The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Comparative Analysis of Endophytic Fungi Isolated from Dominant Hydrophytes in Junam and Dongpan Wetland

주남저수지와 동판저수지의 수생식물에서 분리된 내생균류의 비교 분석

  • You, Young-Hyun (School of Life Science, Kyungpook National University) ;
  • Park, Jong Myong (School of Life Science, Kyungpook National University) ;
  • Han, Kyung-Sook (Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Park, Jong-Han (Horticultural & Herbal Crop Environment Division, National Institute of Horticultural & Herbal Science, RDA) ;
  • Kim, Jong-Guk (School of Life Science, Kyungpook National University)
  • 유영현 (경북대학교 생명과학부) ;
  • 박종명 (경북대학교 생명과학부) ;
  • 한경숙 (국립원예특작과학원 원예특작환경과) ;
  • 박종한 (국립원예특작과학원 원예특작환경과) ;
  • 김종국 (경북대학교 생명과학부)
  • Received : 2015.06.11
  • Accepted : 2015.06.17
  • Published : 2015.06.30
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Abstract

Hydrocharis dubia Backer and Salvinia natans All. were sampled from the Junam and Dongpan reservoirs, representative freshwater wetlands of Korea. A total of 19 endophytic fungal strains were isolated from hydrophytes native to the Junam wetlands and 5 strains were isolated from the Dongpan wetlands. Depending on phylogenetic analysis based on internal transcribed spacer (ITS) region, strains from Junam belonged to 11 genera and from Dongpan belonged to 5 genera. Fusarium, Phoma and Talaromyces were commonly distributed genera from two wetlands. The fungal diversity index showed clear differences between each wetlands or each host hydrophyte. Above all, the highest diversity value was observed from Salvinia natans All., which have been reported as promising biological resources as eutrophication controller in environmental ecology.

대표적인 담수습지인 경상남도 창원시 주남저수지와 동판저수지에서 우점하는 수생식물종인 자라풀 및 생이가래를 채집하였다. 주남저수지의 자생식물 뿌리에서 19균주와 동판저수지의 자생식물 뿌리에서 9균주를 순수분리 하였다. 이들 내생균류들의 internal transcribed spacer (ITS) 영역 염기서열을 분석하여 계통수를 작성한 결과 분리된 28균주는 주남저수지의 경우 11속, 동판저수지의 경우 5속에 속하는 것으로 확인되었으며, 두 습지에서 모두 13속의 내생균류가 분리되었다. 이들 중 담수습지별로 공통적으로 분리된 균주는 Fusarium, Phoma 및Talaromyces속으로 확인되었다. 담수습지 및 식물종별 내생균류의 다양성을 분석하였을 때 각각 상이한 지수를 보였으며, 그들 중 환경생태학적으로 중요한 위치를 차지하는 생이가래가 높은 지수를 나타내었다.

Keywords

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