V. N. Bayraktar


Micobiological investigation was carried out on Saccharomyces cerevisiae yeast cultures, which were isolated from different varieties of vintage grape harvested from the “Koblevo” winery, Nikolaev region of Ukraine. It was determined that wild yeast cultures tend to be of one of three different phenotypes. For comparison and reference,  investigation of test cultures was performed with previously known phenotypes and yeast cultures Saccharomyces cerevisiae used in wine industry. It was noted that the most desirable yeast cultures had a killer phenotype. These are able to generate toxins that inhibit the growth of other yeast cultures that are present in the same substrate and compete for habitat. It was observed that yeast a neutral phenotype can also be can also utilized in wine industry biotechnology. Yeast cultures with sensitive phenotype, however, die in the substrate (grape musts) in the presence of yeast culture killer phenotypes that secrete killer toxins harmful to these sensitive phenotypes.

Key words: yeast, Saccharomyces cerevisiae, phenotype, killer, neutral, sensitive.

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Bayraktar, V.N., & Polukarova, L.A. (2011). Environmental assessment of coastal waters of Tiligul estuary in the area of cultivation of vineyards of Koblevo winery.The Grape Journal, 36-37(1-2), 46-51.

Bayraktar, V.N., & Polukarova, L.A. (2011). Mixobacteria that are destructors of cellulose in the environmental assessment of coastal waters of Tiligul estuary in the area of cultivation of vineyards of Koblevo winery. The Grape Journal, 38(3), 48-56.

Gaylarde, C., & Cook, P. (1990). New rapid methods for the identification of sulphate-reducing bacteria. International Biodeterioration, 26(5), 337–345.

Palmer, F. E., Staley, J. T., Murray, R. G. Counsell, T., & Adams, J. B. (1986). Identification of manganese-oxidizing bacteria from desert varnish. Geomicrobiology Journal, 4(4), 343-360.

Polukarova, L.A., & Tkachenko, F.P. (2011). Hydrochemical parameters of water and peloids in the Kuialnik estuary as indicator of its ecological condition. Karazin Natural Science Studios. Materials of scientific conference with international participation. February 1-4, 2011 Karazin Kharkiv National University, Ukraine.

Polukarova, L.A., & Bayraktar, V.N. (2012). The environmental assessment of coastal aquatory the Tiligul estuary by bioindicators: macrophytes, zoobenthos and microbiota. Ecology and Noospherology 23(1), 27-31.

Sustainable integrated land use Eurasian steppes. TACIS regional action programme (2004). (Justification for developing a protected area «Kuialnik»)//Technical Report.Activity: 2.2.2.C.

Sugio, T., Uemura S., Makino I., Iwahori K., Tano T., & Blake R. C. (1994).Sensitivity of Iron-Oxidizing Bacteria, Thiobacillus ferrooxidans and Leptospirillum ferrooxidans, to Bisulfite Ion. Applied Environmental Microbiology, 60(2), 722-725.

Voordouw, G., Voordouw, J. K., Jack, T. R., Foght, J., Fedorak, P. M., Westlake, D.S. (1992). Identification of Distinct Communities of Sulfate-Reducing Bacteria in Oil Fields by Reverse Sample Genome Probing. Applied Environmental Microbiology, 58(11), 3542–3552.


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© 2017 Ukrainian Journal of Ecology. ISSN 2520-2138