Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
The ERECTA receptor-like kinase regulates cell wall-mediated resistance to pathogens in Arabidopsis thaliana
Year:2009
Research Areas
  • Molecular biology
Information
Abstract
Some receptor-like kinases (RLK) control plant development while others regulate immunity. The Arabidopsis ERECTA (ER) RLK regulates both biological processes. To discover specific components of ER-mediated immunity, a genetic screen was conducted to identify suppressors of erecta (ser) susceptibility to Plectosphaerella cucumerina fungus. The ser1 and ser2 mutations restored disease resistance to this pathogen to wild-type levels in the er-1 background but failed to suppress er-associated developmental phenotypes. The deposition of callose upon P. cucumerina inoculation, which was impaired in the er-1 plants, was also restored to near wild-type levels in the ser er-1 mutants. Analyses of er cell walls revealed that total neutral sugars were reduced and uronic acids increased relative to those of wild-type walls. Interestingly, in the ser er-1 walls, neutral sugars were elevated and uronic acids were reduced relative to both er-1 and wild-type plants. The cell-wall changes found in er-1 and the ser er-1 mutants are unlikely to contribute to their developmental alterations. However, they may influence disease resistance, as a positive correlation was found between uronic acids content and resistance to P. cucumerina. We propose a specific function for ER in regulating cell wall¿mediated disease resistance that is distinct from its role in development.
International
Si
JCR
Si
Title
MOLECULAR PLANT-MICROBE INTERACTIONS
ISBN
0894-0282
Impact factor JCR
4,136
Impact info
Volume
8
Journal number
0
From page
953
To page
963
Month
ENERO
Ranking
Participants
  • Autor: Antonio Molina Fernandez (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Interacciones Moleculares Planta-Patógeno
  • 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)
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