Korean Journal of Microbiology (미생물학회지)

The Microbiological Society of Korea (한국미생물학회)
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Microbial community structure analysis from Jeju marine sediment

제주도 인근 해양퇴적물 내의 미생물 군집 구조분석

  • Koh, Hyeon Woo (Department of Biology, Jeju National University) ;
  • Rani, Sundas (Department of Biology, Jeju National University) ;
  • Hwang, Han-Bit (Department of Biology, Jeju National University) ;
  • Park, Soo-Je (Department of Biology, Jeju National University)
  • Received : 2016.07.07
  • Accepted : 2016.08.08
  • Published : 2016.09.30
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Abstract

In this study, the structure and diversity of bacterial community were investigated in the surface and subsurface marine sediments using a NGS method (i.e. illumina sequencing technology). The bacterial community in the surface was distinct from that in the subsurface of marine sediment; with the exception of the phylum Proteobacteria, the relative abundance of Bacteroides phylum were higher in the surface than subsurface, whereas the sequences affiliated to the phyla Chloroflexi and Acidobacteria were relatively more copious in the subsurface than surface sediment. Moreover, interestingly, we observed that the phyla Nitrospinae and Nitrospirae contribute to nitrogen cycle in the marine sediment. This study may present the possibility for the presence of novel microorganisms as unexplored sources and provide basic information on the microbial community structure.

본 연구에서는 차세대염기서열분석 기법을 활용하여 제주도 인근 해양퇴적물의 상층부와 하층부내의 미생물 군집구조와 다양성을 조사하였다. 상층부와 하층부의 미생물 군집구조는 상이하였으며, Proteobacteria 문을 제외하고, 상층부에서는 Bacteroides 문이, 하층부에서는 Chloroflexi와 Acidobacteria 문이 각각 우점하는 것으로 확인되었다. 또한, 흥미롭게도 질소순환에 관여하는 것으로 알려진 Nitrospinae와 Nitrospirae 문도 서식하고 있음이 관찰되었다. 본 연구를 통하여, 아직 발굴되지 않은 새로운 미생물의 자원으로서의 가능성과 해양퇴적물내의 기본적인 정보를 제공할 수 있을 것으로 기대한다.

Keywords

References

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