EFD Is an ERF Transcription Factor Involved in the Control of Nodule Number and Differentiation inMedicago truncatula
| Autor: | Françoise de Billy, Andreas Niebel, Tatiana Vernié, Christian Rogers, Florian Frugier, Giles E. D. Oldroyd, Julie Plet, Jean-Philippe Combier, Pascal Gamas, Sandra Moreau |
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| Přispěvatelé: | Laboratoire des interactions plantes micro-organismes ( LIPMO ), Institut National de la Recherche Agronomique ( INRA ) -Centre National de la Recherche Scientifique ( CNRS ), Ecologie microbienne ( EM ), Centre National de la Recherche Scientifique ( CNRS ) -Ecole Nationale Vétérinaire de Lyon ( ENVL ) -Université Claude Bernard Lyon 1 ( UCBL ), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique ( INRA ) -VetAgro Sup ( VAS ), Institut des sciences du végétal ( ISV ), Centre National de la Recherche Scientifique ( CNRS ), Laboratoire des interactions plantes micro-organismes (LIPM), Institut National de la Recherche Agronomique (INRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Ecologie Microbienne - UMR 5557 (LEM), Institut National de la Recherche Agronomique (INRA)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Ecole Nationale Vétérinaire de Lyon (ENVL), Institut des sciences du végétal (ISV), Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Vétérinaire de Lyon (ENVL)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS) |
| Rok vydání: | 2008 |
| Předmět: |
MESH: Signal Transduction
0106 biological sciences [ SDV.BV ] Life Sciences [q-bio]/Vegetal Biology Cytokinins MESH : Molecular Sequence Data MESH : Transcription Factors MESH: Feedback Physiological Regulator MESH : Gene Deletion Plant Science Plant Root Nodulation 01 natural sciences Nod factor chemistry.chemical_compound MESH : Nitrogen Fixation MESH: Phylogeny MESH: Medicago truncatula Research Articles Phylogeny Plant Proteins Regulator gene Feedback Physiological MESH : Cell Nucleus 0303 health sciences MESH: Plant Proteins food and beverages MESH: Transcription Factors MESH : Feedback Physiological MESH : Cytokinins Medicago truncatula Cell biology MESH: Root Nodules Plant Multigene Family Cytokinin RNA Interference MESH: Cytokinins Root Nodules Plant MESH: Plant Root Nodulation Signal Transduction MESH: Cell Nucleus MESH: Ethylenes Molecular Sequence Data MESH: RNA Interference MESH : Multigene Family Biology MESH: Nitrogen Fixation MESH: Gene Expression Profiling MESH : Root Nodules Plant 03 medical and health sciences Nitrogen Fixation MESH : Plant Proteins Botany [SDV.BV]Life Sciences [q-bio]/Vegetal Biology Transcription factor 030304 developmental biology Cell Nucleus MESH : Signal Transduction MESH: Molecular Sequence Data Gene Expression Profiling MESH : Gene Expression Profiling MESH : Medicago truncatula fungi MESH : Phylogeny MESH : Sinorhizobium meliloti Cell Biology Ethylenes Meristem biology.organism_classification Response regulator chemistry MESH: Gene Deletion MESH: Multigene Family MESH : RNA Interference MESH: Sinorhizobium meliloti MESH : Plant Root Nodulation Gene Deletion MESH : Ethylenes Sinorhizobium meliloti Transcription Factors 010606 plant biology & botany |
| Zdroj: | Plant Cell Plant Cell, American Society of Plant Biologists, 2008, 20 (10), pp.2696-713. 〈10.1105/tpc.108.059857〉 The Plant cell The Plant cell, American Society of Plant Biologists (ASPB), 2008, 20 (10), pp.2696-713. ⟨10.1105/tpc.108.059857⟩ Plant Cell, American Society of Plant Biologists, 2008, 20 (10), pp.2696-713. ⟨10.1105/tpc.108.059857⟩ |
| ISSN: | 1532-298X 1040-4651 |
| DOI: | 10.1105/tpc.108.059857 |
| Popis: | Mechanisms regulating legume root nodule development are still poorly understood, and very few regulatory genes have been cloned and characterized. Here, we describe EFD (for ethylene response factor required for nodule differentiation), a gene that is upregulated during nodulation in Medicago truncatula. The EFD transcription factor belongs to the ethylene response factor (ERF) group V, which contains ERN1, 2, and 3, three ERFs involved in Nod factor signaling. The role of EFD in the regulation of nodulation was examined through the characterization of a null deletion mutant (efd-1), RNA interference, and overexpression studies. These studies revealed that EFD is a negative regulator of root nodulation and infection by Rhizobium and that EFD is required for the formation of functional nitrogen-fixing nodules. EFD appears to be involved in the plant and bacteroid differentiation processes taking place beneath the nodule meristem. We also showed that EFD activated Mt RR4, a cytokinin primary response gene that encodes a type-A response regulator. We propose that EFD induction of Mt RR4 leads to the inhibition of cytokinin signaling, with two consequences: the suppression of new nodule initiation and the activation of differentiation as cells leave the nodule meristem. Our work thus reveals a key regulator linking early and late stages of nodulation and suggests that the regulation of the cytokinin pathway is important both for nodule initiation and development. |
| Databáze: | OpenAIRE |
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