terclim by ICS banner
IVES 9 IVES Conference Series 9 International Congress on Grapevine and Wine Sciences 9 2ICGWS-2023 9 Analysis of the interaction of melatonin with glycolytic proteins in Saccharomyces cerevisiae during alcoholic fermentation 

Analysis of the interaction of melatonin with glycolytic proteins in Saccharomyces cerevisiae during alcoholic fermentation 

Abstract

Melatonin is a bioactive compound with antioxidant properties, that has been found in many fermented beverages, such as beer and wine [1]. Indeed, it has been shown that yeast can synthesize melatonin during alcoholic fermentation, although its role inside the cell, as well as the metabolic pathway involved in its synthesis, is still unclear [1]. Recent studies showed that during fermentation, melatonin interacts with different proteins of the glycolytic pathway in both Saccharomyces and non-Saccharomyces yeast, for instance glyceraldehyde 3-phosphate dehydrogenase, pyruvate kinase or enolase [2]. The aim of this study was to deepen in the role of the melatonin within yeast cells, and in the interaction with glycolytic proteins. For that purpose, we performed fermentations with both single and double mutant strains of the different glyceraldehyde 3-phosphate dehydrogenase isoforms (Tdh1, Tdh2 and Tdh3). Melatonin from fermentation samples was analyzed by liquid chromatography mass spectrometry, and proteins bound to melatonin were immunopurified by melatonin IgG-Dynabeads. Intracellular melatonin on the tdhmutant strains during fermentation showed a similar pattern to the wild type strain. Regarding the protein binding to melatonin, in the single and double mutants, we observed that there was only protein binding when the Tdh2 protein was present. Then, we analysed the possible binding sites between Tdh2 and melatonin, using Swissdock and UFCS Chimera programs. The prediction showed that melatonin can form two hydrogen bonds with Tdh2. The results of this study indicate the binding site of melatonin to Tdh2 during fermentation, which could be related to the regulation of yeast carbon metabolism.

This work has been financed by the project PDI2019-108722RB-C33 (MCIN/AEI/10.13039/ 501100011033). SME has had a Martí-Franquès predoctoral grant (2019PMF-PIPF-92).

1)  Mas, A. et al. (2014) Bioactive compounds derived from the yeast metabolism of aromatic amino acids during alcoholic fermentation. Biomed Res Int. 2014;2014:898045, DOI 10.1155/2014/898045

2)  Morcillo-Parra, M.A. et al. (2020) Melatonin and glycolytic protein interactions are related to yeast fermentative capacity. Food Microbiol., 87, DOI 10.1016/j.fm.2019103398

DOI:

Publication date: October 16, 2023

Issue: ICGWS 2023

Type: Poster

Authors

Sandra Martín-Esteban*, Albert Mas, Gemma Beltran, María-Jesús Torija

Grup de Biotecnologia Enològica, Departament de Bioquímica i Biotecnologia. Facultat d’Enologia, Universitat Rovira i Virgili. C/ Marcel·lí Domingo, 1, 43007, Tarragona

Contact the author*

Keywords

fermentation, melatonin, glycolysis, glyceraldehyde 3-phosphate dehydrogenase

Tags

2ICGWS | ICGWS | ICGWS 2023 | IVES Conference Series

Citation

Related articles…

Molecularly imprinted polymers: an innovative strategy for harvesting polyphenoles from grape seed extracts

Multiple sclerosis (MS) is a multifactorial autoimmune disease associating demyelination and axonal degeneration developing in young adults and affecting 2–3 million people worldwide. Plant polyphenols endowed with many therapeutic benefits associated with anti-inflammatory and antioxidant properties represent highly interesting new potential therapeutic strategies. We recently showed the safety and high efficiency of grape seed extract (GSE), a complex mixture of polyphenolics compounds comprising notably flavonoids and proanthocyanidins, in an experimental autoimmune encephalomyelitis (EAE) mouse model of MS.

Predicting provenance and grapevine cultivar implementing machine learning on vineyard soil microbiome data: implications in grapevine breeding

The plant rhizosphere microbial communities are an essential component of plant microbiota, which is crucial for sustaining the production of healthy crops. The main drivers of the composition of such communities are the growing environment and the planted genotype. Recent viticulture studies focus on understanding the effects of these factors on soil microbial composition since microbial biodiversity is an important determinant of plant phenotype, and of wine’s organoleptic properties. Microbial biodiversity of different wine regions, for instance, is an important determinant of wine terroir.

Model-assisted analysis of the root traits underlying RSA genotypic diversity in Vitis: a promising approach for rootstock selection?

By dissecting the root system architecture (RSA) into its underpinning components (e.g. root emission, axial growth, radial growth, branching, root direction or tropism) and identifying the relationships between them, functional-structural 3D root models are promising tools for analyzing the diversity and complexity of root system phenotypes with Genotype × Environment interactions. The model parameters are assumed to be synthetic traits, less influenced by the environment, and consequently with less polygenic architectures than the integrative RSA traits they drive. Root models can serve as a basis for in silico development of root system ideotypes by highlighting the developmental processes and parameters that most likely influence RSA fitness.

Influence of different Lachancea thermotolerans strains in wine acidity

Wine acidity is a parameter of great importance that influences different quality factors of the product such as biological stability or organoleptic characteristics. In the current context of climate change, which gives rise to wines with higher levels of ethanol and lower acidity, the biological acidification with yeast species such as Lachancea thermotolerans could be a solution.
In this work, the effect of the inoculation of different L. thermotolerans on the acidity of wine was studied.

Vineyard management practices to reduce sugar content on ‘Monastrell’ grapes

Climate change is resulting in more dry and hot summers, accelerating grape ripening and increasing berry sugars concentration. This results in wines with a higher alcohol content, which has a negative impact on wine quality, as well as, on consumer health. Agronomic practices that minimize these effects on berry composition and, consequently, on wine quality must be defined. In this work, different management practices have been assessed on rainfed ‘Monastrell’ grapevines in Jumilla (Murcia, Spain) from 2021 to 2023 vintages. Mulching, shading, application of kaolin and different types of pruning were evaluated, among others field adaptation practices.