Diversidad gen ´etica de levaduras aisladas a partir de uvas de Vitis vinifera ssp. Sylvestris (Gmelin) Hegi en el ´area Euroasi ´atica = Genetic diversity of yeasts isolated from Eurasian populations of Vitis vinifera ssp. Sylvestris (Gmelin) Hegi
Articolo
Data di Pubblicazione:
2017
Citazione:
Diversidad gen ´etica de levaduras aisladas a partir de uvas de Vitis vinifera ssp. Sylvestris (Gmelin) Hegi en el ´area
Euroasi ´atica = Genetic diversity of yeasts isolated from Eurasian populations of Vitis vinifera ssp. Sylvestris (Gmelin) Hegi / G. Cordero-Bueso, I. Vigentini, R. Foschino, D. Maghradze, M. Cantoral Jesús. - In: BIO WEB OF CONFERENCES. - ISSN 2117-4458. - 9:(2017), pp. 02019.1-02019.6. [10.1051/bioconf/20170902019]
Abstract:
Vitis vinifera L. ssp. Sylvestris (Gmelin) Hegi is recognized as the dioecious parental generation of
today’s cultivars. Climatic change and the arrival in Europe of pathogens and pests have led it to be included
on the IUCN Red List of Threatened Species in 1997. At best of our knowledge, no studies on microbial
populations of grape-berry surfaces have been done. The present work has been focused on the study of yeast
occurrence and diversity on grape-berries collected from wild vines. Final outputs have allowed: i)to obtain
precise information about yeast communities; ii) to provide an objective framework for the classification
of the broadest range of species according to their extinction risk; iii) to select attractive yeast strains for
their biotechnological potential, offering new opportunities to winemakers. Sampling plan was performed in
Azerbaijan, Georgia, Italy, Romania and Spain. In all, 3180 yeast colonies were isolated and identified as
belonging to 50 species, including Saccharomyces cerevisiae, by 26S rDNA D1/D2 domains and ITS region
sequencing. Isolates of S. cerevisiae were also analysed by SSR-PCR obtaining 163 different genotypes. This
study highlights the biodiversity potential of pristine environments that still represent a fascinating source to
face common problems in winemaking.
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
G. Cordero-Bueso, I. Vigentini, R. Foschino, D. Maghradze, M. Cantoral Jesús
Link alla scheda completa: