Acute metal stress in Populus tremula×P. alba (717‐1B4 genotype): Leaf and cambial proteome changes induced by cadmium2+
Identifieur interne : 000056 ( Main/Exploration ); précédent : 000055; suivant : 000057Acute metal stress in Populus tremula×P. alba (717‐1B4 genotype): Leaf and cambial proteome changes induced by cadmium2+
Auteurs : Thomas C. Durand [Luxembourg (pays), France] ; Kjell Sergeant [Luxembourg (pays)] ; Sébastien Planchon [Luxembourg (pays)] ; Sabine Carpin [France] ; Philippe Label [France] ; Domenico Morabito [France] ; Jean‐François Hausman [Luxembourg (pays)] ; Jenny Renaut [Luxembourg (pays)]Source :
- PROTEOMICS [ 1615-9853 ] ; 2010-02.
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- topic : Cadmium.
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Abstract
The comprehension of metal homeostasis in plants requires the identification of molecular markers linked to stress tolerance. Proteomic changes in leaves and cambial zone of Populus tremula×P. alba (717‐1B4 genotype) were analyzed after 61 days of exposure to cadmium (Cd) 360 mg/kg soil dry weight in pot‐soil cultures. The treatment led to an acute Cd stress with a reduction of growth and photosynthesis. Cd stress induced changes in the display of 120 spots for leaf tissue and 153 spots for the cambial zone. It involved a reduced photosynthesis, resulting in a profound reorganisation of carbon and carbohydrate metabolisms in both tissues. Cambial cells underwent stress from the Cd actually present inside the tissue but also a deprivation of photosynthates caused by leaf stress. An important tissue specificity of the response was observed, according to the differences in cell structures and functions.
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DOI: 10.1002/pmic.200900484
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Proteomic changes in leaves and cambial zone of Populus tremula×P. alba (717‐1B4 genotype) were analyzed after 61 days of exposure to cadmium (Cd) 360 mg/kg soil dry weight in pot‐soil cultures. The treatment led to an acute Cd stress with a reduction of growth and photosynthesis. Cd stress induced changes in the display of 120 spots for leaf tissue and 153 spots for the cambial zone. It involved a reduced photosynthesis, resulting in a profound reorganisation of carbon and carbohydrate metabolisms in both tissues. Cambial cells underwent stress from the Cd actually present inside the tissue but also a deprivation of photosynthates caused by leaf stress. An important tissue specificity of the response was observed, according to the differences in cell structures and functions.</div></front></TEI><affiliations><list><country><li>France</li><li>Luxembourg (pays)</li></country><region><li>Centre-Val de Loire</li><li>Région Centre</li></region><settlement><li>Orléans</li></settlement><orgName><li>Université d'Orléans</li></orgName></list><tree><country name="Luxembourg (pays)"><noRegion><name sortKey="Durand, Thomas C" sort="Durand, Thomas C" uniqKey="Durand T" first="Thomas C." last="Durand">Thomas C. Durand</name></noRegion><name sortKey="Hausman, Jean Rancois" sort="Hausman, Jean Rancois" uniqKey="Hausman J" first="Jean‐François" last="Hausman">Jean‐François Hausman</name><name sortKey="Planchon, Sebastien" sort="Planchon, Sebastien" uniqKey="Planchon S" first="Sébastien" last="Planchon">Sébastien Planchon</name><name sortKey="Renaut, Jenny" sort="Renaut, Jenny" uniqKey="Renaut J" first="Jenny" last="Renaut">Jenny Renaut</name><name sortKey="Sergeant, Kjell" sort="Sergeant, Kjell" uniqKey="Sergeant K" first="Kjell" last="Sergeant">Kjell Sergeant</name></country><country name="France"><region name="Centre-Val de Loire"><name sortKey="Durand, Thomas C" sort="Durand, Thomas C" uniqKey="Durand T" first="Thomas C." last="Durand">Thomas C. 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Durand</name><name sortKey="Label, Philippe" sort="Label, Philippe" uniqKey="Label P" first="Philippe" last="Label">Philippe Label</name><name sortKey="Morabito, Domenico" sort="Morabito, Domenico" uniqKey="Morabito D" first="Domenico" last="Morabito">Domenico Morabito</name><name sortKey="Morabito, Domenico" sort="Morabito, Domenico" uniqKey="Morabito D" first="Domenico" last="Morabito">Domenico Morabito</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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