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Reference: Chovanova K, et al. (2011) Selection and identification of autochthonous yeasts in Slovakian wine samples using a rapid and reliable three-step approach. Lett Appl Microbiol 53(2):231-7

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Abstract


OBJECTIVE: The investigation of yeast microflora during the must fermentation of two wine varieties (Frankovka modra - Blaufrankisch and Veltlinske zelene - Gruner Veltliner) from two consecutive vintages was performed using a three-step approach. RESULTS: The investigation strategy consisted of the combination of yeast cultivation, selection of the isolated yeasts based on the amplification of internal transcribed spacer 2 using a fluorescence-labelled primer (f-ITS-PCR) and a final identification step based on amplification and sequencing of the ITS1-5.8S rDNA-ITS2 region of the selected yeasts. By this three-step approach, it was possible to screen 433 yeasts isolates that belonged to 13 different species. CONCLUSIONS: The f-ITS-PCR allowed the unambiguous differentiation of all isolated yeast species that produced their typical f-ITS-PCR profile. CONCLUSIONS: This is one of few reports that treat the yeast diversity in Slovakian wines and in two varieties largely cultivated in Central Europe. The three-step approach permitted the rapid and reliable identification of isolated yeasts. The f-ITS-PCR with its good discrimination power can represent a suitable molecular tool for the selection of yeast members recovered from food or other environments. ? 2011 The Authors. Letters in Applied Microbiology ? 2011 The Society for Applied Microbiology.

Reference Type
Journal Article
Authors
Chovanova K, Krakova L, Zenisova K, Turcovska V, Brezna B, Kuchta T, Pangallo D
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