Chitinase and peroxidase activities in sunflower hypocotyls: Effects of BTH and inoculation with Plasmopara halstedii |
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| Authors: | A. Roldán Serrano J. Luna del Castillo J. Jorrín Novo A. Fernández Ocaña M. V. Gómez Rodríguez |
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| Affiliation: | 1.Fisiología Vegetal, Facultad de Ciencias Experimentales,Universidad de Jaén,Jaén,Espa?a;2.Bioestadística, Facultad de Medicina,Universidad de Granada,Granada,Espa?a;3.Universidad de Córdoba,Córdoba,Espa?a |
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| Abstract: | Systemic acquired resistance (SAR) can be induced in plants by incompatible pathogens, pathogen derived extracts, or certain chemicals as benzothiadiazole (BTH). The aim of this work was to compare changes in peroxidase and chitinase activities, enzymes considered as PR-proteins, caused by BTH and the pathogen Plasmopara halstedii. Hypocotyls from susceptible and resistant BTH-treated sunflower seedlings showed increased peroxidase and chitinase activities. Inoculation with P. halstedii increased chitinase and peroxidase activities in inoculated hypocotyls from susceptible but not from resistant sunflower seedlings. |
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| Keywords: | Helianthus annuus plant defense mildew |
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