Lipid composition of a plasma membrane enriched fraction of maize roots

Gronewald, J.W.; Abou Khalil, W.; Weber, E.J.; Hanson, J.B.

Phytochemistry 21(4): 859-862


ISSN/ISBN: 0031-9422
DOI: 10.1016/0031-9422(82)80080-0
Accession: 000922346

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The lipid composition of a plasma membrane enriched fraction isolated from maize 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 phosphatidyl choline (62%) and phosphatidyl ethanolamine (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%).