Quantitative changes in protein expression of cadmium-exposed poplar plants.
Identifieur interne : 003856 ( Main/Corpus ); précédent : 003855; suivant : 003857Quantitative changes in protein expression of cadmium-exposed poplar plants.
Auteurs : Pol Kieffer ; Jacques Dommes ; Lucien Hoffmann ; Jean-François Hausman ; Jenny RenautSource :
- Proteomics [ 1615-9861 ] ; 2008.
English descriptors
- KwdEn :
- Cadmium (metabolism), Cadmium (pharmacology), Carbon (metabolism), Gene Expression Regulation (drug effects), Hydroponics (MeSH), Oxidative Stress (drug effects), Plant Leaves (chemistry), Plant Leaves (drug effects), Plant Leaves (growth & development), Plant Leaves (metabolism), Plant Stems (chemistry), Plant Stems (drug effects), Plant Stems (growth & development), Plant Stems (metabolism), Populus (anatomy & histology), Populus (drug effects), Populus (growth & development), Populus (metabolism), Proteins (genetics), Proteins (metabolism), Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization (MeSH), Time Factors (MeSH), Tissue Distribution (MeSH).
- MESH :
- chemical , genetics : Proteins.
- chemical , metabolism : Cadmium, Carbon, Proteins.
- chemical , pharmacology : Cadmium.
- anatomy & histology : Populus.
- chemistry : Plant Leaves, Plant Stems.
- drug effects : Gene Expression Regulation, Oxidative Stress, Plant Leaves, Plant Stems, Populus.
- growth & development : Plant Leaves, Plant Stems, Populus.
- metabolism : Plant Leaves, Plant Stems, Populus.
- Hydroponics, Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization, Time Factors, Tissue Distribution.
Abstract
Cadmium (Cd) pollution is a worldwide major concern having, among others, deleterious effects on plants. In the present work, the effects of a 20 microM Cd exposure in hydroponics culture during 14 days were evaluated in young poplar leaves. Proteins were analysed by 2-D DIGE, followed by MALDI-TOF-TOF identification. Additionally, growth and other physiological parameters were monitored during the experiment. Treated plants exhibited an inhibition of growth and visual symptoms appeared after 7 days. A significant accumulation of Cd in all organs was recorded by ICP-MS analysis. A number of changes in the expression of proteins with various functions were identified; in particular a decreased abundance of oxidative stress regulating proteins, whereas pathogenesis-related proteins showed a drastic increase in abundance. Furthermore, a large number of proteins involved in carbon metabolism showed a decrease in abundance, while proteins involved in remobilizing carbon from other energy sources were upregulated. In conclusion, the negative effect of Cd could be explained by a deleterious effect on protein expression from the primary carbon metabolism and from the oxidative stress response mechanism. Accumulation of Cd in stems of poplar, coupled with a low impact of Cd on physiological parameters, promotes the use of poplar trees for phytoremediation purposes.
DOI: 10.1002/pmic.200701110
PubMed: 18563750
Links to Exploration step
pubmed:18563750Le document en format XML
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<author><name sortKey="Kieffer, Pol" sort="Kieffer, Pol" uniqKey="Kieffer P" first="Pol" last="Kieffer">Pol Kieffer</name>
<affiliation><nlm:affiliation>Department Environment and Agrobiotechnologies, Centre de Recherche Public-Gabriel Lippmann, Belvaux, Luxembourg.</nlm:affiliation>
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<author><name sortKey="Dommes, Jacques" sort="Dommes, Jacques" uniqKey="Dommes J" first="Jacques" last="Dommes">Jacques Dommes</name>
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<author><name sortKey="Hoffmann, Lucien" sort="Hoffmann, Lucien" uniqKey="Hoffmann L" first="Lucien" last="Hoffmann">Lucien Hoffmann</name>
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<author><name sortKey="Hausman, Jean Francois" sort="Hausman, Jean Francois" uniqKey="Hausman J" first="Jean-François" last="Hausman">Jean-François Hausman</name>
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<author><name sortKey="Renaut, Jenny" sort="Renaut, Jenny" uniqKey="Renaut J" first="Jenny" last="Renaut">Jenny Renaut</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cadmium (metabolism)</term>
<term>Cadmium (pharmacology)</term>
<term>Carbon (metabolism)</term>
<term>Gene Expression Regulation (drug effects)</term>
<term>Hydroponics (MeSH)</term>
<term>Oxidative Stress (drug effects)</term>
<term>Plant Leaves (chemistry)</term>
<term>Plant Leaves (drug effects)</term>
<term>Plant Leaves (growth & development)</term>
<term>Plant Leaves (metabolism)</term>
