PMID: 2124926Nov 30, 1990Paper

Differences in the susceptibility of plant membrane lipids to peroxidation

Biochimica Et Biophysica Acta
B D McKersieL C Krieg

Abstract

Peroxidation of three membrane lipid preparations from plants was initiated using Fe-EDTA and ascorbate and quantified as the production of aldehydes and loss of esterified fatty acids. Using liposomes prepared from commercial soybean asolecithin, the degree of peroxidation was shown to be dependent on: the free radical dose, which was varied by the ascorbate concentration; the presence of tocopherol in the liposome; the configuration, of the liposome, multilamellar or unilamellar; and time after initiation. There were dramatic interactions among these factors which led to the conclusion that in comparing the susceptibility of different membrane preparations it is essential to examine the kinetics of the peroxidation reactions. The composition of the liposome was a major determinant of the degree of peroxidation and of the type of degradative reactions initiated by the oxygen free radicals. A fresh polar lipid extract from Typha pollen had very similar fatty acid composition to the soybean asolecithin, but was more resistant to peroxidation as shown by less aldehyde production and increased retention of unsaturated fatty acids after treatment. Similarly, microsomal membranes from the crowns of non-acclimated and cold acclimated...Continue Reading

References

Oct 1, 1987·Lipids·P W AlbroJ L Schroeder
Aug 6, 1981·Biochimica Et Biophysica Acta·M KunimotoS Nojima

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Citations

Dec 28, 2007·Free Radical Biology & Medicine·Jeffrey AtkinsonRichard M Epand
Apr 24, 2015·Frontiers in Plant Science·Franck E DayanLouis G Boddy
Feb 11, 2012·Toxicology and Industrial Health·Amit Kumar Gupta, Masood Ahmad
May 12, 2019·Development·Vrushali PatilSarah M McKim
Feb 2, 2010·The Journal of Immunology : Official Journal of the American Association of Immunologists·Aniko CsillagAttila Bacsi

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