terclim by ICS banner
IVES 9 IVES Conference Series 9 Chemical activation of ABA signaling in grapevine through ABA receptor agonists

Chemical activation of ABA signaling in grapevine through ABA receptor agonists

Abstract

Grapevine (Vitis vinifera) and its derived products, in terms of cultivated area and economic volume, constitute the most relevant fruit crop in the world (7.5 million cultivated hectares). In the current context of climate change, the wine sector faces unprecedented challenges to satisfy a growing demand for wines of greater quality through sustainable viticulture. Global warming threatens quality wine production in Mediterranean wine regions in particular. The increase in heatwaves and drought episodes accelerate the vine phenology and alter the ripening and composition of grapes and wine. Extreme abiotic stress episodes compromise grape production and plant survival, intensifying the pressure on the use of limited resources like water. Abscisic acid (ABA) is an important hormone in the ripening of certain fruits and in plant response to abiotic stress. The application of ABA may be an appropriate strategy to facilitate the vine’s adaptations to stress, modulating the production and quality of grapes. Several studies have shown that ABA initiates and regulates ripening in non-climacteric berries such as grapes. One of the ABA’s roles is increasing the production of anthocyanin. There is an emerging field for the development of molecules that act as ABA receptor agonists but have a longer half-life. These agonists are small molecules that can modulate ABA signaling in a timely, dynamic, and exogenous manner. We explored the use of ABA receptor agonists (iSB09 and AMF4) in grapevine cultivars (Bobal and Tempranillo) to induce ABA-like responses that might benefit plant adaptation to drought or grape composition.

DOI:

Publication date: June 13, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Mar Bono1, Raul Ferrer-Gallego2, Alicia Pou3, Pablo Carbonell-Bejerano3, Leonor Deis2, Jose Miguel Martinez-Zapater3, Diego S. Intrigliolo2 and Pedro L. Rodriguez*1

1 Instituto de Biología Molecular y Celular de Plantas (IBMCP), Consejo Superior de Investigaciones Científicas-Universidad Politécnica de Valencia, ES-46022 Valencia
2 Centro de Investigaciones sobre Desertificación (CIDE), Consejo Superior de Investigaciones Científicas-Universitat de València-Generalitat Valenciana, ES-46113 Moncada (Valencia)

3 Instituto de Ciencias de la Vid y del Vino (CSIC, Gobierno de la Rioja, Universidad de La Rioja), Finca La Grajera, Ctra. Burgos Km. 6, 26007 Logroño

Contact the author*

Keywords

abscisic acid, ABA receptor, agonist, abiotic stress, Bobal-Tempranillo

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Biodiversity in the vineyard agroecosystem: exploring systemic approaches

Biodiversity conservation and restoration are essential for guarantee the provision of ecosystem services associated to vineyard agroecosystem such as climate regulation trough carbon sequestration and control of pests and diseases. Most of published research dealing with the complexity of the vineyard agroecosystems emphasizes the necessity of innovative approaches, including the integration of information at different temporal and spatial scales and development of systemic analysis based on modelling. A biodiversity survey was conducted in the Franciacorta wine-growing area (Lombardy, Italy), one of the most important Italian wine-growing regions for sparkling wine production, considering a portion of the territory of 112 ha. The area was divided into several Environmental Units (EUs), defined as a whole vineyard or portion of vineyard homogenous in terms of four agronomic characteristics: planting year, planting density, cultivar, and training system. In each EU a set of compartments was identified and characterised by specific variables. The compartments are meteorology, morphology (altitude, slope, aspect, row orientation, and solar irradiance), ecological infrastructures and management. The landscape surrounding EU was also characterised in terms of land-use in a buffer zone of 500 m. For each component a specific methodology was identified and applied. Different statistical approaches were used to evaluate the method to integrate the information related to different compartments within the EU and related to the buffer zone. These approaches were also preliminarily evaluated for their ability to describe the contribution of biodiversity and landscape components to ecosystem services. This methodological exploration provides useful indication for the development of a fully systemic approach to structural and functional biodiversity in vineyard agroecosystems, contributing to promote a multifunctional perspective for the all wine-growing sector.

The influence of initial phenolic content on the outcome of pinot noir wine microoxygenation

Over the years, microoxygenation (MOX) has become a popular vinification technique to improve wine sensory qualities. However, among the impacting factors reported

Vineyard floor management intensity impacts soil health indicators and biodiversity across South Australian viticultural landscapes

Vineyard floors in warm, dry landscapes including those in South Australia, have traditionally been managed using intensive practices such as tillage and herbicides to control weeds and vegetation, thereby limiting competition with grapevines for water and nutrients in order to not compromise yields.

Impact of strain and inoculation time on yeasts interactions: mass spectrometry-based study.

Under oenological conditions, when yeasts grow simultaneously during alcoholic fermentation, they often do not coexist passively, and in most cases, physiological and metabolic interactions are established between them. They interact by producing unpredictable compounds and fermentation products that can affect the chemical composition of the wine and therefore alter its aromatic and sensory

Colour, phenolic, and sensory characteristics of commercial monovarietal white wines produced with maceration

White wines produced with skin and seed contact are of great interest in the wine sector. Maceration, whether performed prior to or concurrently with alcoholic fermentation, or even extended beyond its completion, significantly impacts the chromatic, mouthfeel, and aroma characteristics of these wines.