A genetic study of natural flor strains of Saccharomyces cerevisiae isolated during biological ageing from Sardinian wines.
In this study, three flor strains of Saccharomyces cerevisiae were genetically characterized. They were isolated from biofilms on Sardinian sherry-like wines produced at family-run wineries where pure cultures of yeasts were not used. The study aimed to investigate the life cycle of these naturally-occurring flor strains, using a genetic procedure supplemented by analysis of subsequent meiotic generations. A semi-homothallic life cycle was found in three strains that could be helpful in a genetic improvement programme.
Budroni
M
M
Dipartimento di Scienze Ambientali Agrarie e Biotecnologie Agro-Alimentari, Sezione di Microbiologia Generale ed Applicata, Università degli studi di Sassari, Italy. marilena@disaaba.agraria.uniss.it
Giordano
G
G
Pinna
G
G
Farris
G A
GA
D007558:Italy; D012441:Saccharomyces cerevisiae / Q000235:genetics* / Q000302:isolation & purification; D013172:Spores, Fungal; D014920:Wine / Q000382:microbiology*