By Felix Bronner and Arnost Kleinteller (Eds.)
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Additional resources for Membrane Lipids of Prokaryotes
Substantial amounts of 14:O are found in the Chrornatiaceae (Kenyon, 1978). 16 HOWARD GOLDFINE C. The Gliding Bacteria and the Sheathed Bacteria So little is known about the lipids of the Myxobacteriales that it would be premature to generalize about the membrane composition of this interesting group of organisms, which is generally capable of forming fruiting bodies. , were shown to be typical of gram-negative bacteria, consisting principally of phosphatidylethanolamine (76%) and phosphatidylglycerol (20%) Oliver and Colwell, 1973).
The former strain has ethanolamine in the polar head group of this lipid, whereas the latter has N-methylethanolamine plus ethanolamine, with the former predominating. In this lipid the R, chain of the plasmalogen has a glycerol substituent: OCH,CHOHCH,OH H,CI I O-CH-CH,-RI As previously noted (Section Il,A,3), 0-alkyl glyceryl ether lipids have also been detected in anaerobic bacteria. They usually represent less than 4% of the total phospholipids. 2. GLYCOSYLDIGLYCERIDES A thorough survey of bacterial glycolipids was published by Shaw (1 975), and some additional material will be found in Lechevalier (1 977).
B . Polar Lipids with a 1 . 2-Diradyl sn-Glycerol Backbone . . . . . C . Other Polar Lipids . . . . . . . . . . . . . D . Nonpolar Lipids . . . . . . . . . . . . . E . Nonextractable Lipids . . . . . . . . . . . . Ill . Distribution of Lipids in Prokaryotes . . . . . . . . . . A . Cyanobacteria (Blue-Green Algae) . . . . . . . . . . B . Phototrophic Bacteria . . . . . . . . . . . . C . The Gliding Bacteria and the Sheathed Bacteria .