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…

Biotic and abiotic factors affecting physiological aspects underlying vegetative vigour in two commercial grapevine varieties

Grapevine vigour, defined as the propensity to assimilate, store and/or use non-structural sugars for allowing fast growth of shoots and producing large canopies[1], is crucial to optimize vineyard management. Recently, a model has been proposed for predicting the vigor of young grapevines through the measurement of the vegetative growth and physiological parameters, such as water status and gas exchange[2]. Our objectives were (1) to explore the influence of the association of two grapevine varieties (Tempranillo and Cabernet Sauvignon, grafted onto R110 rootstocks) with arbuscular mycorrhizal fungi (AMF) on the vegetative vigour of young plants; and (2) to assess the effect of environmental factors linked to climate change on the vegetative vigour of Cabernet Sauvignon.
Read More

Improved analysis of isomeric polyphenol dimers using the 4th dimension of trapped ion mobility spectrometry – mass spectrometry

Dehydrodicatechins have recently received attention as oxidation markers especially in grapes and wine. Their analysis mainly uses LC-MS/MS which is able to differentiate them from their natural isomers (dimeric procyanidins), based on specific fragments

Read More

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

Fifteen nepoviruses are able to induce fanleaf degeneration in grapes. Grapevine fanleaf virus (GFLV) is the main causal agent of this disease

Read More

Agroclimatic characterisation of the Portugese wine denominations of origin using a compound index

Aims: This study aims to: (1) characterize the agroclimatic conditions of the Portuguese Denominations of Origin, using a compound index that combines thermal and soil water balance conditions and a high-resolution climatic dataset (~1 km spatial resolution); (2) categorize the main grapevine varieties as a function of this compound index.

Read More

Corvina and Corvinone grape berries grown in different areas and their aptitude to postharvest dehydration

The Valpolicella area (Veneto Region, Italy) is famous for its high quality wines: Amarone and Recioto, both obtained from partial post-harvest dehydrated red grapes.

Read More