terclim by ICS banner
IVES 9 IVES Conference Series 9 From soil to canopy, the diversity of adaptation strategies  to abiotic constraints in grapevine

From soil to canopy, the diversity of adaptation strategies  to abiotic constraints in grapevine

Abstract

Climate change is here. One of the main consequences is an increase in the frequency and severity of abiotic stresses which mostly occur in a combined manner. Grapevine, which grows in a large diversity of pedo-climatic conditions, has presumably evolved different mechanisms to allow this widespread adaptation. Harnessing the genetic diversity in these mechanisms will be central to the future of viticulture in many traditional wine growing areas. The interactions between the scion and the rootstock through grafting add an additional level of diversity and adaptive potential to explore.

At the physiological level, these mechanisms are related to processes such as root system development and functioning (water and nutrient uptake), interactions with the soil microbiome, gas exchange regulation, hydraulic properties along the soil-plant-atmosphere continuum, reserve storage, short and long distance signaling mechanisms and plasticity for some of these traits. At the molecular level, hormonal, osmotic and oxidative metabolisms are involved. Considering all together, adaptation to any constraint appears as a complex property arising from the interaction of these processes.

Based on a review of recent literature related to grapevine and other plants, and some studies performed in our own laboratory, this communication will illustrate the diversity of adaptive responses, how these responses characterize different adaptation strategies and how these strategies can be leveraged to select new genotypes for the future.

Download the abstract

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Article

Authors

Nathalie Ollat1*, Marina de Miguel Vega1, Clément Saint Cast1, Elisa Marguerit1, Philippe Vivin1, Virginie Lauvergeat1, Cornelis van Leeuwen1, Sarah J. Cookson1, Philippe Gallusci1, Gregory A. Gambetta1

1 EGFV, University of Bordeaux, Bordeaux Sciences Agro, INRAE, ISVV, 210 chemin de Leysotte, 33883 Villenave d’Ornon

Contact the author*

Keywords

Vitis spp, hydraulic traits, microbiome, root development, signaling

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Caratterizzazione varietale della CV. Vranac del Montenegro: primi risultati

Questo studio ha permesso di raccogliere alcune informazioni sul profilo chimico della cultivar Vranac coltivata in Montenegro. L’uva ha mostrato di raggiungere un buon accumulo zuccherino
Read More

Determining sub-appellations in Ontario’s wine regions

Vintners Quality Alliance (VQA) Ontario, (Alliance de qualité Vintners) est responsable de l’administration et de l’imposition des normes en liaison avec la qualité du vin, l’appellation d’origine, les variétés de raisin et les méthodes de production. Des vins produits selon les règlements de VQA sont actuellement étiquetés de trois distinctes mais larges régions d’appellation

Read More

Use of a recombinant protein (Harpin αβ) as a tool to improve phenolic composition in wines

Climate change is modifying environmental conditions in all wine-growing areas of the
world.

Read More

Effect of intra‐vineyard ripeness variation on the efficiency of commercial enzymes on berry cell wall deconstruction under winemaking conditions

Intra-vineyard variation grape berry ripening occurs within bunches, between bunches on the same vine and between vines. Although it is assumed that such variation also occurs at the grape berry cell wall level, no study to data has investigated in any depth. Here we have used a intra-vineyard panel design to investigate pooled bunches from six vines (per panel) in the context of a winemaking scenario. The dissected vineyard was harvested by separate panels, where each panel was then subjected to a standard winemaking procedure with or without the addition of three different enzyme preparations for maceration.

Read More

Inert gases persistence in wine storage tank blanketing

It is common to find tanks in the winery with wine below their capacity due to wine transfers between tanks of different capacities or the interruption of operations for periods of a few days. This situation implies the existence of an ullage space in the tank with prolonged contact with the wine causing its absorption/oxidation. Oxygen uptake from the air headspace over the wine due to differences in the partial pressure of O2 can be rapid, up to 1.5 mL of O2 per liter of wine in one hour and 100 cm2 of surface area1 and up to saturation after 4 hours.

Read More