Silencing of poly(ADP-ribose) polymerase in plants alters abiotic stress signal transduction
| Autor: | Sandy Vanderauwera, Brigitte van de Cotte, Michael Metzlaff, Marc De Block, Nancy Van de Steene, Frank Van Breusegem |
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| Rok vydání: | 2007 |
| Předmět: |
Transcription
Genetic Poly ADP ribose polymerase Arabidopsis Models Biological chemistry.chemical_compound Gene Expression Regulation Plant Transcription (biology) Gene expression Abscisic acid Polymerase Cyclic ADP-Ribose Multidisciplinary biology Arabidopsis Proteins Abiotic stress fungi food and beverages Biological Sciences Microarray Analysis biology.organism_classification Oxidative Stress Biochemistry chemistry biology.protein RNA Interference NAD+ kinase Poly(ADP-ribose) Polymerases Genome Plant Signal Transduction |
| Zdroj: | Proceedings of the National Academy of Sciences. 104:15150-15155 |
| ISSN: | 1091-6490 0027-8424 |
| DOI: | 10.1073/pnas.0706668104 |
| Popis: | Transgenic plants with reduced poly(ADP-ribose) polymerase (PARP) levels have broad-spectrum stress-resistant phenotypes. Both Arabidopsis thaliana and oilseed rape ( Brassica napus ) lines overexpressing RNA interference-PARP constructs were more resistant to various abiotic stress treatments in laboratory and greenhouse experiments without negative effects on growth, development, and seed production. This outperforming stress tolerance was initially attributed solely to a maintained energy homeostasis due to reduced NAD + consumption. We show that in PARP2-deficient Arabidopsis plants, the observed abiotic stress resistance can also be explained by alterations in abscisic acid levels that facilitate the induction of a wide set of defense-related genes. |
| Databáze: | OpenAIRE |
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