Macrowine 2021
IVES 9 IVES Conference Series 9 Application of plant growth regulators on Vitis vinifera L var. Mouchtaro affect berry quality characteristics & associated microbial communities

Application of plant growth regulators on Vitis vinifera L var. Mouchtaro affect berry quality characteristics & associated microbial communities

Abstract

The phenolic profile of the red grapevine varieties berries is a key quality factor and several techniques have been applied to improve it (Perez-Lamela et al., 2007; Singh SK and Sharma, 2010). The last decade the application of resistance elicitors and phytohormones is an innovative viticultural technique (Paladines-Quezada et al., 2021; Alenazi et al., 2019).In the present study, leaves and berries of a Greek red indigenous variety (Mouhtaro) sprayed with two elicitors, benzothiadiazole and chitosan and a plant hormone abscisic acid, during veraison. Physicochemical and phenolic characteristics of the berries and microbial communities of carposphere were analyzed during harvest.Differences in the microbial communities were observed after the application of the plant activators. CHT treatment increased the abundance of the beneficial lactic acid bacteria while the ABA treatment decreased the presence of spoilage fungi on the carposphere. Treatments differentiate total phenolics, anthocyanins and in the chemical characteristics of grape must with chitosan treated grapes had increased anthocyanins and skin-derived phenolics that correlated positively with the microbial taxa that was discriminant by LefSe analysis.In the present research, we investigated the effect of alternative environmentally friendly compounds on grape berry quality characteristics, and how the carposhere communities could be influenced by them, contributing to the establishment of more sustainable viticulture.

DOI:

Publication date: September 3, 2021

Issue: Macrowine 2021

Type: Article

Authors

Myrto Tsiknia, Nikolaos KONTOUDAKIS1, Maria DIMOPOULOU2, Yorgos KOTSERIDIS1

Soil Science and Agricultural Chemistry Lab, Department of Natural Resources and Agricultural Engineering, Agricultural University of Athens, Athens, Greece,Dimitrios-Evangelos MILIORDOS1;

1 Agricultural University of Athens, Department of Food Science and Human Nutrition, Laboratory of Enology and Alcoholic Drinks, Athens
2 Department of Wine, Vine, and Beverage Sciences, School of Food Science, University of West Attica, Athens, Greece

Contact the author

Keywords

Vitis vinifera, mouhtaro, resistance elicitors, plant hormones, grapevine microbiome, benzothiadiazole, chitozan, abscisic acid

Citation

Related articles…

Towards a European data basis based of advanced multi-isotopic signatures and artificial intelligence: the wine in blue project

Major and trace elements are essential for the development of grapes used for the wine. They are primarily originating from the soil. Some elements are also seldomly added during the wine making process. Therefore, the largest spectrum of major, trace and ultra-trace elements in the final wine product is a good signature of its geographical origin. In the frame of the European tracewindu, we have developed a very original multi-isotopic dilution method using triple quadrupole icp/ms.

Read More

Quantitative nuclear magnetic resonance spectroscopy 2H(D)-qNMR in the study of deuterium distribution in intracellular water and fermentation products of grape carbohydrates using ethyl alcohol as an example

The paper presents results that develop the results of studies carried out in 2022-2023 under the OIV grant on the topic of distribution of deuterium (2H(D)) in the intracellular water of grapes and wines, taking into account the impact of natural, climatic and technogenic factors using quantitative nuclear magnetic resonance spectroscopy (qNMR).

Read More

Regionality in Australian Pinot Noir wines: A study using NMR and ICP-MS with commercial wines

Aim: Wine quality and character are defined in part by the terroir in which the grapes are grown. Metabolomic techniques, such as nuclear magnetic resonance (NMR) spectroscopy and inductively coupled plasma mass spectrometry (ICP-MS), are used to characterise wines and to detect wine fraud in other countries but have not been extensively trialled in Australia. This study aimed to investigate the use of ICP-MS and NMR to characterise a selection of Pinot noir wines.

Read More

Preliminary studies on polyphenol assessment by Fourier transform-near infrared spectroscopy (FT-NIR) in grape berries

NIR spectroscopy has widely been tested in viticulture as powerful alternative to traditional analytical methods in the field of quality evaluation. NIR instruments have been used for assessing must and wine quality features in several works, but little information regarding their application on whole berries for polyphenol determination is available.

Read More

Use of satellite in precision viticulture: the Franciacorta experience

Today, the concept of precision vine management (or site-specific viticulture) has a great relevance. It is based on the practice of a different management in relation to the different features of the crop site. In this way, all practices should be adapted to the land spatial variability and should be linked to the real needs of vines.

Read More