title: Phosphate-deficient oat replaces a major portion of the plasma membrane phospholipids with the galactolipid digalactosyldiacylglycerol.
abstract: The plasma membranes of oat normally resemble those of other eukaryotes in containing mainly phospholipids and sterols. We here report the novel finding that the galactolipid digalactosyldiacylglycerol (DGDG) can constitute a substantial proportion of oat plasma membrane lipids, in both shoots and roots. When oat was cultivated under severe phosphate limitation, up to 70% of the plasma membrane phosphoglycerolipids were replaced by DGDG. Our finding not only reflects a far more developed potential for plasticity in plasma membrane lipid composition than often assumed, but also merits interest in the context of the limited phosphate availability in many soils.
authors.affiliation: Göteborg University, Department of Plant Physiology, P.O. Box 461, Sweden.
authors.forename: Mats X
authors.initials: MX
authors.lastname: Andersson
authors.forename: Malin H
authors.initials: MH
authors.lastname: Stridh
authors.forename: Karin E
authors.initials: KE
authors.lastname: Larsson
authors.forename: Conny
authors.initials: C
authors.lastname: Liljenberg
authors.forename: Anna Stina
authors.initials: AS
authors.lastname: Sandelius
mesh_terms: D018554:Avena / Q000378:metabolism*; D002462:Cell Membrane / Q000378:metabolism*; D038983:Galactolipids / Q000378:metabolism*; D007700:Kinetics; D008563:Membrane Lipids / Q000378:metabolism*; D010710:Phosphates / Q000172:deficiency* / Q000378:metabolism*; D010743:Phospholipids / Q000378:metabolism*; D018517:Plant Roots / Q000378:metabolism; D018520:Plant Shoots / Q000378:metabolism
chemical_list: D038983:Galactolipids; D008563:Membrane Lipids; D010710:Phosphates; D010743:Phospholipids; C007388:digalactosyldiacylglycerol