Serveur d'exploration sur le peuplier

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Combining proteomics and metabolite analyses to unravel cadmium stress-response in poplar leaves.

Identifieur interne : 003681 ( Main/Exploration ); précédent : 003680; suivant : 003682

Combining proteomics and metabolite analyses to unravel cadmium stress-response in poplar leaves.

Auteurs : Pol Kieffer [Belgique] ; Sébastien Planchon ; Mouhssin Oufir ; Johanna Ziebel ; Jacques Dommes ; Lucien Hoffmann ; Jean-François Hausman ; Jenny Renaut

Source :

RBID : pubmed:19072159

Descripteurs français

English descriptors

Abstract

A proteomic analysis of poplar leaves exposed to cadmium, combined with biochemical analysis of pigments and carbohydrates revealed changes in primary carbon metabolism. Proteomic results suggested that photosynthesis was slightly affected. Together with a growth inhibition, photoassimilates were less needed for developmental processes and could be stored in the form of hexoses or complex sugars, acting also as osmoprotectants. Simultaneously, mitochondrial respiration was upregulated, providing energy needs of cadmium-exposed plants.

DOI: 10.1021/pr800561r
PubMed: 19072159


Affiliations:


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Le document en format XML

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<term>Amino Acid Sequence (MeSH)</term>
<term>Cadmium (toxicity)</term>
<term>Carbohydrates (chemistry)</term>
<term>Carbon (chemistry)</term>
<term>Chlorophyll (chemistry)</term>
<term>Mitochondria (metabolism)</term>
<term>Models, Biological (MeSH)</term>
<term>Molecular Sequence Data (MeSH)</term>
<term>Oxygen Consumption (MeSH)</term>
<term>Photosynthesis (drug effects)</term>
<term>Plant Leaves (drug effects)</term>
<term>Polymers (chemistry)</term>
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<term>Populus (growth & development)</term>
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<term>Cadmium (toxicité)</term>
<term>Carbone (composition chimique)</term>
<term>Chlorophylle (composition chimique)</term>
<term>Consommation d'oxygène (MeSH)</term>
<term>Données de séquences moléculaires (MeSH)</term>
<term>Feuilles de plante (effets des médicaments et des substances chimiques)</term>
<term>Glucides (composition chimique)</term>
<term>Mitochondries (métabolisme)</term>
<term>Modèles biologiques (MeSH)</term>
<term>Photosynthèse (effets des médicaments et des substances chimiques)</term>
<term>Polymères (composition chimique)</term>
<term>Populus (croissance et développement)</term>
<term>Populus (effets des médicaments et des substances chimiques)</term>
<term>Protéomique (méthodes)</term>
<term>Régulation positive (MeSH)</term>
<term>Séquence d'acides aminés (MeSH)</term>
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<term>Carbohydrates</term>
<term>Carbon</term>
<term>Chlorophyll</term>
<term>Polymers</term>
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<term>Photosynthesis</term>
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