• Title/Summary/Keyword: Starmerella

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Note on Newly Isolated Yeasts from Wild Flowers in Daejeon City, Korea (대전지역 야생화에서 분리한 미기록 효모 균주들의 보고)

  • Kang, Min-Gu;Hyun, Se-Hee;Ryu, Jin-Ju;Min, Jin-Hong;Kim, Ha-Kun;Lee, Jong-Soo
    • The Korean Journal of Mycology
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    • v.40 no.3
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    • pp.174-176
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    • 2012
  • We report morphological and physiological characteristics of newly isolated six kinds of yeasts which are new in Korean mycoflora. The yeasts were isolated from wild flowers in Daejeon city, Korea and identified by molecular analysis of the amplified internal transcribed space rDNA sequence or partial 18S rDNA sequence. Species of isolates were identified as Kuraishia capsulate, Lodderomyces elongisporus, Pseudozyma antarctica, Starmerella bombicola.

Mycological Characteristics and Carbon Source Activities of Unrecorded Wild Yeast Species from Vineyard Soil in Korea (국내 포도밭 토양에서 분리된 야생 효모 미기록종들의 균학적 특성과 탄소원 활성)

  • Bong Soon Yim;Myung Kyum Kim
    • The Korean Journal of Mycology
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    • v.51 no.4
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    • pp.373-381
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    • 2023
  • This study aimed to isolate and characterize wild yeast strains from the vineyard soil in Korea. Twenty yeast strains were isolated from vineyard soil in Gimpo-si, Gyeonggi-do, Korea, where Vitis labrusca cv. Campbell Early is grown. Eighteen strains were previously recorded in Korea. The remaining two, Cyberlindnera mrakii VG-21-10C and Starmerella bacillaris GR9 were not previously recorded in Korea. The mycological characteristics of VG-21-10C and GR9 were investigated. Both were oval-shaped, convex, and smooth. However, differences were evident in colony color and carbon assimilation activities. Strain VG-21-10C is white-colored and assimilates glucose, glycerol, D-xylose, D-cellobiose, D-saccharose, and D-raffinose as carbon sources. Strain GR9 is cream-colored and assimilates glucose, D-saccharose, and D-raffinose as carbon sources.

Antioxidant Activity and Inhibitory Activities of Xanthine Oxidase and Tyrosinase of Yeasts from Wild Flowers in Korea (우리나라 야생화에서 분리한 효모의 항산화 활성과 Xanthine Oxidase 및 Tyrosinase 저해활성)

  • Han, Sang-Min;Hyun, Se-Hee;Kim, Na-Mi;Lee, Jong-Soo
    • The Korean Journal of Mycology
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    • v.43 no.2
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    • pp.99-103
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    • 2015
  • We prepared supernatants and cell-free extracts of yeasts isolated from wild flowers in Korea, and their antioxidant activity and inhibitory activities of xanthine oxidase and tyrosinase were investigated. Among them, cell-free extracts of Kuraishia capsulata UL40-2 and Sporobolomyces ruberrimus 121-Z-3 showed significantly high xanthine oxidase inhibitory activity of 46.4% and 48.3%, respectively. Starmerella bombicola 80-J-1 also showed tyrosinase inhibitory activity of 36.2% in the cell-free extract. Other antioxidant activities and tyrosinase inhibitory activities were not detected or were below 20%. Maximal production of the xanthine oxidase inhibitors were observed when Kuraishia capsulate UL40-2 and Sporobolomyces ruberrimus 121-Z-3 were cultured in the yeast extract-peptone-dextrose media at $30^{\circ}C$ for 24 hour, respectively.

Taxonomic and Microbiological Report on Seven Yeast Species Unrecorded in the National Species List of Korea

  • Jung-Woo Ko;Ye-Jin Kim;Hye-Rim Ryu;Min-Kyeong Kim;Chorong Ahn;Changmu Kim;Cheon-Seok Park
    • The Korean Journal of Mycology
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    • v.51 no.4
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    • pp.287-306
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    • 2023
  • According to our previous study, 500 species of yeast exist in Korea, including nine variants comprising 142 genera and 48 classes in two phyla. Additionally, 4,483 fungal species have been documented at the National Institute of Biological Resources (NIBR). However, despite the industrial use of several yeasts, only 173 species formed part of the National Species List of Korea (NSLK) as of December 2021, mainly due to the lack of taxonomic descriptions. This study aimed to investigate the taxonomy of seven newly isolated yeast species (Hyphopichia burtonii, Starmerella sorbosivorans, Cyberlindnera mycetangii, Cutaneotrichosporon oleaginosum, Nakazawaea ernobii, Pichia kudriavzevii, and Schizosaccharomyces japonicus) for inclusion in the NSLK. The strains were clustered for the phylogenetic analysis of fungal rDNA (D1/D2-26S) sequences. This study provides descriptions of their cell morphology and physiological characteristics, the results of which confirm the indigenous origin of these seven species in Korea and recommend their inclusion in the NSLK.