Large-scale identification of gibberellin-related transcription factor defines group VII ERFs as functional of DELLA partners

Nora Marín, Rosa de la; Sotillo, Berta; Miskolczi, Pal; Gibbs, Daniel J.; Vicente, Jorge; Carbonero Zalduegui, Pilar; Oñate Sanchez, Luis; Holdsworth, Michael J.; Bhalerao, Rishikesh; Alabadí, David y Blázquez, Miguel A. (2014). Large-scale identification of gibberellin-related transcription factor defines group VII ERFs as functional of DELLA partners. "Plant Physiology", v. 166 (n. 2); pp. 1022-1032. ISSN 0032-0889. https://doi.org/10.1104/pp.114.244723.

Descripción

Título: Large-scale identification of gibberellin-related transcription factor defines group VII ERFs as functional of DELLA partners
Autor/es:
  • Nora Marín, Rosa de la
  • Sotillo, Berta
  • Miskolczi, Pal
  • Gibbs, Daniel J.
  • Vicente, Jorge
  • Carbonero Zalduegui, Pilar
  • Oñate Sanchez, Luis
  • Holdsworth, Michael J.
  • Bhalerao, Rishikesh
  • Alabadí, David
  • Blázquez, Miguel A.
Tipo de Documento: Artículo
Título de Revista/Publicación: Plant Physiology
Fecha: Octubre 2014
Volumen: 166
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Biotecnología - Biología Vegetal
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

DELLA proteins are the master negative regulators in gibberellin (GA) signaling acting in the nucleus as transcriptional regulators. The current view of DELLA action indicates that their activity relies on the physical interaction with transcription factors (TFs). Therefore, the identification of TFs through which DELLAs regulate GA responses is key to understanding these responses from a mechanistic point of view. Here, we have determined the TF interactome of the Arabidopsis (Arabidopsis thaliana) DELLA protein GIBBERELLIN INSENSITIVE and screened a collection of conditional TF overexpressors in search of those that alter GA sensitivity. As a result, we have found RELATED TO APETALA2.3, an ethylene-induced TF belonging to the group VII ETHYLENE RESPONSE FACTOR of the APETALA2/ethylene responsive element binding protein superfamily, as a DELLA interactor with physiological relevance in the context of apical hook development. The combination of transactivation assays and chromatin immunoprecipitation indicates that the interaction with GIBBERELLIN INSENSITIVE impairs the activity of RELATED TO APETALA2.3 on the target promoters. This mechanism represents a unique node in the cross regulation between the GA and ethylene signaling pathways controlling differential growth during apical hook development.

Más información

ID de Registro: 35980
Identificador DC: http://oa.upm.es/35980/
Identificador OAI: oai:oa.upm.es:35980
Identificador DOI: 10.1104/pp.114.244723
URL Oficial: http://www.plantphysiology.org/content/166/2/1022.abstract
Depositado por: Memoria Investigacion
Depositado el: 26 Jun 2015 15:24
Ultima Modificación: 26 Jun 2015 15:24
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