The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Characterization of the Unrecorded Wild Yeasts from the Water and Riverside Soils of Daejeoncheon and Gapcheon in Daejeon Metropolitan City, Korea

대전광역시 대전천과 갑천의 물과 주변 토양들로부터 분리한 국내 미기록 야생효모들의 특성

  • Han, Sang-Min (Department of Biomedicinal Science and Biotechnology, Paichai University) ;
  • Lee, Sang-Yeop (Department of Biomedicinal Science and Biotechnology, Paichai University) ;
  • Kim, Ha-Kun (Department of Biomedicinal Science and Biotechnology, Paichai University) ;
  • Lee, Jong-Soo (Department of Biomedicinal Science and Biotechnology, Paichai University)
  • 한상민 (배재대학교 바이오.의생명공학과) ;
  • 이상엽 (배재대학교 바이오.의생명공학과) ;
  • 김하근 (배재대학교 바이오.의생명공학과) ;
  • 이종수 (배재대학교 바이오.의생명공학과)
  • Received : 2017.05.10
  • Accepted : 2017.05.20
  • Published : 2017.06.01
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Abstract

We isolated 120 strains of wild yeasts from the water and riverside soils of Daejeoncheon and Gapcheon in Daejeon, Korea. We identified Debaryomyces udenii JSF601, Kazachstania telluris JSF602, Trichosporon faecale JSF614, Candida infanticola WJSL0039, Candida palmioleophila WJSL0048, Pichia spartinae WJSL0087, and Trichosporon coprophilum WJSL0093 from Daejeoncheon, and Leucosporidium golubevii WJSL0108 and Ustilentyloma graminis WJSL0118 from Gapcheon, as newly recorded yeast strains in Korea and investigated their microbiological characteristics. All of these previously unrecorded yeasts were oval- or ellipsoidal-shaped with ascospores, except C. infanticola WJSL0039, C. palmioleophila WJSL0048, and D. udenii JSF601. L. golubevii WJSL0108 and U. graminis WJSL0118 grew in vitamin-free medium, and C. infanticola WJSL0039 was halotolerant and grew in 10% NaCl-containing YPD broth. K. telluris JSF602 and P. spartinae WJSL0087 were thermophilic yeasts, which grew at $37^{\circ}C$.

대전광역시의 대전천과 갑천의 물과 주변토양들로부터 분리한 야생효모 중 대전천에서 분리한 Debaryomyces udenii JSF601, Kazachstania telluris JSF602와 Tricosporon faecale JSF614, Candida infanticola WJSL0039, Candida palmioleophila WJSL0048, Pichia spartinae WJSL0087, Trichosporon coprophilum WJSL0093 등 7균주들과 갑천에서 분리한 Leucosporidium golubevii WJSL0108과 Ustilentyloma graminis WJSL0118의 야생효모들이 국내 미기록 효모 균주들로 최종 선별 하여 이들의 형태학적, 배양학적 특성 등을 조사하였다. 대전천에서 분리, 선별한 국내 미기록 균주들은 구형~타원형으로 Pichia spartinae WJSL0087, Kazachstania telluris JSF602, Tricosporon faecale JSF614와 Trichosporon coprophilum WJSL0093들은 자낭포자와 의균사를 형성하였다. Candida infanticola WJSL0039는 10% NaCl을 함유한 YPD 배지에서 생육하는 호염성 효모이었고 Pichia spartinae WJSL0087는 $37^{\circ}C$에서 생육하는 고온성 효모이었다. 갑천에서 분리, 선별한 국내 미기록 효모들은 모두 구형으로 자낭포자를 형성하였다. Ustilentyloma graminis WJSL0118 만이 의균사를 형성하였고 비타민을 첨가하지 않은 YPD 배지에서도 생육하였으며 $37^{\circ}C$에서 생육하는 고온성 효모이었다.

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