期刊
ELECTROPHORESIS
卷 30, 期 14, 页码 2460-2468出版社
WILEY-BLACKWELL
DOI: 10.1002/elps.200800826
关键词
Arabidopsis thaliana; Hypersensitive response; Protein nitration; Proteomics
资金
- Italian Ministry for University and Research (MIUR-PRIN 2006)
- National Blood Centre (ISS)
- EMBO Young Investigators Program
- Ministero dell'Universita e delta Ricerca
Nitric oxide and reactive oxygen species play a key role in the plant hypersensitive disease resistance response, and protein tyrosine nitration is emerging as an important mechanism of their co-operative interaction. Up to now, the proteins targeted by this post-translational modification in plants are still totally unknown. in this study, we analyzed for the first time proteins undergoing nitration during the hypersensitive response by analyzing via 1D- and 2D-western blot the protein extracts from Arabidopsis thaliana plants challenged with an avirulent bacterial pathogen (Pseudomonas syringae pv. Tomato). We show that the plant disease resistance response is correlated with a modulation of nitration of proteins involved in important cellular process, such as photosynthesis, glycolysis and nitrate assimilation. These findings shed new light on the signaling functions of nitric oxide and reactive oxygen species, paving the way on studies on the role of this post-translational modification in plants.
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