Effects on grape amino acid concentration through foliar application of three different elicitors

Elicitors play an important role in the defense against pathogens as an alternative to chemical pesticides by increasing secondary metabolites. Their effect on grape amino acid has been little investigated. Thus, the aim of this research was to study the influence of methyl jasmonate (MeJ), chitosan...

Full description

Saved in:
Bibliographic Details
Published in:Food research international 2017-09, Vol.99 (Pt 1), p.688-692
Main Authors: Gutiérrez-Gamboa, G., Portu, J., Santamaría, P., López, R., Garde-Cerdán, T.
Format: Article
Language:English
Subjects:
Acetates - metabolism
Amino Acids - analysis
Amino Acids - drug effects
Amino Acids - metabolism
Chitosan
Chitosan - metabolism
Chromatography, High Pressure Liquid
Cyclopentanes - metabolism
Grapevines
Methyl jasmonate
Nitrogen
Oxylipins - metabolism
Vitis - chemistry
Yeast extract
Yeasts - metabolism
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Elicitors play an important role in the defense against pathogens as an alternative to chemical pesticides by increasing secondary metabolites. Their effect on grape amino acid has been little investigated. Thus, the aim of this research was to study the influence of methyl jasmonate (MeJ), chitosan (CHT), and a yeast extract (YE) on grape amino acid composition, through foliar applications to grapevines. The must amino acid concentration was analyzed by HPLC. The results showed that CHT and YE treatments decreased the must concentration of several amino acids, affecting total amino acid content (from 2364 to 1961, and 1818mg/L, respectively). However, MeJ treatment had a slight effect on grape amino acid content, increasing the concentration of Met (from 8.95 to 12.13mg/L) and Phe (from 7.96 to 9.29mg/L). It seems to be that, the resistance induction through CHT and YE treatments results in physiological costs to grapevines associated with a decrease on grape amino acid concentration. Consequently, MeJ applications, as a viticultural practice, could be a better tool than CHT and YE treatments, because did not affect grape amino acid concentration. [Display omitted] •First study of the effect of three elicitors application on grape amino acid content•The treatments, except methyl jasmonate (MeJ), decreased must amino acid content.•MeJ treatment increased the grape content of Met and Phe.•Resistance induction by the elicitors, except MeJ, results in physiological costs.
ISSN:0963-9969
1873-7145
DOI:10.1016/j.foodres.2017.06.022