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Genetic Diversity of Indigenous Saccharomyces sensu stricto Yeasts Isolated from Southern Croatia (CROSBI ID 144154)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Skelin, Andrea ; Sikora, Sanja ; Orlić, Sandi ; Duraković, Lejla ; Redžepović, Sulejman Genetic Diversity of Indigenous Saccharomyces sensu stricto Yeasts Isolated from Southern Croatia // ACS - Agriculturae conspectus scientificus, 73 (2008), 2; 89-94

Podaci o odgovornosti

Skelin, Andrea ; Sikora, Sanja ; Orlić, Sandi ; Duraković, Lejla ; Redžepović, Sulejman

engleski

Genetic Diversity of Indigenous Saccharomyces sensu stricto Yeasts Isolated from Southern Croatia

Alcoholic fermentation is a polimicrobial process involving a large number of genera and species of yeast and bacteria. Th e major yeast genera involved in this process belongs to the Saccharomyces spp. Th e aim of this study was the isolation, identifi cation and determination of genetic diversity of indigenous Saccharomyces cerevisiae natural population taken from cv. Plavac mali from secluded wine growing areas of Southern Croatia. Must samples were taken during the spontaneous alcoholic fermentation followed by yeast isolation. A total of 40 isolates that were physiologically confi rmed to belong to the Saccharomyces sensu stricto group were furthermore diff erentiated by molecular methods. PCR-RFLP analyses of the internal transcribed spacer (ITS1) region of the 18S ribosomal DNA identifi ed 37 of the isolates as S. cerevisiae and two of the isolates as S. bayanus/pastorianus. All isolates were further analyzed by RAPD fi ngerprinting. Th e results of this study showed that in some cases the RAPD assay may be useful to separate species within the Saccharomyces sensu stricto group. Th e molecular analysis confi rmed genetic diversity of S. cerevisiae indigenous population and additionally the involvement of indigenous S. paradoxus and S. bayanus was determined. Th e population structure of Saccharomyces cerevisiae has indicated that each vineyard is characterized with particular S. cerevisiae microfl ora. It is an important step towards the preservation and exploitation of yeast biodiversity in Southern Croatia.

wine yeasts; spontaneous fermentation; Saccharomyces sensu stricto;

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Podaci o izdanju

73 (2)

2008.

89-94

objavljeno

1331-7768

Povezanost rada

Biotehnologija

Indeksiranost