Resumo

CAMARENA-GUTIERREZ, G.  e  TORRE-ALMARAZ, R. de la. SYSTEMICACQUIRED RESISTANCE IN PLANT: STATE OF ART. Rev. Chapingo ser. cienc. for. ambient [online]. 2007, vol.13, n.2, pp.157-162. ISSN 2007-4018.

Host plant can be protected against further pathogen attack if they have survived earlier infection by pathogenic viruses, bacteria or fungi. It appears that the first infecting pathogen, or some an injury, “immunizes” the plant against further infections by homologous pathogens. The first infecting pathogen “induced” expression of resistance reactions against subsequently infecting pathogens, regardless of whether they are viruses, bacteria or fungi. This response is called systemic acquired resistance. Systemic acquired resistance refers to distinct signal transduction pathway that plays an important role in the ability of plants to defend them selves against pathogen.

Palavras-chave : hypersensitive response; salicylic acid; reactive oxygen species; induced resistance.

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