Phosphate‐deficient oat replaces a major portion of the plasma membrane phospholipids with the galactolipid digalactosyldiacylglycerol

FEBS Letters

Stridh, Malin H¹  Liljenberg, Conny¹  Sandelius, Anna Stina¹  Andersson, Mats X¹  Larsson, Karin E¹ 

[1]Göteborg University, Department of Plant Physiology, P.O. Box 461, SE-405 30 Göteborg, Sweden

关键词: Digalactosyldiacylglycerol;    Galactolipid;    Membrane lipid;    Plasma membrane;    Phosphate deficiency;    Phospholipid;    16:0;    hexadecanoic acid (palmitic acid);    18:2;    octadeca-all cis-9;    12-dienoic acid (linoleic acid);    18:3;    octadeca-all cis-9;    12;    15-trienoic acid (linolenic acid);    DGDG;    digalactosyldiacylglycerol;    MGDG;    monogalactosyldiacylglycerol;    PA;    phosphatidic acid;    PC;    phosphatidylcholine;    PE;    phosphatidylethanolamine;   

DOI  :  10.1016/S0014-5793(03)00109-1

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

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.

【 授权许可】

Unknown