Diversity of nickel ligands in nodule cytosol, nickel transport, and expression of a nickel-dependent enzyme in endosymbiotic bacteria as affected by the legume host

Brito Lopez, Maria Belen; Cacho, C. del; Perez Novillo, C.; Camara, C.; Ruiz Argüeso, Tomas-Andres y Palacios Alberti, Jose Manuel (2010). Diversity of nickel ligands in nodule cytosol, nickel transport, and expression of a nickel-dependent enzyme in endosymbiotic bacteria as affected by the legume host. En: "XIII National Meeting of the Spanish Society of Nitrogen Fixation. II Portuguese-Spanish Congress on Nitrogen Fixation", 15/06/2011 - 18/06/2011, Zaragoza, España.

Descripción

Título: Diversity of nickel ligands in nodule cytosol, nickel transport, and expression of a nickel-dependent enzyme in endosymbiotic bacteria as affected by the legume host
Autor/es:
  • Brito Lopez, Maria Belen
  • Cacho, C. del
  • Perez Novillo, C.
  • Camara, C.
  • Ruiz Argüeso, Tomas-Andres
  • Palacios Alberti, Jose Manuel
Tipo de Documento: Ponencia en Congreso o Jornada (Póster)
Título del Evento: XIII National Meeting of the Spanish Society of Nitrogen Fixation. II Portuguese-Spanish Congress on Nitrogen Fixation
Fechas del Evento: 15/06/2011 - 18/06/2011
Lugar del Evento: Zaragoza, España
Título del Libro: Biological Nitrogen Fixation and Plant-Associated Microorganisms
Fecha: 2010
Materias:
Escuela: E.T.S.I. Agrónomos (UPM) [antigua denominación]
Departamento: Biotecnologia [hasta 2014]
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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Resumen

Provision of metals to endosymbiotic bacteria represents a potential limitation for metalloenzyme synthesis inside legume nodules. Metal ions are usually bound to organic ligands in the cell cytoplasm, and the nature of such metal-ligand complexes might affect metal availability. We have observed a strong effect of the legume host on hydrogenase synthesis when the same Rhizobium leguminosarum bv. viciae strain establishes a symbiotic interaction with pea (Pisum sativum) or lentil (Lens sculenta) plants. These data, along with the different phenotypes of mutants altered in nickel (Ni) transport in these hosts, suggest a role for the chemical form of Ni on metal provision to the bacteroid. The biochemical analysis of cytosolic fractions of pea and lentil nodules has revealed the different nature and concentration of organic ligands chelating Ni in these hosts

Más información

ID de Registro: 9020
Identificador DC: http://oa.upm.es/9020/
Identificador OAI: oai:oa.upm.es:9020
Depositado por: Memoria Investigacion
Depositado el: 05 Oct 2011 08:20
Ultima Modificación: 20 Abr 2016 17:36
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