Lipid composition of a plasma membrane enriched fraction of maize roots |
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| Authors: | John W. Gronewald Wafa Abou-Khalil Evelyn J. Weber John B. Hanson |
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| Affiliation: | 1. Department of Botany and SEA, USDA, University of Illinois, Urbana, IL 61801, U.S.A.;2. Agricultural Research, SEA, USDA, University of Illinois, Urbana, IL 61801, U.S.A. |
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| Abstract: | The lipid composition of a plasma membrane enriched fraction isolated from corn (Zea mays) roots was examined. On a wt basis, the lipid: protein ratio was 1.11. Phospholipids comprised 60% of total lipids with the major phospholipids being phosphatidylcholine (62%) and phosphatidylethanolamine (21%). Free sterol was the major neutral lipid. The sterol:phospholipid molar ratio was 0.31. The fatty acid composition of the membrane was predominantly linoleic (60%) and palmitic (30%). |
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| Keywords: | Gramineae corn plasma membrane lipids composition. |
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