Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation

Background and Aims. Grapevine is susceptible to several diseases and requires a large use of fungicides. Sustainable alternatives must be safe for humans and the environment and also should not interfere with must fermentation. The aim of this study was to implement the use of a rare sugar, tagatos...

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Main Authors: O. Giovannini, T. Roman, A. Nesler, I. Pertot, M. Perazzolli
Format: Article
Language:English
Published: Hindawi-Wiley 2022-01-01
Series:Australian Journal of Grape and Wine Research
Online Access:http://dx.doi.org/10.1155/2022/9814348
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author O. Giovannini
T. Roman
A. Nesler
I. Pertot
M. Perazzolli
author_facet O. Giovannini
T. Roman
A. Nesler
I. Pertot
M. Perazzolli
author_sort O. Giovannini
collection DOAJ
description Background and Aims. Grapevine is susceptible to several diseases and requires a large use of fungicides. Sustainable alternatives must be safe for humans and the environment and also should not interfere with must fermentation. The aim of this study was to implement the use of a rare sugar, tagatose, against powdery mildew and downy mildew and to assess possible side effects on Saccharomyces cerevisiae fermentation. Methods and Results. Tagatose was evaluated for the suppression of powdery mildew and downy mildew under controlled and field conditions and for its impact on S. cerevisiae fermentation of synthetic and grape musts. Tagatose applied at 8 kg/hareduced powdery mildew and downy mildew severity and incidence on grapevine leaves and bunches under field conditions. Tagatose caused a limited and transient slowdown of the fermentation with no negative impact on yeast viability and wine chemical composition at the end of the fermentation. Conclusions. Tagatose is a promising alternative for sustainable grapevine protection against powdery mildew and downy mildew with no negative impacts on the must fermentation. Significance of the Study. These findings pave the way for grapevine protection strategies based on the use of rare sugars as sustainable fungicides in integration with other plant protection products.
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spelling doaj.art-a38adb15bb814ef9a1ff8044c0475efc2023-09-24T00:00:14ZengHindawi-WileyAustralian Journal of Grape and Wine Research1755-02382022-01-01202210.1155/2022/9814348Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must FermentationO. Giovannini0T. Roman1A. Nesler2I. Pertot3M. Perazzolli4Research and Innovation CentreTechnology Transfer CentreBi-PA nv. (Biological Products for Agriculture)Research and Innovation CentreResearch and Innovation CentreBackground and Aims. Grapevine is susceptible to several diseases and requires a large use of fungicides. Sustainable alternatives must be safe for humans and the environment and also should not interfere with must fermentation. The aim of this study was to implement the use of a rare sugar, tagatose, against powdery mildew and downy mildew and to assess possible side effects on Saccharomyces cerevisiae fermentation. Methods and Results. Tagatose was evaluated for the suppression of powdery mildew and downy mildew under controlled and field conditions and for its impact on S. cerevisiae fermentation of synthetic and grape musts. Tagatose applied at 8 kg/hareduced powdery mildew and downy mildew severity and incidence on grapevine leaves and bunches under field conditions. Tagatose caused a limited and transient slowdown of the fermentation with no negative impact on yeast viability and wine chemical composition at the end of the fermentation. Conclusions. Tagatose is a promising alternative for sustainable grapevine protection against powdery mildew and downy mildew with no negative impacts on the must fermentation. Significance of the Study. These findings pave the way for grapevine protection strategies based on the use of rare sugars as sustainable fungicides in integration with other plant protection products.http://dx.doi.org/10.1155/2022/9814348
spellingShingle O. Giovannini
T. Roman
A. Nesler
I. Pertot
M. Perazzolli
Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation
Australian Journal of Grape and Wine Research
title Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation
title_full Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation
title_fullStr Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation
title_full_unstemmed Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation
title_short Tagatose Suppresses Grapevine Powdery Mildew and Downy Mildew under Field Conditions with No Severe Impacts on Grape Must Fermentation
title_sort tagatose suppresses grapevine powdery mildew and downy mildew under field conditions with no severe impacts on grape must fermentation
url http://dx.doi.org/10.1155/2022/9814348
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AT anesler tagatosesuppressesgrapevinepowderymildewanddownymildewunderfieldconditionswithnosevereimpactsongrapemustfermentation
AT ipertot tagatosesuppressesgrapevinepowderymildewanddownymildewunderfieldconditionswithnosevereimpactsongrapemustfermentation
AT mperazzolli tagatosesuppressesgrapevinepowderymildewanddownymildewunderfieldconditionswithnosevereimpactsongrapemustfermentation