Activation of plant defense responses with emphasis on barley powdery mildew [Oligoglucoside elicitors, fungal elicitors, bacterial elicitors, Conidia, review, including 2 manuscripts]

arn mensajero arn messager disease resistance enfermedades de las plantas erysiphe graminis esporas fitoalexina gene gene expression genes hordeum vulgare induced resistance maladie des plantes messenger rna methode methods peroxidases phytoalexine phytoalexins plant diseases plant response powdery mildews proteine proteins resistencia a la enfermedad resistencia inducida respuesta de la planta spore spores