publication . Doctoral thesis . 2016

Estudio de nuevas levaduras Killer "Saccharomyces cerevisiae" y "Torulaspora delbrueckii" para elaborar vinos tranquilos y espumosos

Velázquez Molinero, Rocío;
Open Access Spanish; Castilian
  • Published: 09 Nov 2016
Abstract
Two new types of wine killer yeasts with broad antifungal activity were analysed: Saccharomyces cerevisiae Klus and Torulaspora delbrueckii Kbarr. They killed all the previously known S. cerevisiae killer and sensitive strains, in addition to other non-Saccharomyces yeasts. Beta-glucan seems to be the cell wall receptor of the sensitive yeasts. The killer phenotype is encoded by a medium-size (1.3 to 1.7 kb) dsRNA virus, M, which seems to depend on a large-size 4.6 kb dsRNA virus, LA, for stable maintenance and replication. The ORF at the 5’ region codes for a putative preprotoxin followed by an internal A-rich sequence and a 3’-end non-coding region containing ...
Subjects
free text keywords: Saccharomyces cerevisiae, Torulaspora delbrueckii, Vinos, Levaduras, Biología molecular de microorganismos, Wines, Yeasts, Molecular biology of microorganisms
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