Phenolics and the activities of phenylalanine ammonia-lyase, phenol-glucosyltransferase and B-glucosidase in cucumber roots as affected by phenolic allelochemicals

acide cinnamique acide coumarique acido benzoico acido ferulico alelopatia allelopathie allelopathy allomone allomones alomonas amonio fenilalanina liasa auxinas auxine auxins benzoic acid beta glucosidasa beta glucosidase cinnamic acids coumaric acids crecimiento croissance cucumis sativus enzymic activity estres experimentation ferulic acid growth growth inhibitors inhibidores del crecimiento inhibiteur de croissance inhibition largura length longueur methode methods peso phenolic acids phenolic compounds phenylalanine ammonia lyase plantule poids racine roots seedlings stress weight