Document Detail


Lipid and oxylipin profiles during aging and sprout development in potato tubers (Solanum tuberosum L.).
MedLine Citation:
PMID:  12880871     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Potato tubers (Solanum tuberosum L. cv Bintje) were stored at 20 degrees C for 210 days without desprouting to study the lipoxygenase pathway during aging. After 15 days of storage, potato tubers sprouted, while after 45-60 days, apical dominance was lost and multiple sprouts developed. Analysis of the fatty acid hydroperoxides (HPOs) revealed that 9-S-hydroperoxide of linoleic acid (9-HPOD) was the main oxylipin formed. Between 45 and 60 days of storage, increases in the levels of 9-HPOD and colneleic acid were observed. Analysis of phospholipids and galactolipids by electrospray ionisation tandem mass spectrometry (ESI-MS/MS) showed that a decrease in the levels of phosphatidylcholine (PC), phosphatidylethanolamine (PE), phosphatidylinositol (PI), digalactosyldiacylglycerol (DGDG), and monogalactosyldiacylglycerol (MGDG) occurred between 0 and 45 days of aging. The decrease in the amount of linoleic acid in complex lipids correlates well with the amount of 9-HPOD and colneleic acid produced.
Authors:
Marie Laure Fauconnier; Ruth Welti; Elizabeth Blée; Michel Marlier
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Biochimica et biophysica acta     Volume:  1633     ISSN:  0006-3002     ISO Abbreviation:  Biochim. Biophys. Acta     Publication Date:  2003 Jul 
Date Detail:
Created Date:  2003-07-25     Completed Date:  2003-11-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0217513     Medline TA:  Biochim Biophys Acta     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  118-26     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. fauconnier.ml@fsagx.ac.be
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MeSH Terms
Descriptor/Qualifier:
Ethers / analysis
Fatty Acids, Monounsaturated / analysis
Fatty Acids, Unsaturated / analysis
Galactolipids / analysis
Lipid Metabolism*
Lipid Peroxides / analysis,  metabolism*
Lipids / analysis
Lipoxygenase / metabolism
Membrane Lipids / metabolism
Phospholipids
Solanum tuberosum / growth & development,  metabolism*
Spectrometry, Mass, Electrospray Ionization
Time Factors
Chemical
Reg. No./Substance:
0/Ethers; 0/Fatty Acids, Monounsaturated; 0/Fatty Acids, Unsaturated; 0/Galactolipids; 0/Lipid Peroxides; 0/Lipids; 0/Membrane Lipids; 0/Phospholipids; 52591-16-9/colnelenic acid; 52761-34-9/colneleic acid; EC 1.13.11.12/Lipoxygenase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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