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Lipids of a T Strain of Mycoplasma

^a Department of Microbiology, School of Medicine, University of South Dakota, Vermillion, South Dakota 57069

ABSTRACT

Cholesterol, free fatty acids, and phosphatidic acid are the predominant lipids of a T strain of Mycoplasma. The remaining neutral lipids are composed of cholesteryl esters, triglycerides, and diglycerides. Three glucose-containing glycolipids are present in trace amounts. In addition to phosphatidic acid, the phospholipids are comprised of phosphatidyl glycerol, diphosphatidyl glycerol, and phosphatidyl ethanolamine. Another polar lipid was found to be ninhydrin-positive and phosphate-free. It appears to be a diamino hydroxy compound containing adjacent fatty acid ester and N-acyl groups.

¹ Present address: Universita di Palermo, Instituto D'-Igiene, Via del Vespro, 133, Palermo 90127, Italy.