Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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A study of newly recorded genus and species for aerial cyanobacteria Wilmottia murrayi(Oscillatoriales, Cyanobacteria) in Korea

기중성 남세균, Wilmottia murrayi (Oscillatoriales, Cyanobacteria)의 국내 미기록속 및 미기록종에 대한 연구

  • Lee, Nam-Ju (Department of Life Science, College of Natural Science, Kyonggi University) ;
  • Seo, Yoseph (Department of Biotechnology, Sangmyung University) ;
  • Ki, Jang-Seu (Department of Biotechnology, Sangmyung University) ;
  • Lee, Ok-Min (Department of Life Science, College of Natural Science, Kyonggi University)
  • Received : 2019.07.15
  • Accepted : 2019.08.07
  • Published : 2019.09.30
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Abstract

Two aerophytic cyanobacteria from the rockwall of Haje port located in Geum river, Korea, were isolated in unialgal cultures and submitted to polyphasic evaluation. The filaments of the populations presented solitary or several to many parallel arranged. The straight trichomes were not attenuated with rounded apical cell. Phylogenetic analyses based on 16S rDNA sequences indicated that these populations formed the same clade with Wilmottia murrayi and had 99% or greater DNA similarity. Through the ultrastructure of the TEM, these populations showed parietal thylakoid arrangement, which coincides with family Coleofasciculaceae. From the above results, we reported the newly recorded genus Wilmottia, and species W. murrayi in Korea.

국내 금강수계의 하구역에 위치한 하제항 암벽으로부터 기중성 남세균이 채집되어, 단조류 배양되었다. 2개의 남세균 배양주로부터 형태적 형질과 TEM에 의한 세포 미세구조 특징을 관찰하였다. 또한 16S rDNA 염기서열을 규명하여 BLAST 검색, 염기서열 유사도, 유전거리 및 계통분석을 실시하였다. 국내 배양주는 Wilmottia murrayi와 계통학적으로 동일한 clade를 형성하였고, 99% 이상의 유사도를 나타냈다. TEM을 통한 세포 미세구조는 틸라코이드가 여러겹으로 세포막 주변에 분포하는 특징을 나타냄으로써 Coleofasciculaceae과의 특징과 일치하였다. 이상의 결과를 통해 W. murrayi를 국내 미기록속 및 미기록종으로 보고하였다.

Keywords

References

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