Macrowine 2021
IVES 9 IVES Conference Series 9 Macrowine 9 Macrowine 2021 9 Grapevine diversity and viticultural practices for sustainable grape growing 9 From vineyard to a glass of wine: the effect of abscisic acid application on mouhtaro, a rare autochthonous variety of greece

From vineyard to a glass of wine: the effect of abscisic acid application on mouhtaro, a rare autochthonous variety of greece

Abstract

In a context of a sustainable viticulture, a new uprising strategy to improve grape and wine composition (or quality) is the exogenous application of plant activators(Gil-Muñoz et al., 2017). This treatment stimulates the biosynthesis of secondary metabolites in grape berries (Ruiz-García et al., 2013) In an open field, the plant hormone (Abscisic Acid), was applied on a red grape variety Mouhtaro cultivated at the Muses Valley (Askri, Viotia, Greece). Treatments were in triplicates during veraison in a randomized complete block design, with 10 vines in each replicate. Vines were sprayed at veraison stage, 3 and 6 days after the first application, at 2 different concentrations and grapes were harvested at optimum sugar maturity. Targeted UPLC-MS analysis was performed since It was suggested that exogenous ABA influence specific polyphenolic compounds. Then, classic red winemaking procedure was applied. The effect of exogenous ABA application on gene expression level was also examined. Standard analytical methods recommended by O.I.V. were used for grapes and wines as well as analysis for the phenolic composition. The pH increased in wines originated from grape berries treated with higher doses. Accordingly, phenolic compounds were higher in ABA-treated grapes and respective wines Similarly, the expression of specific genes encoding for key enzymes of the phenylpropanoid pathway was upregulated. As a consequence, Abscisic Acid affected the composition and sensory analysis of the wines differently. The unique wine profiles of Mouhtaro and their different responses to biostimulant factors could be valuable for developing various types of Mouhtaro red wines with improved quality

DOI:

Publication date: September 2, 2021

Issue: Macrowine 2021

Type: Article

Authors

Kontoudakis Nikolaos1,; Aggeliki Kouki1; Zacharias Nikolaos4; Alatzas Anastasios2; Chatzopoulos Polydeykis2; Marianne Unlubayir3, Arnaud Lanoue3; Kotseridis Yorgos1

  1. Agricultural University of Athens, Department of Food Science and Human Nutrition, Agricultural University of Athens, Department of Food Science and Human Nutrition, Laboratory of Enology and Alcoholic Drinks, 75 IeraOdos, 11855 Athens, Greece
  2. Agricultural University of Athens, Department of Biotechnology, Molecular Biology Laboratory, 75 IeraOdos, 11855 Athens, Greece
  3. Université François-Rabelais de Tours, EA 2106 «Biomolécules et BiotechnologieVégétales», UFR des Sciences Pharmaceutiques, 31 Av. Monge, F37200 Tours, France
  4. Muses Estate, Askri Viotias, 32002, Greece

Contact the author

Keywords

vitis vinifera, mouhtaro, wine, gene expression, absiscic acid, grape berry, polyphenolic profile

Citation

Related articles…

IMPACT OF MANNOPROTEIN N-GLYCOSYL PHOSPHORYLATION AND BRANCHING ON WINE POLYPHENOL INTERACTIONS WITH YEAST CELL WALLS

Yeast cell walls (CWs) may adsorb wine components with a significant impact on wine quality. When dealing with red wines, this adsorption is mainly related to physicochemical interactions between wine polyphenols and cell wall mannoproteins. However, mannoproteins are a heterogeneous family of complex peptidoglycans including long and highly branched N-linked oligosaccharides and short linear O-linked oligosaccharides, resulting in a huge structural diversity.

Read More

The chain of effects between sunburn necroses and rot infestation in the context of climate change

Climate change will increasingly challenge future viticulture due to long-enduring and extreme weather conditions, jeopardizing yield and wine quality in various ways.

Read More

The “resources profile®”: a relevant decision and support system for adapting viticultural practices to soils agronomic properties and limiting their environmental impacts

Soil is a three-dimensional complex system, which constitutes a major component of Terroir. Soil characteristics strongly influence vine development, grape oenological potentialities and thus wine quality and style.

Read More

Study of wine-growing land (“terroir”) characteristics in the canton of Vaud (Switzerland): ecophysiological behaviour of the vine (cv. Chasselas)

A study of the physiological and agronomical behaviour of the vine (cv. Chasselas) was conducted between 2001 and 2003 by the Swiss Federal Research Station for Plant Production at Changins (Agroscope RAC Changins) on various wine-growing farms (terroirs) in the Canton of Vaud (Switzerland), as part of a study project on Vaudois

Read More

Influence of methyl jasmonate foliar application to vineyard on grape volatile composition over three consecutive vintages

An alternative to improve grape quality is the application to the vineyard of elicitors. Although these compounds were first used to increase resistance of plants against pathogens, it has been found that they are also able to induce mechanisms involved in the synthesis of phenolic compounds and some amino acids. However, researches about the influence of elicitors on grape volatile composition are scarcely. Therefore, the aim of this work was to study the influence of methyl jasmonate (MeJ) foliar application on grape aroma composition over three consecutive vintages. MeJ was applied to Tempranillo grapevines at a concentration of 10 mM in 2013, 2014, and 2015 years. Control plants were sprayed with water.

Read More