Document Detail


Potato tuber phospholipids contain colneleic acid in the 2-position.
MedLine Citation:
PMID:  12633870     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Colneleic acid (9-[1'(E),3'(Z)-nonadienyloxy]-8(E)-nonenoic acid) is produced from linoleic acid by the sequential action of 9-lipoxygenase and divinyl ether synthase. We demonstrate that a small fraction of the colneleic acid in potato tubers is esterified in phospholipids. This colneleic acid was released by chemical hydrolysis and a phospholipase A(2), but not by a lipase with 1-acyl specificity. Phosphatidylcholine, phosphatidylethanolamine, and phosphatidylinositol contain molecular species with nominal masses consistent with identification as palmitoyl,colneleoyl species. Exact mass analysis of its fragments confirmed the identity of palmitoyl,colneloyl phosphatidylinositol. To our knowledge, this work represents the first identification of a colneleoyl phospholipid.
Authors:
Marie-Laure Fauconnier; Todd D Williams; Michel Marlier; Ruth Welti
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  FEBS letters     Volume:  538     ISSN:  0014-5793     ISO Abbreviation:  FEBS Lett.     Publication Date:  2003 Mar 
Date Detail:
Created Date:  2003-03-13     Completed Date:  2003-04-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0155157     Medline TA:  FEBS Lett     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  155-8     Citation Subset:  IM    
Affiliation:
Unité de Chimie Générale et Organique, Faculté Universitaire des Sciences Agronomiques de Gembloux, Passage des Déportés 2, B-5030 Gembloux, Belgium.
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MeSH Terms
Descriptor/Qualifier:
Chromatography, High Pressure Liquid
Chromatography, Thin Layer
Fatty Acids, Unsaturated / chemistry,  metabolism*
Phospholipids / metabolism*
Solanum tuberosum / metabolism*
Spectrometry, Mass, Electrospray Ionization
Chemical
Reg. No./Substance:
0/Fatty Acids, Unsaturated; 0/Phospholipids; 52761-34-9/colneleic acid

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