| Unsuitable availability of nutrients in germinating bean embryos exposed to copper excess. | |
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MedLine Citation:
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PMID: 19727572 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The influence of copper excess on germination rate, growth, minerals, carbohydrates, and amino acids supply in embryonic axis of bean seed was investigated. Compared to the control, Cu treatment caused a reduction in germination percent, embryo length, and accumulation of Ca, Fe, K, Mn, Zn, total soluble sugars, glucose, fructose, sucrose, and amino acids. Moreover, the nutrient concentrations, as well as the electrical conductivity were determined in the germination medium to quantify the extent of solute leakage. Such nutrients were lost in the imbibition medium at the expense of suitable mobilization to the growing embryonic axis. This was associated with an enhancement in accumulation of malondialdehyde, major product of lipoperoxidation process which can be due to the stimulation in lipoxygenase activity in Cu-poisoned tissues. |
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Authors:
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Amira Sfaxi-Bousbih; Abdelilah Chaoui; Ezzeddine El Ferjani |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-09-02 |
Journal Detail:
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Title: Biological trace element research Volume: 135 ISSN: 1559-0720 ISO Abbreviation: Biol Trace Elem Res Publication Date: 2010 Jun |
Date Detail:
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Created Date: 2010-05-03 Completed Date: 2010-08-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7911509 Medline TA: Biol Trace Elem Res Country: United States |
Other Details:
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Languages: eng Pagination: 295-303 Citation Subset: IM |
Affiliation:
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Bio-Physiologie Cellulaires, Département des Sciences de la Vie, Faculté des Sciences de Bizerte, 7021 Zarzouna, Tunisia. sfaxiamira@yahoo.fr |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Copper
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administration & dosage,
adverse effects* Culture Media Germination / drug effects*, physiology Lipoxygenase / metabolism Malondialdehyde / metabolism Phaseolus / drug effects, embryology* |
| Chemical | |
Reg. No./Substance:
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0/Culture Media; 542-78-9/Malondialdehyde; 7440-50-8/Copper; EC 1.13.11.12/Lipoxygenase |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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