Send to:

Choose Destination
See comment in PubMed Commons below
Appl Environ Microbiol. 1993 Dec;59(12):4037-43.

Occurrence of killer yeasts in spontaneous wine fermentations from the tuscany region of Italy.

Author information

  • 1Dipartimento di Biologia Molecolare, Sezione di Microbiologia, Universit√† degli Studi di Siena, Via Laterina 8, 53100 Siena, Italy.


The occurrence of killer yeasts in an area of Tuscany (central Italy) was studied. Killer yeasts were found in 88% of spontaneous wine fermentations from 18 wineries. The incidence of killers varied with respect to fermentation stage and vintage period, increasing from the first vintage to successive ones and from the commencement to the end of fermentation. At the end of fermentation, the proportion of killer strains relative to total yeast population was below 25% in 15 cases, above 75% in 6 cases, from 25 to 50% in 5 cases, and from 50 to 75% in 3 cases. Karyotype analysis also showed a mixed killer population in the fermentations in which the killers dominated.

Free PMC Article
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire Icon for PubMed Central
    Loading ...
    Write to the Help Desk