TOLERANCIA DE Oenococcus oeni RS1 A LAS CONDICIONES DE ESTRÉS DEL VINO TOLERANCE OF Oenococcus oeni RS1 TO STRESS ENVIRONMENTAL CONDITIONS OF WINE TOLERANCIA DE Oenococcus oeni RS1 ÁS CONDICIÓNS DE ESTRÉS DO VIÑO

Abstract Resumen Resumo The tolerance of Oenococcus oeni RS1 to different stress conditions of the wine, its natural habitat, has been studied. The results obtained indicate that, in our assay conditions, the O. oeni RS1 strain exhibit high tolerance to the adverse environmental conditions given by the wine (temperature, high acidity, presence of SO2, ethanol, aromas and metals). In the other hand, when the RS1 strain, who carries the plasmid pRS1, is compared with the RS1C7 strain, who lacks it, the implication of the plasmid pRS1 on the resistance mechanism to the stress conditions gave by antioxidant compounds as SO2 and geraniol can be concluded. © 2004 Altaga. All rights reserved. Se ha estudiado la tolerancia de Oenococcus oeni RS1 frente a distintos factores estresantes propios del vino, su habitat natural. Los resultados obtenidos indican que, en nuestras condiciones de ensayo, la cepa O. oeni RS1 muestra altos niveles de tolerancia a las condiciones adversas propias del vino (temperatura, acidez ...