Jasmonic acid and nitric oxide protects naranjilla (Solanum quitoense) against infection by Fusarium oxysporum f. sp. quitoense by eliciting plant defense responses

Publication date: Available online 14 January 2019Source: Physiological and Molecular Plant PathologyAuthor(s): Ana Cristina Ávila, José Ochoa, Karina Proaño, M. Carmen MartínezAbstractNaranjilla (Solanum quitoense) is an Andean tropical fruit of the solanaceae family with high nutritional value. Its cultivation is gravely affected by the lethal disease produced by Fusarium oxysporum f.sp. quitoense, causing severe economic losses. In this work we studied the possibility of boosting the plants’ natural defenses to the fungus by using plant hormones. Our results show that spraying jasmonic acid or sodium nitroprusside (a NO donor) on naranjilla plantlets before Fusarium inoculation protected them from infection, and elicited strong activation of the corresponding signaling pathway, suggesting a mechanism of defense priming triggered by those compounds.Graphical abstractNaranjilla (Solanum quitoense) is a crop of the Amazon basin, the cultivation of which is threatened by Fusarium oxysporum. Priming natural defences is a promising strategy with low environmental costs.
Source: Physiological and Molecular Plant Pathology - Category: Molecular Biology Source Type: research