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KMID : 0379120170450030234
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Korean Journal of Mycology
2017 Volume.45 No. 3 p.234 ~ p.240
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Isolation of Wild Yeasts from Soils of Reed Fields in Seocheon-gun County, Chungcheongnam-do, South Korea, and Characterization of Unrecorded Yeasts
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Han Sang-Min
Lee Sang-Yeop
Lee Hyang-Burm
Lee Jong-Soo
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Abstract
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The goal of this study was to isolate wild yeasts from reed fields in the Seocheon-gun county in Chungcheongnam-do, South Korea. Molecular analysis of the D1/D2 domain of the 26S rDNA of the yeasts isolated from soil samples was performed using Basic Local Alignment Search Tool (BLAST). In total, 20 yeast strains from 11 species were isolated from 20 different soil samples. species were observed to be the most common yeasts. Of these 20 strains, (6 strains), (3 strains), MS008, and (2 strains) were identified as alcohol-fermenting yeasts. Further, YJ10-1, J7-1, YJ11-1, and Ustilago shanxiensis Y10-1 were newly recorded yeast strains in Korea, and therefore, their microbiological characteristics were investigated further. All of these unrecorded yeast strains had oval cells; only J7-1 formed ascospores and pseudomycelia. Kluyveromyces yarrowii YJ11-1 grew in vitamin-free medium, and all of these strains, except J7-1, grew in 5% NaCl-containing YPD broth.
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KEYWORD
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Alcohol-fermenting yeasts, Reed field, Soils, Unrecorded yeasts, Wild yeast
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