GiESCO 2019 banner
IVES 9 IVES Conference Series 9 GiESCO 9 GiESCO 2019 9 Impact of tomato black ring virus (TBRV) on quantitative and qualitative feature of Vitis vinifera L. Cv. Merlot and Cabernet franc

Impact of tomato black ring virus (TBRV) on quantitative and qualitative feature of Vitis vinifera L. Cv. Merlot and Cabernet franc

Abstract

Context and purpose of the study – Fifteen nepoviruses are able to induce fanleaf degeneration in grapes which is economically the most imprtant viral disease. Grapevine fanleaf virus (GFLV) is the main causal agent of this disease worldwide and Arabis mosaic virus (ArMV) is the second most important nepovirus involved in this disease in Europe. A third nepovirus has been described in France. Indeed, Tomato Black Ring Virus (TBRV) was detected in vines for the first time in France on a multi‐varietal plot in 2009. The objective of the study was to quantify the impact of TBRV on two varieties of this plot.

Material and methods – Quantitative and qualitative impact of TBRV assessment was carried out in 2010 and 2011. Over 200 vines were analyzed by ELISA tests in order to determine their virus status. Vines were distributed in four groups: 40 vines of Merlot TBRV positive versus 40 merlot vines virus free and 40 vines of Cabernet franc TBRV positive versus 40 free of the virus. For each vine, the presence of eleven other viruses was investigated. In 2010 and 2011 shoot length was measured. In 2010, grape composition was analyzed to determine technological maturity and phenolic maturity of each vine in relation with its virus status.

Results – Shoot length and total pruning weight is reduced in TBRV infected vines, while lateral number is increased. All yield parameters are affected by the presence of the virus. Vines affected by TBRV produce less bunches and berries and smaller berries compared to healthy vines. Yield loss is greater on Merlot compared to Cabernet franc. Grape quality parameters seem to be less affected by the presence of TBRV. These results provide essential elements for the management of the viral disease in the vineyard.

Download the PDF

DOI:

Publication date: June 22, 2020

Issue: GiESCO 2019

Type: Article

Authors

Coralie DEWASME LAVEAU (1), Séverine MARY (2), Guillaume DARRIEUTORT (2), Laurent AUDEGUIN (3),Maarten VAN HELDEN (4), Cornelis VAN LEEUWEN (1)

(1) EGFV, Bordeaux Sciences Agro, INRA, Univ. Bordeaux, ISVV, 33882 Villenave d’Ornon, France
(2) Univ. Bordeaux, Vitinnov, ISVV, 1 cours du Général de Gaulle, 33170 Gradignan, France
(3) Institut Français de la Vigne et du Vin, Domaine de l’Espiguette, 30240 Le Grau du Roi, France
(4) SARDI Entomology, Urrbrae SA 5064, University of Adelaide, Australia

Contact the author

Keywords

Grapevine, virus, grape quality, yield

Tags

GiESCO 2019 | IVES Conference Series

Citation

Related articles…

Saccharomyces cerevisiae intraspecies differentiation by metabolomic signature and sensory patterns in wine

AIM: The composition and quality of wine are directly linked to microorganisms involved in the alcoholic fermentation. Several studies have been conducted on the impact of Saccharomyces cerevisiae on volatile compounds composition after fermentation. However, if different studies have dealt with combined sensory and volatiles analyses, few works have compared so far the impact of distinct yeast strains on the global metabolome of the wine.

Read More

Remote sensing and radiometric techniques applied to vineyards in two regions of Rio Grande do Sul, Brazil

The observation of Earth by satellites has demonstrated the feasibility of establishing differences between plant species, from their spectral features. The reflectance spectrum of vine plants follows this trend, being possible to identify vineyards in satellite images, among other species.

Read More

Banques de données biologiques annuelles par terroir et optimisation des itinéraires culturaux

In addition to studies on the edaphic and landscape characteristics of the environment (Dolédec, 1995), the characterization of the physiology of the vine and of parasitism during its vegetative cycle represents an essential component of knowledge and management of the terroirs.

Read More

Effect of soil particle size on vine water status, leaf ABA content and berry quality in Nebbiolo grapes

The root and shoot abscisic acid (ABA) accumulation in response to water deficit and its relation with stomatal conductance is longtime known in grapevine. ABA-dependent and ABA-independent signalling response to osmotic stress coexist in sessile plants. In grapevine, the signaling role of ABA in response to water stress conditions and its influence on berry quality is critical to manage grapevine acclimation to climate change.

Read More

Valorization of wine lees for oenological interest by eco-responsible processes

Wine lees are the second most important wine by-product in terms of quantity after grape stalk and marc. During aging on lees, it is well known that wine lees yield compounds that act as antioxydant. However the chemical nature of the compounds involved in this behavior (except polyphenols and glutathione) has not yet been totally elucidated. The scarce knowledge of wine lees composition and their potential exploitation make them a promising candidate to obtain new antioxidant products to be used in winemaking. In this study, an eco-sustainable approach to obtain lees extracts exhibiting antioxidant capacity is proposed. Such extracts could be used in a global enological strategy of sulfites level reduction.

Read More