Effects of urate, a natural inhibitor of peroxynitrite-mediated toxicity, in the response of Arabidopsis thaliana to the bacterial pathogen Pseudomonas syringae

Alamillo, Josefa M. y García Olmedo, Francisco (2001). Effects of urate, a natural inhibitor of peroxynitrite-mediated toxicity, in the response of Arabidopsis thaliana to the bacterial pathogen Pseudomonas syringae. "Plant Journal", v. 25 (n. 5); pp. 529-540. ISSN 0960-7412. https://doi.org/10.1046/j.1365-313x.2001.00984.x.

Descripción

Título: Effects of urate, a natural inhibitor of peroxynitrite-mediated toxicity, in the response of Arabidopsis thaliana to the bacterial pathogen Pseudomonas syringae
Autor/es:
  • Alamillo, Josefa M.
  • García Olmedo, Francisco
Tipo de Documento: Artículo
Título de Revista/Publicación: Plant Journal
Fecha: Marzo 2001
Volumen: 25
Materias:
Palabras Clave Informales: Arabidopsis, disease-resistance, Pseudomonas, peroxynitrite, scavenger, urate.
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

Urate, a natural peroxynitrite scavenger, has been used to investígate the possible role of peroxynitrite during plant-pathogen interactions. Urate greatly reduced lesión formation in Arabidopsis leaves treated with an abiotic peroxynitrite-generating system or with a peroxynitrite solution, indicating that it can act as an effective scavenger in planta. In the interaction with the avirulent Pseudomonas syringae pv. phaseolicola [avrRPNW], cell death in the inoculated área was strongly reduced by urate, without compromising disease resistance. In contrast, urate promoted discrete cell death in response to an isogenic Pseudomonas syringae (awRPMT), which did not trigger an HR when inoculated alone, and it induced resistance and arrest of pathogen growth. Scavenging of peroxynitrite did not modify the response of Arabidopsis to an avirulent strain of Xanthomonas campestris pv campestris, that showed a high resistance to NO and peroxynitrite. Our data indícate that peroxynitrite plays a significant role in the responses of plants to Pseudomonas syring

Más información

ID de Registro: 5832
Identificador DC: http://oa.upm.es/5832/
Identificador OAI: oai:oa.upm.es:5832
Identificador DOI: 10.1046/j.1365-313x.2001.00984.x
URL Oficial: http://onlinelibrary.wiley.com/doi/10.1046/j.1365-313x.2001.00984.x/abstract
Depositado por: Memoria Investigacion
Depositado el: 01 Feb 2011 09:00
Ultima Modificación: 20 Abr 2016 14:32
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