Enoforum 2021
IVES 9 IVES Conference Series 9 Enoforum Web 9 Enoforum Web Conference 2021 9 Dual mode of action of grape cane extracts against Botrytis cinerea

Dual mode of action of grape cane extracts against Botrytis cinerea

Abstract

Crude extracts of Vitis vinifera canes represent a natural source of stilbene compounds with well characterized antifungals properties. In our trials, exogenous application of a stilbene extract (SE) obtained from grape canes on grapevine leaves reduces the necrotic lesions caused by Botrytis cinerea. The SE showed to possess a direct antifungal activity by inhibiting the mycelium growth. The activation of some grapevine defense mechanism was also investigated. H2O2 production and activation of mitogen-activated protein kinase (MAPK) phosphorylation cascades as well as accumulation of stilbenoid phytoalexins were explored on grapevine cell suspension. Moreover, the transcription of genes encoding for proteins affecting defense responses was analyzed on grapevine plants. The SE induced some grapevine defense mechanisms including MAPK activation, and the expression of pathogenesis-related (PR) genes and of a gene encoding the glutathione-S-transferase 1 (GST1). By contrast, treatment of grapevine leaves with SE negatively regulates de novo stilbene production.

References

Section for all references

DOI:

Publication date: April 23, 2021

Issue: Enoforum 2021

Type: Article

Authors

Gicele Sbardelotto De Bona1,2*, Marielle Adrian4, Jonathan Negrel4, Annick Chiltz4, Agnès Klinguer4, Benoît Poinssot4, Marie-Claire Héloir4, Elisa Angelini3, Simone Vincenzi1,2*, Nadia Bertazzon3

1Università di Padova, Dipartimento Territorio e Sistemi Agro-Forestali (TESAF), Viale dell’Università, 16, 35020 Legnaro (PD), Italia
2 Università di Padova, Dipartimento di Agronomia, Animali, Alimenti, Risorse naturali e Ambiente (DAFNAE), Viale dell’Università, 16, 35020 Legnaro (PD), Italia
3Centro di Ricerca Viticoltura ed Enologia (CREA), Via XXVIII Aprile 26, 31015 Conegliano, TV, Italia
4Agroécologie, AgroSup Dijon, CNRS, INRA, Université de Bourgogne, Franche- Comte, F-21000, Dijon, Francia

Contact the author

Keywords

cane extract, resveratrol, stilbenes, phytoalexin, Botrytis cinerea, grapevine, defense response

Tags

Enoforum 2021 | IVES Conference Series

Citation

Related articles…

Spatial characterization of land use in the viticultural Maipo Valley (Chile), using aster image digital processing

L’entreprise viticole Concha y Toro S.A. gère environ 600 ha de vignes dans la Vallée du Maipo (A.O. Valle del Maipo). L’objectif est celui de caractériser spatialement ces vignobles et leur occupation du sol environnante. Le choix s’est porté vers la démarche de zonage viticole par l’analyse spatiale, utilisant des traitements d’images satellitaires afin d’avoir une vision synoptique de la zone à moindres coûts et délais. Un système d’informations géographiques (SIG) est construit à partir des données suivantes : cartes topographiques, géologique, fond cadastral numérique, images satellitaires. Un modèle numérique de terrain est par ailleurs construit à une résolution de 25 m à partir des cartes topographiques.
Read More

Evidence for terroir effect associated with botrytisation relatively to compounds implicated in typical aromas of noble rot sweet wines

Recent studies have demonstrated the role of certain lactones, particularly 2-nonen-4-olide, and volatile thiols (3-sulfanylhexan-1-ol) in the over ripped aromas of noble rot sweet wines (Stamatopoulos et al. 2014ab). These compounds are partly formed during the maturation and under the activity of B. cinerea on grapes. This research was carried out in the vineyard of Sauternes with aim to better understand their genesis depending on the grape over-ripening on two different soil types during 3 vintages. Thus, the study was conducted, with the Sémillon grape, during vintages 2012, 2014 & 2015, at 4 stages of over-maturation of the grapes (healthy, pourri plein, pourri roti, pourri roti + 15 days) considering two vineyard plots with different soil characteristics (calcosol & peyrosol) planted with the 315 Sémillon clone and grafted on 101-14 rootstock respectively in 1981 and 1980 and cultivated with the same vineyard management. Volatile lactones were assayed by liquid-liquid extraction followed by GC/MS analysis and the precursors of 3-sulfanylhexanol by an adaptation of the method by Capone et al. 2010 (SPE-
UPLC/FTMS).

Read More

Remote sensing and ground techniques, applied to the characterization of a new viticultural region at Pinto Bandeira, Brazil

The region of viticultural production near Pinto Bandeira, Brazil, is being studied to define typical characteristics of wines locally produced.

Read More

Kinetic investigations of the sulfite addition on flavanols

Sulfonated monomeric and dimeric flavan-3-ols are recently discovered in wine and proved to have great importance in understanding wine chemistry and quality [1, 2].

Read More

Grapevine downy mildew development as affected by chitosan spray treatments and metabolomics implications

Chitosan has been shown to enhance grapevine tolerance toward downy mildew while reducing the environmental impact of traditional protection products.

Read More