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…

New oenological criteria for selecting strains of Lachancea thermotolerans for wine technology

The study conducted various fermentations of different grape juices using various strains of Lachancea thermotolerans and one strain of Saccharomyces cerevisiae. Because of the new conditions caused by climate change, wine acidity must be influenced as well as the volatile profile. Non-Saccharomyces yeasts such as L. thermotolerans are real options to mitigate the impact of climate change in wine production.

Adsorption of tetraconazole by organic residues and vineyard organically-amended soils 

Spain is the country with the largest wine-producing area in the EU and its productivity is largely controlled applying fungicides. However, residues of these compounds can move and contaminate surface and groundwater. The objective of this work was to evaluate the capacity of bioadsorbents from different origin to adsorb and immobilize tetraconazole by themselves or when applied as organic soil amendment, and to prevent soil and water contamination by this fungicide. The adsorption of tetraconazole by 3 organic residues: spent mushroom substrate (SMS), green compost (GC) and vine pruning sawdust (VP), as well as by vineyard soils unamended and amended individually with these residues at 1.5% (w/w) was evaluated using the batch equilibrium technique.

Vertical cordon training system enhances yield and delays ripening in cv. Maturana Blanca

The growing interest in minority grape varieties is due to their potential for adaptation to global warming and their oenological capabilities. However, the cultivation of these varieties has often been limited due to their low economic efficiency. One such example is Maturana Blanca, a recently recovered and authorized minority grape variety in the DOCa Rioja region, known for its remarkable oenological potential but low productivity. This study aimed to increase the yield of Maturana Blanca by implementing the vertical cordon training system, which allowed for a higher number of buds per plant and an increased cluster count per vine.

Effect of rising atmospheric CO2 levels on grapevine yield and composition by the middle of the 21st century: what can we learn from the VineyardFACE?

Atmospheric CO2 levels have been rising continuously since the industrial revolution, affecting crop physiology, yield and quality of harvest products, and grapevine is no exception [1]. Most of previously reported studies used potted plants in controlled environments, and explored grapevine response to relatively high CO2 levels, 700 ppm or more. The vineyardFACE, established in Geisenheim in 2012, uses a free air carbon dioxide enrichment (FACE) system to simulate a moderate (ambient +20%) increase in atmospheric CO2 in a vineyard planted with cvs. Cabernet-Sauvignon and Riesling grafted on rootstock 161-49 Couderc and SO4, respectively.

Adsorption of tetraconazole by organic residues and vineyard organically-amended soils 

Spain is the country with the largest wine-producing area in the EU and its productivity is largely controlled applying fungicides. However, residues of these compounds can move and contaminate surface and groundwater. The objective of this work was to evaluate the capacity of bioadsorbents from different origin to adsorb and immobilize tetraconazole by themselves or when applied as organic soil amendment, and to prevent soil and water contamination by this fungicide. The adsorption of tetraconazole by 3 organic residues: spent mushroom substrate (SMS), green compost (GC) and vine pruning sawdust (VP), as well as by vineyard soils unamended and amended individually with these residues at 1.5% (w/w) was evaluated using the batch equilibrium technique.