The receptor kinase impaires oomycète susceptibility1 attenuates abscisic acid responses in Arabidopsis
| Autor: | Elsa Ribes, Sophie Hok, Jutta Ludwig-Müller, Corina Weis, Harald Keller, Ralph Hückelhoven, Yves Marco, Elodie Naessens, Mathilde Clément, Valérie Allasia, Erwin Grill, Alexandra Ammon, Ruth Eichmann, Agnès Attard, Emilie Andrio, Nicolas Ris, Franck Panabières, Xavier Barlet, Lars M. Voll |
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| Přispěvatelé: | Institut Sophia Agrobiotech (ISA), Centre National de la Recherche Scientifique (CNRS)-Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Institut National de la Recherche Agronomique (INRA), Université de Nice Sophia-Antipolis (UNSA), Unité mixte de recherche interactions plantes-microorganismes, Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées, Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Technische Universität Munchen - Université Technique de Munich [Munich, Allemagne] (TUM), Technische Universität Dresden = Dresden University of Technology (TU Dresden), Institut National de la Recherche Agronomique (INRA)-Université Nice Sophia Antipolis (1965 - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Institut National de la Recherche Agronomique (INRA)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
0106 biological sciences
Physiology STOMATAL APERTURE [SDV]Life Sciences [q-bio] Arabidopsis Plant Science 01 natural sciences chemistry.chemical_compound Gene Expression Regulation Plant Arabidopsis thaliana TRANSCRIPTION FACTOR Abscisic acid 2. Zero hunger Oomycete Peronospora 0303 health sciences biology food and beverages Articles Plants Genetically Modified Cell biology Oomycetes Host-Pathogen Interactions [SDE]Environmental Sciences Plant hormone Signal transduction PLANT-DEFENSE POWDERY MILDEW FUNGUS Signal Transduction endocrine system PATTERN-TRIGGERED IMMUNITY SIGNAL-TRANSDUCTION Germination NECROTROPHIC PATHOGENS macromolecular substances BINDING PROTEIN UBIQUITIN-LIGASE SYRINGAE PV. TOMATO 03 medical and health sciences Botany Genetics [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Plant Diseases 030304 developmental biology Hyaloperonospora arabidopsidis Arabidopsis Proteins organic chemicals fungi biology.organism_classification chemistry Mutation Downy mildew Protein Kinases Abscisic Acid 010606 plant biology & botany |
| Zdroj: | Plant Physiology Plant Physiology, American Society of Plant Biologists, 2014, 166 (3), pp.1506-1518. ⟨10.1104/pp.114.248518⟩ Plant Physiology, 2014, 166 (3), pp.1506-1518. ⟨10.1104/pp.114.248518⟩ |
| ISSN: | 0032-0889 1532-2548 |
| DOI: | 10.1104/pp.114.248518⟩ |
| Popis: | In plants, membrane-bound receptor kinases are essential for developmental processes, immune responses to pathogens and the establishment of symbiosis. We previously identified the Arabidopsis (Arabidopsis thaliana) receptor kinase IMPAIRED OOMYCETE SUSCEPTIBILITY1 (IOS1) as required for successful infection with the downy mildew pathogen Hyaloperonospora arabidopsidis. We report here that IOS1 is also required for full susceptibility of Arabidopsis to unrelated (hemi)biotrophic filamentous oomycete and fungal pathogens. Impaired susceptibility in the absence of IOS1 appeared to be independent of plant defense mechanism. Instead, we found that ios1-1 plants were hypersensitive to the plant hormone abscisic acid (ABA), displaying enhanced ABA-mediated inhibition of seed germination, root elongation, and stomatal opening. These findings suggest that IOS1 negatively regulates ABA signaling in Arabidopsis. The expression of ABA-sensitive COLD REGULATED and RESISTANCE TO DESICCATION genes was diminished in Arabidopsis during infection. This effect on ABA signaling was alleviated in the ios1-1 mutant background. Accordingly, ABA-insensitive and ABA-hypersensitive mutants were more susceptible and resistant to oomycete infection, respectively, showing that the intensity of ABA signaling affects the outcome of downy mildew disease. Taken together, our findings suggest that filamentous (hemi)biotrophs attenuate ABA signaling in Arabidopsis during the infection process and that IOS1 participates in this pathogen-mediated reprogramming of the host. |
| Databáze: | OpenAIRE |
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