Article (Scientific journals)
Proteomic changes in leaves of poplar exposed to both cadmium and low-temperature
Sergeant, Kjell; Kieffer, Pol; Dommes, Jacques et al.
2014In Environmental and Experimental Botany, 106, p. 112-123
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Keywords :
cold stress; cadmium; proteomics
Abstract :
[en] During its life span a plant has to cope with numerous and diverse constraints, which, contrary to most laboratory-trials, generally don’t come one by one. Plants therefore have evolved a general adaptation syndrome, a set of molecular responses activated when exposed to various stresses. Apart from these general stress-responsive events, specific constraints result in the activation of specific responses. A major determinant in the global distribution of plant species is cold. The second constraint used in this study, cadmium exposure, is more of local importance. A poplar clone (Populus tremula L.) was exposed to cold, Cd and their combination and the proteome-level effects were determined. Changes in protein abundance were qualified as being either cold, Cd or general stress responsive. All treatments significantly affected plant growth but cold, singly and in combination, resulted in a complete growth arrest and effects on the Fv/Fm ratio. Proteins involved in the methionine pathway to activated methyl groups are specifically cold-responsive, as most of the heat shock proteins and proteins with known membrane-stabilizing properties. Proteins involved in mitochondrial protein import and maturation and proteins involved in nitrogen metabolism are among the specifically Cd-responsive proteins.
Disciplines :
Phytobiology (plant sciences, forestry, mycology...)
Author, co-author :
Sergeant, Kjell;  Centre de Recherche Public Gabriel Lippmann, 41,rue du Brill, L-4422 Belvaux, Luxembourg > Department Environment and Agro-biotechnologies
Kieffer, Pol;  Centre de Recherche Public Gabriel Lippmann, 41, rue du Brill, L-4422 Belvaux, Luxembourg > Department Environment and Agro-biotechnologies
Dommes, Jacques ;  Université de Liège > Département des sciences de la vie > Biologie moléculaire et biotechnologie végétales
Hausman, Jean-François;  Centre de Recherche Public Gabriel Lippman, 41, rue du Brill, L-4422 Belvaux, Luxembourg > Department Environment and Agro-biotechnologies
Renaut, Jenny;  Centre de Recherche Public Gabriel Lippmann, 41, rue du Brill, L-4422 Belvaux, Luxembourg > Department Environment and Agro-biotechnologies
Language :
English
Title :
Proteomic changes in leaves of poplar exposed to both cadmium and low-temperature
Publication date :
2014
Journal title :
Environmental and Experimental Botany
ISSN :
0098-8472
eISSN :
1873-7307
Publisher :
Elsevier
Volume :
106
Pages :
112-123
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 29 June 2015

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