Divinyl ether fatty acid synthesis in late blight-diseased potato leaves.

Details

Serval ID
serval:BIB_37F5C658F5A1
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Divinyl ether fatty acid synthesis in late blight-diseased potato leaves.
Journal
Plant Cell
Author(s)
Weber H., Chételat A., Caldelari D., Farmer E.E.
ISSN
1040-4651 (Print)
ISSN-L
1040-4651
Publication state
Published
Issued date
1999
Volume
11
Number
3
Pages
485-494
Language
english
Abstract
We conducted a study of the patterns and dynamics of oxidized fatty acid derivatives (oxylipins) in potato leaves infected with the late-blight pathogen Phytophthora infestans. Two 18-carbon divinyl ether fatty acids, colneleic acid and colnelenic acid, accumulated during disease development. To date, there are no reports that such compounds have been detected in higher plants. The divinyl ether fatty acids accumulate more rapidly in potato cultivar Matilda (a cultivar with increased resistance to late blight) than in cultivar Bintje, a susceptible cultivar. Colnelenic acid reached levels of up to approximately 24 nmol (7 microgram) per g fresh weight of tissue in infected leaves. By contrast, levels of members of the jasmonic acid family did not change significantly during pathogenesis. The divinyl ethers also accumulated during the incompatible interaction of tobacco with tobacco mosaic virus. Colneleic and colnelenic acids were found to be inhibitory to P. infestans, suggesting a function in plant defense for divinyl ethers, which are unstable compounds rarely encountered in biological systems.
Keywords
Ethers/metabolism, Fatty Acids/biosynthesis, Fatty Acids, Monounsaturated/metabolism, Fatty Acids, Unsaturated/metabolism, Lipoxygenase/metabolism, Oxidation-Reduction, Phytophthora, Plant Diseases, Plant Leaves/metabolism, Plants, Toxic, Solanum tuberosum/metabolism, Tobacco/metabolism, Vinyl Compounds
Pubmed
Web of science
Open Access
Yes
Create date
24/01/2008 20:05
Last modification date
20/08/2019 13:26
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