Atribución-NoComercial 4.0 InternacionalÁvila Méndez, KellyRomero, Hernán Mauricio2019-07-032019-07-032017-05-01ISSN: 2248-7026https://repositorio.unal.edu.co/handle/unal/65992Pathogens 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.application/pdfspaDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/63 Agricultura y tecnologías relacionadas / AgricultureArtículo de revistahttp://bdigital.unal.edu.co/67015/info:eu-repo/semantics/openAccessHost resistanceNon-host resistanceZig-zag modelPTIETIETS