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Revista Facultad Nacional de Agronomía Medellín
versión impresa ISSN 0304-2847
Resumen
AVILA MENDEZ, Kelly y ROMERO, Hernán Mauricio. Plant responses to pathogen attack: molecular basis of qualitative resistance. Rev. Fac. Nac. Agron. Medellín [online]. 2017, vol.70, n.2, pp.8225-8235. ISSN 0304-2847. https://doi.org/10.15446/rfna.v70n2.64526.
Pathogens attack plants to assimilate nutrients from them. All plant species have succeeded in overcoming pathogenic attack; therefore disease condition is not the rule but the exception. A co-evolutionary battle has equipped plants with sophisticated defense mechanisms and cognate pathogens with a corresponding arsenal of counter strategies to overcome them. Traditionally, plant-pathogen interaction has been associated with molecules involved in recognition processes giving rise to models such as the "zig-zag Model". However, this model is being re-evaluated because it is not consistent with the complexity of the interaction. Current models propose a holistic view of a process where the response is not always determined by the interaction of two molecules. This review discusses the main aspects related to qualitative responses in the plant-pathogen interaction and the new proposed models.
Palabras clave : Host resistance; Non-host resistance; Zig-zag model; PTI; ETI; ETS.