The biochemistry and molecular biology of plant lipid biosynthesis

1992 ◽  
Vol 19 (1) ◽  
pp. 169-191 ◽  
Author(s):  
Antoni R. Slabas ◽  
Tony Fawcett
Keyword(s):  
Molecular Biology ◽  
Lipid Biosynthesis ◽  
Plant Lipid

Plant Lipid-Transfer Proteins: Structure, Function and Molecular Biology

1989 ◽  
pp. 341-350 ◽  
Author(s):  
V. Arondel ◽  
F. Tchang ◽  
Ch. Vergnolle ◽  
A. Jolliot ◽  
M. Grosbois ◽  
...  
Keyword(s):  
Molecular Biology ◽  
Structure Function ◽  
Lipid Transfer ◽  
Lipid Transfer Proteins ◽  
Plant Lipid

scholarly journals Plant lipid biosynthesis in 1959 and 1984

1984 ◽  
Vol 25 (13) ◽  
pp. 1508-1510
Author(s):  
P K Stumpf
Keyword(s):  
Lipid Biosynthesis ◽  
Plant Lipid

scholarly journals A re-examination in vivo of the phosphatidylcholine–galactolipid metabolic relationship during plant lipid biosynthesis

1997 ◽  
Vol 327 (3) ◽  
pp. 853-858 ◽  
Author(s):  
Sébastien MONGRAND ◽  
Jean-Jacques BESSOULE ◽  
Claude CASSAGNE
Keyword(s):  
Fatty Acids ◽  
Endoplasmic Reticulum ◽  
Positional Distribution ◽  
Lipid Biosynthesis ◽  
Allium Porrum ◽  
Plant Lipid ◽  
Substantial Decline

It remains unclear how and in what form the lipids synthesized in plant endoplasmic reticulum are exported to chloroplasts and used as precursors for the biosynthesis of plastid galactolipids, which are the most abundant lipids on Earth. Neither the mechanism of transfer nor the nature of the lipids imported into plastids has been elucidated. To characterize events occurring in vivo, the labelling of lipids from 15-day-old leek seedlings (Allium porrum, var. furor) was studied using pulse-chase experiments. During the chase, a substantial decline in the radioactivity incorporated into phosphatidylcholine (and not in other phospholipids) was accompanied by an increase in the label found in galactolipids. The positional distribution of labelled fatty acids in phosphatidylcholine and galactolipids was further studied as a function of the chase time; whereas phosphatidylcholine was preferentially labelled at the sn-2 position, the increase in radioactivity in galactolipids mainly concerned the sn-1 position. These results strongly suggest that the diacylglycerol moiety of phosphatidylcholine might not be integrated as a whole in the galactolipid.

Use of control analysis to study the regulation of plant lipid biosynthesis

2002 ◽  
Vol 30 (6) ◽  
pp. 1043-1046 ◽  
Author(s):  
U. S. Ramli ◽  
D. S. Baker ◽  
P. A. Quant ◽  
J. L. Harwood
Keyword(s):  
Biosynthetic Pathway ◽  
Fatty Acid Biosynthesis ◽  
Elaeis Guineensis ◽  
Lipid Biosynthesis ◽  
Control Analysis ◽  
Experimental Conditions ◽  
Plant Lipid ◽  
Oil Crops ◽  
First Time ◽  
Single Enzyme

Control analysis is a powerful method to quantify the regulation of metabolic pathways. We have applied it to lipid biosynthesis for the first time by using model tissue culture systems from the important oil crops, olive (Olea europaea L.) and oil palm (Elaeis guineensis Jacq.). By the use of top-down control analysis, fatty acid biosynthesis has been shown to exert more control than lipid assembly under different experimental conditions. However, both parts of the lipid biosynthetic pathway are important, so that attempts to alter oil yield by manipulating the activity of a single enzyme step are very unlikely to produce significant increases.

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