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Wine fingerprinting using a bio-geochemical approach
Fernandes, José Ramiro; Pereira, Leonor; Jorge, Pedro; Moreira, Luís; Gonçalves, Helena; Coelho, Luís; Alexandre, Daniel; Eiras-Dias, José; Brazão, JoãoThe wine sector is a billion euro business and therefore subjected to multiple attempts of fraudulent practices. This requires the development of rapid and reliable methods to detect such situations. Several methodologies have been developed based on the chemical profiles of the wines, but they are limited due to the environmental conditions that cannot be controlled. The use of DNA-based detection systems are ...
Identity, synonymies and homonynies of minor grapevine cultivars maintained in ...
Alifragkis, Antonios; Cunha, Jorge; Pereira, Joana; Fevereiro, Pedro; Eiras-Dias, JoséNineteen SSR were used to genotype twenty eight accessions from Portugal, France, Greece, and Spain, preserved at the Portuguese National Ampelographic Collection (international code - PRT 051). Some of these accessions have never been genotyped and are minor, underused cultivars. Eight cases of synonymies and one case of homonymy were detected. The identification of synonyms in underused cultivars increases de...
The first insight into the metabolite profiling of grapes from three vitis vini...
Teixeira, António; Martins, Viviana; Noronha, Henrique Luís Silva; Eiras-Dias, José; Gerós, H.The characterization of the metabolites accumulated in the grapes of specific cultivars grown in different climates is of particular importance for viticulturists and enologists. In the present study, the metabolite profiling of grapes from the cultivars, Alvarinho, Arinto and Padeiro de Basto, of two Portuguese Controlled Denomination of Origin (DOC) regions (Vinho Verde and Lisboa) was investigated by gas chr...
Berry phenolics of grapevine under challenging environments
Teixeira, António; Eiras-Dias, José; Castellarin, Simone D.; Gerós, H.Plant phenolics have been for many years a theme of major scientific and applied interest. Grape berry phenolics contribute to organoleptic properties, color and protection against environmental challenges. Climate change has already caused significant warming in most grape-growing areas of the world, and the climatic conditions determine, to a large degree, the grape varieties that can be cultivated as well as...
Efeito da casta no enraizamento de estacas semilenhosas de videira
Brazão, João; Gonçalves, Elsa; Eiras-Dias, José; Amâncio, SaraFrom the massal and clonal selection of grapevine developed in Portugal for the last 30 years, clones of several varieties with high genetic potential were obtained, which are currently used for multiplication to produce base and certified materials. In order to allow the rapid multiplication of selected clones of grapevine, this work evaluate the effect of the variety (Arinto, Malvasia Fina, Aragonez, and Trin...