Gain- and loss-of-function mutations inZat10enhance the tolerance of plants to abiotic stress
| Autor: | Jian-Kang Zhu, Sultan Ciftci-Yilmaz, Alicia Coutu, Yong Sig Kim, Luhua Song, Hojoung Lee, Becky Stevenson, Ron Mittler, Jesse Coutu |
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| Rok vydání: | 2006 |
| Předmět: |
0106 biological sciences
Arabidopsis thaliana Osmotic shock Stress tolerance Arabidopsis Biophysics Gene Expression Repressor Sodium Chloride Genes Plant 01 natural sciences Biochemistry Article 03 medical and health sciences Zat10 Gene Expression Regulation Plant Structural Biology Genetics Plant defense against herbivory RNA Messenger Molecular Biology 030304 developmental biology Zinc finger 0303 health sciences C2H2-zinc finger C2H2 Zinc Finger biology Arabidopsis Proteins Abiotic stress fungi Cell Biology Plants Genetically Modified biology.organism_classification Adaptation Physiological Seedlings Mutation EAR motif Abscisic Acid 010606 plant biology & botany |
| Zdroj: | FEBS Letters. 580:6537-6542 |
| ISSN: | 0014-5793 |
| DOI: | 10.1016/j.febslet.2006.11.002 |
| Popis: | C2H2-zinc finger proteins that contain the EAR repressor domain are thought to play a key role in modulating the defense response of plants to abiotic stress. Constitutive expression of the C2H2-EAR zinc finger protein Zat10 in Arabidopsis was found to elevate the expression of reactive oxygen-defense transcripts and to enhance the tolerance of plants to salinity, heat and osmotic stress. Surprisingly, knockout and RNAi mutants of Zat10 were also more tolerant to osmotic and salinity stress. Our results suggest that Zat10 plays a key role as both a positive and a negative regulator of plant defenses. |
| Databáze: | OpenAIRE |
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