<term>Plant Stems (chemistry)</term>
<term>Plant Stems (drug effects)</term>
<term>Plant Stems (growth & development)</term>
<term>Plant Stems (metabolism)</term>
<term>Populus (anatomy & histology)</term>
<term>Populus (drug effects)</term>
<term>Populus (growth & development)</term>
<term>Populus (metabolism)</term>
<term>Proteins (genetics)</term>
<term>Proteins (metabolism)</term>
<term>Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization (MeSH)</term>
<term>Time Factors (MeSH)</term>
<term>Tissue Distribution (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="genetics" xml:lang="en"><term>Proteins</term>
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<keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Cadmium</term>
<term>Carbon</term>
<term>Proteins</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="pharmacology" xml:lang="en"><term>Cadmium</term>
</keywords>
<keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Plant Leaves</term>
<term>Plant Stems</term>
</keywords>
<keywords scheme="MESH" qualifier="drug effects" xml:lang="en"><term>Gene Expression Regulation</term>
<term>Oxidative Stress</term>
<term>Plant Leaves</term>
<term>Plant Stems</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="growth & development" xml:lang="en"><term>Plant Leaves</term>
<term>Plant Stems</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Plant Leaves</term>
<term>Plant Stems</term>
<term>Populus</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Hydroponics</term>
<term>Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization</term>
<term>Time Factors</term>
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<front><div type="abstract" xml:lang="en">Cadmium (Cd) pollution is a worldwide major concern having, among others, deleterious effects on plants. In the present work, the effects of a 20 microM Cd exposure in hydroponics culture during 14 days were evaluated in young poplar leaves. Proteins were analysed by 2-D DIGE, followed by MALDI-TOF-TOF identification. Additionally, growth and other physiological parameters were monitored during the experiment. Treated plants exhibited an inhibition of growth and visual symptoms appeared after 7 days. A significant accumulation of Cd in all organs was recorded by ICP-MS analysis. A number of changes in the expression of proteins with various functions were identified; in particular a decreased abundance of oxidative stress regulating proteins, whereas pathogenesis-related proteins showed a drastic increase in abundance. Furthermore, a large number of proteins involved in carbon metabolism showed a decrease in abundance, while proteins involved in remobilizing carbon from other energy sources were upregulated. In conclusion, the negative effect of Cd could be explained by a deleterious effect on protein expression from the primary carbon metabolism and from the oxidative stress response mechanism. Accumulation of Cd in stems of poplar, coupled with a low impact of Cd on physiological parameters, promotes the use of poplar trees for phytoremediation purposes.</div>
</front>
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<Abstract><AbstractText>Cadmium (Cd) pollution is a worldwide major concern having, among others, deleterious effects on plants. In the present work, the effects of a 20 microM Cd exposure in hydroponics culture during 14 days were evaluated in young poplar leaves. Proteins were analysed by 2-D DIGE, followed by MALDI-TOF-TOF identification. Additionally, growth and other physiological parameters were monitored during the experiment. Treated plants exhibited an inhibition of growth and visual symptoms appeared after 7 days. A significant accumulation of Cd in all organs was recorded by ICP-MS analysis. A number of changes in the expression of proteins with various functions were identified; in particular a decreased abundance of oxidative stress regulating proteins, whereas pathogenesis-related proteins showed a drastic increase in abundance. Furthermore, a large number of proteins involved in carbon metabolism showed a decrease in abundance, while proteins involved in remobilizing carbon from other energy sources were upregulated. In conclusion, the negative effect of Cd could be explained by a deleterious effect on protein expression from the primary carbon metabolism and from the oxidative stress response mechanism. Accumulation of Cd in stems of poplar, coupled with a low impact of Cd on physiological parameters, promotes the use of poplar trees for phytoremediation purposes.</AbstractText>
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