The diversity of yeast species related with the grape variety Touriga Nacional was evaluated at four distinct vineyards of three Portuguese wine regions. Samples were collected 48 h after crushing, and when the loss of CO2 reached 70 g/L. Restriction profiles analysis of 26S rDNA region with the endonucleases HaeIII, CfoI, HinfI, ApaI and MseI was used to characterize the five hundred and nine isolates obtained...
A levedura Saccharomyces cerevisiae é caracterizada por uma elevada variabilidade fenotípica, que está associada à ocorrência de estirpes em habitats naturais diversificados. Em trabalhos anteriores, demonstrámos a elevada diversidade de estirpes isoladas a partir de ambientes vitivinícolas na Região dos Vinhos Verdes, bem como a ocorrência de estirpes características para cada terroir. A recolha de estirpes au...
A levedura Saccharomyces cerevisiae é caracterizada por uma elevada variabilidade fenotípica, que está associada à ocorrência de estirpes em habitats naturais diversificados. Em trabalhos anteriores, demonstrámos a elevada diversidade de estirpes isoladas a partir de ambientes vitivinícolas na Região dos Vinhos Verdes, bem como a ocorrência de estirpes características para cada terroir. A recolha de estirpes au...
The objective of the present study was to evaluate populational relationships among Saccharomyces cerevisiae strains isolated from some of the Portuguese most important grapevine varieties in different appellations of origin, using polymorphic microsatellites. One hundred ninety two grape samples were collected during the 2006 and 2007 harvest season in the Vinho Verde (grape varieties: Arinto, Alvarinho, Avess...
The objective of the present study was to evaluate populational relationships among <i>Saccharomyces cerevisiae</i> strains isolated from some of the Portuguese most important grapevine varieties in different appellations of origin, using polymorphic microsatellites. One hundred ninety two grape samples were collected during the 2006 and 2007 harvest season in the Vinho Verde (grape varieties: Arinto, Alvarinho...
One hundred ninety two grape samples were collected during the 2006 harvest season in the Vinho Verde (grape varieties: Arinto, Alvarinho, Avesso, Loureiro, Touriga Nacional) Bairrada (grape varieties: Arinto, Baga, Castelão Francês, Maria Gomes, Touriga Nacional) Alentejo (grape varieties, Aragonês, Trincadeira, Touriga Nacional), Terras do Sado (grape variety Castelão) Bucelas (grape variety Arinto) and Estre...