Observatorio de I+D+i UPM

Memorias de investigación
MtNramp1 mediates iron import in rhizobia-infected Medicago truncatula cells
Research Areas
  • Molecular, cellular and genetic biology
Symbiotic nitrogen fixation is a process that requires relatively high quantities of iron provided by the host legume. Using synchrotron-based X-ray fluorescence, we have determined that this iron is released from the vasculature into the apoplast of zone II of M. truncatula nodules. This overlaps with the distribution of MtNramp1, a plasma membrane iron importer. The importance of MtNramp1 in iron transport for nitrogen fixation is indicated by the 60% reduction of nitrogenase activity observed in knock-down lines, most likely due to deficient incorporation of this essential metal cofactor at the necessary levels.
Entity Nationality
Sin nacionalidad
Sevilla, España
  • Autor: Benjamín Rodríguez-Haas (UPM)
  • Autor: Lydia Finney (Argonne National Laboratory)
  • Autor: Igor Kryvoruchko (Noble Foundation)
  • Autor: Pablo Gonzalez-Melendi De Leon (UPM)
  • Autor: Michael Udvardi (Noble Foundation)
  • Autor: Juan Imperial Ródenas (UPM)
  • Autor: Manuel Gonzalez Guerrero (UPM)
Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
  • Departamento: Biotecnología
S2i 2020 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)