Document Server@UHasselt >
Research >
Research publications >

Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/16334

Title: A physiological and proteomic study of poplar leaves during ozone exposure combined with mild drought
Authors: BOHLER, Sacha
Sergeant, Kjell
Jolivet, Yves
Hoffmann, Lucien
Hausman, Jean-Francois
Dizengremel, Pierre
Renaut, Jenny
Issue Date: 2013
Citation: PROTEOMICS, 13 (10-11), p. 1737-1754
Abstract: The occurrence of high-ozone concentrations during drought episodes is common considering that they are partially caused by the same meteorological phenomena. It was suggested that mild drought could protect plants against ozone-induced damage by causing the closure of stomata and preventing the entry of ozone into the leaves. The present experiment attempts to create an overview of the changes in cellular processes in response to ozone, mild drought and a combined treatment based on the use of 2D-DiGE to compare the involved proteins, and a number of supporting analyses. Morphological symptoms were worst in the combined treatment, indicating a severe stress, but fewer proteins were differentially abundant in the combined treatment than for ozone alone. Stomatal conductance was slightly lowered in the combined treatment. Shifts in carbon metabolism indicated that the metabolism changed to accommodate for protective measures and changes in the abundance of proteins involved in redox protection indicated the presence of an oxidative stress. This study allowed identifying a set of proteins that changed similarly during ozone and drought stress, indicative of crosstalk in the molecular response of plants exposed to these stresses. The abundance of other key proteins changed only when the plants are exposed to specific conditions. Together this indicates the coexistence of generalized and specialized responses to different conditions.
URI: http://hdl.handle.net/1942/16334
DOI: 10.1002/pmic.201200193
ISI #: 000319828700021
ISSN: 1615-9853
Category: A1
Type: Journal Contribution
Validation: ecoom, 2014
Appears in Collections: Research publications

Files in This Item:

Description SizeFormat
Main article666.76 kBAdobe PDF

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.