetic bacteria are more closely related to the blue-green algae than are the purple bacteria.
C N Kenyon; A M Gray
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Journal of bacteriology     Volume:  120     ISSN:  0021-9193     ISO Abbreviation:  J. Bacteriol.     Publication Date:  1974 Oct 
Date Detail:
Created Date:  1975-01-13     Completed Date:  1975-01-13     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2985120R     Medline TA:  J Bacteriol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  131-8     Citation Subset:  IM    
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MeSH Terms
Algae, Green / analysis*
Bacteria / analysis*
Chromatography, Thin Layer
Diglycerides / analysis
Fatty Acids / analysis*
Galactose / analysis
Glycolipids / analysis
Lipids / analysis*
Phosphates / analysis
Phosphatidylinositols / analysis
Phospholipids / analysis
Reg. No./Substance:
0/Diglycerides; 0/Fatty Acids; 0/Glycolipids; 0/Lipids; 0/Phosphates; 0/Phosphatidylinositols; 0/Phospholipids; 26566-61-0/Galactose

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