Production of Defense Phenolics in Tomato Leaves of Different Age

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Authors

DADÁKOVÁ Kateřina HEINRICHOVÁ Tereza LOCHMAN Jan KAŠPAROVSKÝ Tomáš

Year of publication 2020
Type Article in Periodical
Magazine / Source Molecules
MU Faculty or unit

Faculty of Science

Citation
Web https://doi.org/10.3390/molecules25214952
Doi http://dx.doi.org/10.3390/molecules25214952
Keywords tomato; phenolics; defense compounds; bacterial infection; plant age; leaf age
Description Phenolics play an essential role in the defense reaction of crop plants against pathogens. However, the intensity of their production induced by infection may differ during the life of a plant. Here, we identified age-related differences in phenolic biosynthesis in the pathosystem Solanum lycopersicum cv. Amateur and Pseudomonas syringae pv. tomato DC3000. We analyzed concentrations of total phenolics, phenolic profiles, and concentrations of selected phenolic acids. The influence of bacterial infection, together with leaf and plant age, was assessed. The changes in concentrations of caffeic acid, 4-hydroxybenzoic acid, and salicylic acid glucoside caused by infection were found to be influenced by age. In concrete, the increases in the concentrations of these metabolites were all evident only in young plants.
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