terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Volatilome in grapevine leaves is defined by the variety and modulated by mycorrhizal symbiosis

Volatilome in grapevine leaves is defined by the variety and modulated by mycorrhizal symbiosis

Abstract

Volatile organic compounds (VOCs) constitute a diverse group of secondary metabolites key for the communication of plants with other organisms and for their adaptation to environmental and biotic stresses. The emission of these compounds through leaves is also affected by the interaction of plants with symbiotic microorganisms, arbuscular mycorrhizal fungi (AMF) among them [1]. Our objective was to know the concentration and profile of VOCs emitted by the leaves of two grapevine varieties (Tempranillo, T, and Cabernet Sauvignon, CS, grafted onto R110 rootstocks), inoculated or not with a consortium of five AMF (Rhizophagus irregularis, Funneliformis  mosseae, Septoglomus deserticola, Claroideoglomus claroideum and C. etunicatum). A total of 43 different VOCs were detected in both varieties by gas chromatography coupled to mass spectrometry (SPME GC-MS). The quantitative analyses revealed that leaves of CS had higher concentration of VOCs than those of T, the effect of the mycorrhizal symbiosis on the total levels of VOCs being non-significant. The predominant VOCs were those synthetized by the LOX/HPL pathway, followed by those coming from MVA/MEP pathway and, in a lesser extent, from SK pathway. Pentyl leaf volatiles (PLV), green leaf volatiles (GLV) and VOCs involved in the resistance of grapevine against Plasmopara viticola were more abundant in CS than in T, especially when plants were associated with AMF. The volatilome profiles obtained revealed that some minor VOCs were only present in one of the two tested grapevine varieties. Mycorrhizal association increased the relative abundance (%) of VOCs derived from the SK pathway in T and that of GLV in CS.

Acknowledgements: To A. Urdiain, M. Oyarzun & H. Santesteban for technical support, Asociación de Amigos (UNAV) for D. Kozikova’s scholarship, Bioera SL for AMF, Ministerio de Ciencia e Innovación (Gobierno España) funded the research (Ref. PID2020-118337RB-IOO)

References:

1)  Velásquez A. et al. (2020) The arbuscular mycorrhizal fungus Funneliformis mosseae induces changes and increases the concentration of volatile organic compounds in Vitis vinifera cv. Sangiovese leaf tissue. Plant Physiol. Biochem. 155: 437-443, DOI 10.1016/j.plaphy.2020.06.048

DOI:

Publication date: October 6, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Goicoechea Nieves1*, Kozikova Daria1, Pascual Inmaculada1

1Environmental Biology department- Group of Stress Physiology in Plants. School of Sciences-BIOMA, University of Navarra. Irunlarrea 1, 31008-Pamplona, Spain

Contact the author*

Keywords

Cabernet Sauvignon, leaves, mycorrhizal symbiosis, Tempranillo, volatile organic compounds

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Use of UHPH to improve the implantation of non-Saccharomyces yeasts

Ultra High-Pressure Homogenization (UHPH) is a high-pressure pumping at 300 MPa (>200 MPa) with a subsequent depressurization against a highly resistant valve made of tungsten carbide covered by ceramic materials or carbon nanoparticles. The intense impact and shear efforts produce the nano-fragmentation of colloidal biopolymers including the elimination of microorganism (pasteurization or sterilization depending on in-valve temperature) and the inactivation of enzymes.

Read More

Application of DEXI PM Vigne sustainability tool to the assessment of alternative vineyard protection strategies

Implementing alternative grapevine systems that incorporate sustainable strategies and innovative farming practices is essential. However, we lack tools for measuring the impact of these new practices on the overall sustainability of vineyards. DEXi PM Vigne (Gary et al., 2015) is a tool developed for ex ante assessment of the sustainability of grapevine cropping systems, from the plot to the farm scale. In the present study, we focused on implementing new strategies of integrated crop protection management with limited pesticide use in vineyards.

Read More

Sensory profile of wines obtained from disease-resistant varieties in La Rioja

The European wine industry is facing multiple challenges derived from climate change and the pressure of different fungal diseases that are compromising the production of traditional varieties. A sustainable alternative maybe the adoption of resistant varieties.
In this study, we have evaluated the enological potential of 9 resistant varieties (5 white and 4 red varieties) in La Rioja. Microvinifications were carried out with three biological replications. Oenological parameters were very diverse with acid content varying from 2.6 g/L to 6.6 g/L.

Read More

Metabolomic profiling of heat-stressed grape berries 

The projected rise in mean air temperatures together with the frequency, intensity, and length of heat waves in many wine-growing regions worldwide will deeply impact grape berry development and quality. Several studies have been conducted and a large set of molecular data was produced to better understand the impact of high temperatures on grape berry development and metabolism[1]. According to these data, it is highly likely that the metabolomic dynamics could be strongly modulated by heat stress (HS).

Read More

Identification of a stable epi-allele associated with flower development and low bunch compactness in a somatic variant of Tempranillo Tinto

Grapevine cultivars are vegetatively propagated to preserve their varietal characteristics. However, spontaneous somatic variations that occur and are maintained during cycles of vegetative growth offer opportunities for the natural improvement of traditional grape cultivars. One advantageous trait for winegrowing is reduced bunch compactness, which decreases the susceptibility to pests and fungal diseases and favor an even berry ripening.

Read More