| Characterization of markers to determine the extent and variability of leaf senescence in Arabidopsis. A metabolic profiling approach. | |
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MedLine Citation:
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PMID: 15923326 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Comparison of the extent of leaf senescence depending on the genetic background of different recombinant inbred lines (RILs) of Arabidopsis (Arabidopsis thaliana) is described. Five RILs of the Bay-0 x Shahdara population showing differential leaf senescence phenotypes (from early senescing to late senescing) were selected to determine metabolic markers to discriminate Arabidopsis lines on the basis of senescence-dependent changes in metabolism. The proportion of gamma-aminobutyric acid, leucine, isoleucine, aspartate, and glutamate correlated with (1) the age and (2) the senescence phenotype of the RILs. Differences were observed in the glycine/serine ratio even before any senescence symptoms could be detected in the rosettes. This could be used as predictive indicator for plant senescence behavior. Surprisingly, late-senescing lines appeared to mobilize glutamine, asparagine, and sulfate more efficiently than early-senescing lines. The physiological basis of the relationship between leaf senescence and flowering time was analyzed. |
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Authors:
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Céline Diaz; Sarah Purdy; Aurélie Christ; Jean-Francois Morot-Gaudry; Astrid Wingler; Céline Masclaux-Daubresse |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2005-05-27 |
Journal Detail:
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Title: Plant physiology Volume: 138 ISSN: 0032-0889 ISO Abbreviation: Plant Physiol. Publication Date: 2005 Jun |
Date Detail:
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Created Date: 2005-06-15 Completed Date: 2005-10-17 Revised Date: 2010-09-20 |
Medline Journal Info:
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Nlm Unique ID: 0401224 Medline TA: Plant Physiol Country: United States |
Other Details:
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Languages: eng Pagination: 898-908 Citation Subset: IM |
Affiliation:
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Unité de Nutrition Azotée des Plantes, Institut National de la Recherche Agronomique, 78 026 Versailles cedex, France. |
| Data Bank Information | |
Bank Name/Acc. No.:
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GENBANK/U37336 |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids
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metabolism Arabidopsis / metabolism, physiology* Biological Markers / metabolism Carbon / metabolism Chlorophyll / metabolism Crosses, Genetic Gene Expression Profiling* Molecular Sequence Data Nitrogen / metabolism Phenotype Plant Leaves / metabolism, physiology* |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Biological Markers; 1406-65-1/Chlorophyll; 7440-44-0/Carbon; 7727-37-9/Nitrogen |
| Comments/Corrections | |
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