Degradation of lipoxygenase-derived oxylipins by glyoxysomes from sunflower and cucumber cotyledons.

ABSTRACT:

Background

Oilseed germination is characterized by the degradation of storage lipids. It may proceed either via the direct action of a triacylglycerol lipase, or in certain plant species via a specific lipid body 13-lipoxygenase. For the involvement of a lipoxygenase previous results suggested that the hydroxy- or oxo-group that is being introduced into the fatty acid backbone by this lipoxygenase forms a barrier to continuous β-oxidation.

Results

This study shows however that a complete degradation of oxygenated fatty acids is possible by isolated cucumber and sunflower glyoxysomes. Interestingly, degradation is accompanied by the formation of saturated short chain acyl-CoAs with chain length between 4 and 12 carbon atoms lacking the hydroxy- or oxo-diene system of the oxyg

SUBMITTER: Meyer D 

PROVIDER: S-EPMC3831820 | biostudies-literature | 2013 Nov

REPOSITORIES: biostudies-literature