| Transient increase of phosphatidylcholine in plant cells in response to phosphate deprivation. | |
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MedLine Citation:
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PMID: 12782291 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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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. |
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Authors:
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Juliette Jouhet; Eric Maréchal; Richard Bligny; Jacques Joyard; Maryse A Block |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: FEBS letters Volume: 544 ISSN: 0014-5793 ISO Abbreviation: FEBS Lett. Publication Date: 2003 Jun |
Date Detail:
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Created Date: 2003-06-03 Completed Date: 2003-07-07 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0155157 Medline TA: FEBS Lett Country: Netherlands |
Other Details:
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Languages: eng Pagination: 63-8 Citation Subset: IM |
Affiliation:
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Laboratoire de Physiologie Cellulaire Végétale, UMR 5019 (CNRS/CEA/Université Joseph Fourier), DRDC/PCV, CEA-Grenoble, 17 rue des Martyrs, France. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Chloroplasts
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metabolism Chromatography, Gas Chromatography, Thin Layer Diglycerides / metabolism Fatty Acids / metabolism Hydrolysis Lipid Metabolism Magnetic Resonance Spectroscopy Phosphates / metabolism* Phosphatidylcholines / metabolism* Plant Physiological Phenomena Plants / metabolism* Time Factors |
| Chemical | |
Reg. No./Substance:
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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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