Proteomic and enzymatic response of poplar to cadmium stress

Pol Kieffer, Peter Schröder, Jacques Dommes, Lucien Hoffmann, Jenny Renaut, Jean François Hausman

Publikation: Beitrag in FachzeitschriftArtikelBegutachtung

121 Zitate (Scopus)

Abstract

This study highlights proteomic and enzymatic changes in roots and leaves of actively growing poplar plants upon a cadmium stress exposure. Proteomic changes in response to a short-term (14 days), as well as a longer term (56 days) treatment are observed between the different organs. In leaves, stress-related proteins, like heat shock proteins, proteinases and pathogenesis-related proteins increased in abundance. A response similar to a hypersensitive response upon plant-pathogen interaction seemed to be induced. Concerning roots it appeared that the metabolic impact of cadmium was more deleterious than in leaves. This is evidenced by the early increase in abundance of many typical stress-related proteins like heat shock proteins, or glutathione-S-transferases, while most proteins from the primary metabolism (glycolysis, tricarboxylic acid cycle, nitrogen metabolism, sulfur metabolism) were severely decreased in abundance. Additionally the impact of cadmium on the glutathione metabolism could be assessed by activity assays of several important enzymes. Cadmium treatment had an inhibitory effect on glutathione reductase and ascorbate peroxidase in leaves, but not in roots. Conversely, glutathione-S-transferase showed a higher activity (and abundance) in roots but not in leaves.

OriginalspracheEnglisch
Seiten (von - bis)379-396
Seitenumfang18
FachzeitschriftJournal of Proteomics
Jahrgang72
Ausgabenummer3
DOIs
PublikationsstatusVeröffentlicht - 13 Apr. 2009
Extern publiziertJa

Fingerprint

Untersuchen Sie die Forschungsthemen von „Proteomic and enzymatic response of poplar to cadmium stress“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren