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- Q19903968 subject Q6442932.
- Q19903968 subject Q7215865.
- Q19903968 abstract "Divinylether fatty acids contain a fatty acid chemically combined with a doubly unsaturated carbon chain linked by an oxygen atom (ether).Fatty acid hydroperoxides generated by plant lipoxygenases from linoleic and linolenic acids are known to serve as substrates for a divinyl ether synthase which produces divinyl ether fatty acids. Up to date divinyl ethers were detected only within the plant kingdom.The discovery of that class of compounds dates back to 1972, when the structures of two ether C18 fatty acids generated by homogenates of the potato tuber were described. These compounds, named colneleic acid (from linoleic acid) and colnelenicacid (from linolenic acid), could be also produced in potato leaves and tomato roots by rearrangement of 9-hydroperoxides.Isomers of colneleic and colnelenic acids were isolated from homogenates of leaves of Clematis vitalba (Ranunculaceae).Similarly, 13-lipoxygenase-generated hydroperoxides serve as precursor of other divinyl ether fatty acids which are produced in bulbs of garlic or Ranunculus leaves. These compounds were named etheroleic and etherolenic acids. Etheroleic acid has systematic name 12-[1′E-hexenyloxy]-9Z,11Z-dodecadienoic acid. Etherolenic acid has systematic name (9Z,11E,1'E,3'Z)-12-(1',3'-Hexadienyloxy)-9,11-dodecadienoic acid.The physiological significance of divinyl ethers is still not fully studied. As infection of potato leaves leads to increased levels of divinyl ether synthase, it was suggested that this pathway could be of importance in the defense of plants against attacking pathogens.Similar structures have been discovered in the brown alga Laminaria sinclairii, with 18 or 20 carbons and 4, 5 or 6 double bonds, and in the red alga Polyneura latissima, with 20 carbons and 5 double bonds.".
- Q19903968 thumbnail Colneleic_acid.svg?width=300.
- Q19903968 wikiPageWikiLink Q145869.
- Q19903968 wikiPageWikiLink Q160100.
- Q19903968 wikiPageWikiLink Q23400.
- Q19903968 wikiPageWikiLink Q256502.
- Q19903968 wikiPageWikiLink Q407426.
- Q19903968 wikiPageWikiLink Q6442932.
- Q19903968 wikiPageWikiLink Q7215865.
- Q19903968 comment "Divinylether fatty acids contain a fatty acid chemically combined with a doubly unsaturated carbon chain linked by an oxygen atom (ether).Fatty acid hydroperoxides generated by plant lipoxygenases from linoleic and linolenic acids are known to serve as substrates for a divinyl ether synthase which produces divinyl ether fatty acids.".
- Q19903968 label "Divinylether fatty acids".
- Q19903968 depiction Colneleic_acid.svg.