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Memorias de investigación
Artículos en revistas:
The Pseudomonas syringae Type II Efector HopAM1 Enhances Virulence on Water-Stressed Plants.
Año:2008
Áreas de investigación
  • Biología molecular
Datos
Descripción
Pseudomonas syringae strains deliver diverse type III effector proteins into host cells, where they can act as virulence factors. Although the functions of the majority of type IIIeffectors are unknown, several have been shown to interferewith plant basal defense mechanisms. Type III effectorsalso could contribute to bacterial virulence by enhancingnutrient uptake and pathogen adaptation to the environmentof the host plant. We demonstrate that the type IIIeffector HopAM1 (formerly known as AvrPpiB) enhancesthe virulence of a weak pathogen in plants that are grownunder drought stress. This is the first report of a type IIIeffector that aids pathogen adaptation to water availabilityin the host plant. Expression of HopAM1 makes transgenicWs-0 Arabidopsis hypersensitive to abscisic acid (ABA) forstomatal closure and germination arrest. Conditional expressionof HopAM1 in Arabidopsis also suppresses basaldefenses. ABA responses overlap with defense responsesand ABA has been shown to suppress defense against P. syringaepathogens. We propose that HopAM1 aids P. syringaevirulence by manipulation of ABA responses that suppressdefense responses. In addition, host ABA responses enhancedby type III delivery of HopAM1 protect developingbacterial colonies inside leaves from osmotic stress.
Internacional
Si
JCR del ISI
Si
Título de la revista
MOLECULAR PLANT-MICROBE INTERACTIONS
ISSN
0894-0282
Factor de impacto JCR
4,275
Información de impacto
Volumen
21
DOI
Número de revista
3
Desde la página
361
Hasta la página
370
Mes
MARZO
Ranking
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Participantes
  • Participante: A.K. GOEL
  • Participante: D. LUNDBERG
  • Participante: L.L. DANGL
  • Participante: L FARMER
  • Autor: Miguel Angel Torres Lacruz (UPM)
  • Participante: Ch AKIMOTO-TOMIYAMA
  • Participante: R. MATTHEWS
  • Participante: S.R. GRANT
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Patología Vegetal
  • Departamento: Biotecnología
  • Centro o Instituto I+D+i: Centro de Biotecnología y Genómica de Plantas, CBGP
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