Document Detail

Transient increase of phosphatidylcholine in plant cells in response to phosphate deprivation.
MedLine Citation:
PMID:  12782291     Owner:  NLM     Status:  MEDLINE    
In plants, phosphate deprivation is normally known to decrease the phospholipid content consistent with a mobilization of the phosphate reserve, and conversely to increase non-phosphorous membrane lipids such as digalactosyldiacylglycerol. We report here that unexpectedly, at an early stage of phosphate starvation, phosphatidylcholine (PC) increases transiently. We also show that a significant pool of diacylglycerol (DAG) with the same fatty acid composition as that of PC is present and moreover increases in response to phosphate deprivation. The evolution of the molecular profile of the newly synthesized galactolipids is compatible with a utilization of DAG accumulating from PC hydrolysis, achieved after selection of their acyl molecular species by the galactolipid synthesizing enzymes.
Juliette Jouhet; Eric Maréchal; Richard Bligny; Jacques Joyard; Maryse A Block
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  FEBS letters     Volume:  544     ISSN:  0014-5793     ISO Abbreviation:  FEBS Lett.     Publication Date:  2003 Jun 
Date Detail:
Created Date:  2003-06-03     Completed Date:  2003-07-07     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0155157     Medline TA:  FEBS Lett     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  63-8     Citation Subset:  IM    
Laboratoire de Physiologie Cellulaire Végétale, UMR 5019 (CNRS/CEA/Université Joseph Fourier), DRDC/PCV, CEA-Grenoble, 17 rue des Martyrs, France.
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MeSH Terms
Chloroplasts / metabolism
Chromatography, Gas
Chromatography, Thin Layer
Diglycerides / metabolism
Fatty Acids / metabolism
Lipid Metabolism
Magnetic Resonance Spectroscopy
Phosphates / metabolism*
Phosphatidylcholines / metabolism*
Plant Physiological Phenomena
Plants / metabolism*
Time Factors
Reg. No./Substance:
0/Diglycerides; 0/Fatty Acids; 0/Phosphates; 0/Phosphatidylcholines

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

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