Prolamellar bodies of oat, wheat, and rye: Structure, lipid composition, and adsorption of saponins

PROTOPLASMA ◽  
1988 ◽  
Vol 146 (1) ◽  
pp. 1-9 ◽  
Author(s):  
G. Protoschill-Krebs ◽  
J. Kesselmeier
Keyword(s):  
Lipid Composition ◽  
Prolamellar Bodies ◽  
Structure Lipid

Lipid composition of prolamellar bodies and prothylakoids of wheat etioplasts

1983 ◽  
Vol 57 (4) ◽  
pp. 555-560 ◽  
Author(s):  
Margareta Ryberg ◽  
Anna Stina Sandelius ◽  
Eva Selstam
Keyword(s):  
Lipid Composition ◽  
Prolamellar Bodies

Lipid composition of envelopes, prolamellar bodies and other plastid membranes in etiolated, green and greening wheat leaves

Planta ◽  
1976 ◽  
Vol 129 (3) ◽  
pp. 193-201 ◽  
Author(s):  
Jacqueline Bahl ◽  
Bernadette Francke ◽  
Ren� Mon�ger
Keyword(s):  
Lipid Composition ◽  
Prolamellar Bodies ◽  
Wheat Leaves ◽  
Plastid Membranes

Inhibition of Platelet Aggregation by Ethanol in Vitro Shows Specificity for Aggregating Agent Used and Is Influenced by Platelet Lipid Composition

1982 ◽  
Vol 48 (01) ◽  
pp. 049-053 ◽  
Author(s):  
C G Fenn ◽  
J M Littleton
Keyword(s):  
Platelet Aggregation ◽  
Lipid Composition ◽  
Saturated Fatty Acids ◽  
Calcium Ionophore ◽  
Cholesterol Content ◽  
Membrane Lipid ◽  
Calcium Ionophore A23187 ◽  
Ionophore A23187 ◽  
Increased Sensitivity

SummaryEthanol at physiologically tolerable concentrations inhibited platelet aggregation in vitro in a relatively specific way, which may be influenced by platelet membrane lipid composition. Aggregation to collagen, calcium ionophore A23187 and thrombin (low doses) were often markedly inhibited by ethanol, adrenaline and ADP responses were little affected, and aggregation to exogenous arachidonic acid was actually potentiated by ethanol. Aggregation to collagen, thrombin and A23187 was inhibited more by ethanol in platelets enriched with saturated fatty acids than in those enriched with unsaturated fats. Platelets enriched with cholesterol showed increased sensitivity to ADP, arachidonate and adrenaline but this increase in cholesterol content did not appear to influence the inhibition by ethanol of platelet responses. The results suggest that ethanol may inhibit aggregation by an effect on membrane fluidity and/or calcium mobilization resulting in decreased activity of a membrane-bound phospholipase.

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