terclim by ICS banner
IVES 9 IVES Conference Series 9 Volatile Organic Compound markers of Botrytis cinerea infection in artificially inoculated intact grape berries

Volatile Organic Compound markers of Botrytis cinerea infection in artificially inoculated intact grape berries

Abstract

The addition of partially dehydrated grapes to enrich must composition for producing complex dry/sweet wines represents a traditional practice in several regions of the world. However, the environmental conditions of dehydration chambers may facilitate the infection of Botrytis cinerea Pers. by promoting disease and provoking large grape losses. B. cinerea attack can induce alterations in the profile of volatile organic compounds (VOCs), which could be detected by sensors specifically trained to detect infection/disease-related compounds. These sensors could facilitate the early detection of the infection, consequently allowing to adjust some dehydration parameters. To deepen the understanding on alterations induced by B. cinerea on intact grape VOCs profile, berries from Sangiovese and Corvina cultivars were collected and analysed by SPME-GC-MS as such and following artificial inoculation with a spore suspension of B. cinerea (10 μl, 105 spores ml-1) or mock inoculation by using the same volume of sterile growth medium (control). Preliminary results have shown that high levels of a set of primary and secondary alcohols appeared to be emitted by inoculated berries. Some of these molecules are already reported as correlated with B. cinerea infection, while others are not mentioned as infection markers yet. Moreover, the dynamics of the emission of some of these compounds during the in vitro development of B. cinerea cultures have also been studied. Setting up sensors capable of detecting the identified volatile markers in the dehydration chambers represents an ambitious goal for reducing spoilage and grape losses via targeted interventions.

DOI:

Publication date: June 14, 2024

Issue: Open GPB 2024

Type: Poster

Authors

Pietro Emilio Nepi1*, Claudia Pisuttu2, Cristina Nali2, Elige Salame1, Pietro Tonutti1, Stefano Brizzolara1

1Crop Science Research Center, Scuola Superiore Sant’Anna di Studi Universitari, Piazza Martiri della Libertà,33,56127, PISA, ITALY
2Department of Agriculture, Food and Environment, University of Pisa, Via del Borghetto 80,56124, PISA, ITALY.(Left-aligned, italic, Arial 9)

Contact the author*

Keywords

grape, grey mould, VOCs, sensors, sustainability

Tags

IVES Conference Series | Open GPB | Open GPB 2024

Citation

Related articles…

Grapevine root system architecture: empirical insights and first steps towards in silico studies

Root System Architecture (RSA) is crucial for plant resilience and resource uptake, yet remains underexplored in viticulture.

Are Farm to fork strategy goals reasonable and achievable? State of the art of Península de Setubal’s winegrowers

The European Union’s “farm to fork” strategy sets out several objectives to be achieved by farmers, who, among others, relate to increasing biodiversity, protecting soils and reducing the use of pesticides. At a time when the amendments to the national plans of Sustainable Use of pesticides are being discussed, it is important to understand what the Setúbal Peninsula region status is.

Designing and managing a sustainable vineyard in a climate change scenario

Extension of the growing season, compression of the annual growth cycle and higher frequency and severity of weather extreme events are consistent features of global warming. While mitigation of factors causing global warming is necessary in the medium-long term, wine growers need “ready to go” adaptation practices to counteract negative effects bound to climate change. This must be done in a sustainably way, meaning that remunerative yield, desired grape quality, low production cost and environment friendly solutions must be effectively merged. In this work, we will review contribution given over the last two decades prioritizing issues related to scion and rootstock choice, changes in vineyard floor management, new perception related to the use of irrigation in vineyards, adaptation practices aimed at decompress maturity, solutions to counteract or minimize damages due to late frost and sunburn and, lastly, some hints on how precision viticulture can help with all of this.

Climat et sol: critères d’évaluation et effets sur le comportement de la vigne

Le zonage viticole aborde en premier lieu la caractérisation des macroclimats aux échelles des grandes régions, pays, continents ou monde (géoviticulture).

Electromagnetic conductivity mapping and harvest zoning: deciphering relationships between soil and wine quality

Using electromagnetic conductivity mapping and GIS technology, we identified two unique soil zones within a 0.8-hectare Cabernet Franc block in central Virginia, USA.