Macrowine 2021
IVES 9 IVES Conference Series 9 Macrowine 9 Macrowine 2021 9 Grapevine diversity and viticultural practices for sustainable grape growing 9 Methyljasmonate versus nanomethyljasmonate: effect on monastrell nitrogen composition

Methyljasmonate versus nanomethyljasmonate: effect on monastrell nitrogen composition

Abstract

AIM: The aim of this work was to evaluate the effect of preharvest application in Monastrell berries using two different types of applications: conventional treatments (methyl jasmonate) and nanocompounds (nanomethyl jasmonate) on Monastrell nitrogen composition in grapes and wines.

METHODS: The treatments was applied during two vintages (2019 and 2019) in a plot located in the southeast of Spain (Bullas, Murcia). Foliar applications were carried out at veraison and 7 days later. 200 mL per plant will be applied, using Tween 80 at 0.1% (v/v) in each solution. The applied treatments were the following: methyl jasmonate (MeJ) (10 mM) and the application of nanoparticles, nano-MeJ (0.67 mM). The corresponding analyses were made in grapes at harvest and in wines at the end of alcoholic fermentation. The ammonium ion (NH4 +) and the following free amino acids were analysed by HPLC: aspartic acid (Asp), glutamic acid (Glu), serine (Ser), asparagine (Asp), glutamine (gln), histidine (His), glycine (Gly) , threonine (Thr), β-Alanine (β-Ala), arginine (Arg), α-Alanine (α-Ala), γ-aminobutyric acid (GABA), proline (Pro), tyrosine (Tyr), valine (Val ), methionine (Met), cysteine (Cys), isoleucine (Iso), leucine (Leu), tryptophan (Trp), phenylalanine (Phe), ornithine (Orn) and lysine (Lys).

RESULTS: In general terms, the application of elicitors (MeJ and nano-MeJ) significantly increased the nitrogen composition of musts and wines of the Monastrell variety. Although the results obtained were influenced by the climatic differences experienced during the two years of study, so that during the first year more noticeable differences were obtained between the treatments and the control vineyards.

CONCLUSIONS

In conclusion, although the results are preliminary, the exogenous application of nano-MeJ could be an interesting alternative to be used instead of the conventional elicitor with two aims: to reduce the use of agrochemical in plants and improve nitrogen composition in grapes and wines.

DOI:

Publication date: September 2, 2021

Issue: Macrowine 2021

Type: Article

Authors

Maria José. Gimenez-Bañón

Murciano Institute Of Research And Agricultural And Food-Spain Juan Daniel Moreno-Olivares- Murciano Institute Of Research And Agricultural And Food-Spain Diego Fernando. Paladines-Quezada- Murciano Institute Of Research And Agricultural And Food-Spain Juan Antonio. Bleda-Sánchez – Murciano Institute Of Research And Agricultural And Food-Spain Jose Ignacio. Fernández-Fernández- Murciano Institute Of Research And Agricultural And Food-Spain Gloria Ramirez- Deparment Of Inorganic Chemistry, Faculty Of Science, University Of Granada (Spain) Jose Manul Delgado-López – Deparment Of Inorganic Chemistry, Faculty Of Science, University Of Granada (Spain)

Contact the author

Keywords

amino acids; yan, methyl jasmonate; nanoparticles

Citation

Related articles…

Berry carbon (δ13C) and nitrogen (δ15N) isotopic ratio reflects within farm terroir diffferences

ÂThe natural abundance of carbon stable isotopes has been reported to be related to water availability in grapevines quite widely. In the case of nitrogen, the natural abundance of its stable isotopes is mainly affected by the nature of the source of nitrogen (organic vs. inorganic) used by the plant, though the bibliography available for grapevine is very scarce.

Read More

Ozone to improve the implantation of Lachancea thermotolerans for improving pH in warm areas in wines with low SO2 levels

Una de las biotecnologías más potentes para disminuir el pH en vinos de zonas cálidas y en variedades de pH elevado es el uso de la levadura no-saccharomyces lachancea thermotolerans. Esta especie es capaz de formar ácido láctico a partir de azúcares, reduciendo al mismo tiempo ligeramente el grado alcohólico. Por lo tanto, mejora dos de los principales problemas de los vinos de regiones afectadas por el calentamiento global. El ácido láctico es un ácido orgánico con una buena integración sensorial en el sabor del vino, y también química y biológicamente estable durante el envejecimiento del vino.

Read More

Phenological stage dependency of Cabernet Sauvignon and Grenache response to water and nutrient limitation 

As the frequency and intensity of drought events increase, understanding the mechanisms of plant resilience to water deficit is crucial. To maintain an appropriate plant yield, a common practice is the application of high amounts of fertilizers with negative environmental impacts. The single and combined effect of water deficit and nutrient availability, namely nitrogen (N) and potassium (K), in Vitis Vinifera L. cv. Cabernet Sauvignon and Grenache was evaluated. Two-year-old grapevine plants grafted on SO4 rootstock were transferred in pots under semi-environmental conditions. During the growing season, plants were either maintained well-watered (100% ETc) or subjected to a controlled water deficit irrigation (33% ETc).

Read More

Evaluation of the site index model for viticultural zoning

Une variable composite, dénommée Indice de Site (SI), intégrant les propriétés physiques du sol et le mésoclimat, avait été proposée pour caractériser les terroirs dans le cadre d’une étude des vignobles de Cabernet Sauvignon de Hawke’s Bay en Nouvelle Zélande.

Read More

Application to grapevine leaves of different doses of urea at two phenology stage: effect on the aromatic composition of red wine

This research aimed to study the effect and efficiency of foliar application of urea on the aromatic composition of red wines elaborated from Tempranillo grapes.

Read More