Korean Journal of Microbiology (미생물학회지)

The Microbiological Society of Korea (한국미생물학회)
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Phylogenetic characteristics of actinobacterial population in bamboo (Sasa borealis) soil

조릿대 대나무림 토양 내 방선균군집의 계통학적 특성

  • Lee, Hyo-Jin (Institute of Microbial Ecology and Resources, Mokwon University) ;
  • Han, Song-Ih (Department of Microbial & Nano Materials, Mokwon University) ;
  • Whang, Kyung-Sook (Institute of Microbial Ecology and Resources, Mokwon University)
  • 이효진 (목원대학교 미생물생태자원연구센터) ;
  • 한송이 (목원대학교 미생물나노소재학과) ;
  • 황경숙 (목원대학교 미생물생태자원연구센터)
  • Received : 2016.02.17
  • Accepted : 2016.03.22
  • Published : 2016.03.31
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Abstract

In this study, a pyrosequencing was performed and analyzed to verify the phylogenetic diversity of actinomycetes in the bamboo (Sasa borealis) soil as a base study to obtain the genetic resources of actinomycetes. It was found that the rhizosphere soil had much various distribution in bacterial communities showing a diversity of 8.15 with 2,868 OTUs, while the litter layer showed a diversity of 7.55 with 2,588 OTUs. The bacterial community in the bamboo soil was composed of 35 phyla and the predominant phyla were Proteobacteria (51-60%), Bacteroidetes (16-20%), Acidobacteria (4-16%) and Actinobacteria (4-14%). In particular, Actinobacteria including Micromonosporaceae and Streptomycetaceae had a diverse distribution of actinomycetes within the six orders, 35 families and 121 genera, and it was characterized that about 83% of actinomycetes within Actinomycetales belonged to the 28 families. Among the dominant actinobacterial populations, Micromonosporaceae, Pseudonocardiaceae and Streptomycetaceae were representative family groups in the bamboo soils.

본 연구에서는 차세대 염기서열분석(pyrosequencing) 기술을 이용해 조릿대(Sasa borealis) 대나무림의 낙엽층과 근권 토양 내 주요 군집인 방선균군집의 계통학적 특성을 분석하여 방선균 유전자원 다양성 확보를 위한 기반 연구를 수행하고자 하였다. 낙엽층 시료 내 세균군집은 2,588 OTUs, 다양성 지수 7.55로 나타났으며, 근권토양 시료의 경우 2,868 OTUs, 다양성 지수 8.15로 다양한 세균군집이 균등하게 분포하고 있는 것으로 확인되었다. 대나무림 토양시료 내 세균군집은 총 35개의 문으로 구성되었으며, Proteobacteria (51-60%), Bacteroidetes (16-20%), Acidobacteria (4-16%) 그리고 Actinobacteria (4-14%) 계통군이 주요 세균군집으로 확인되었다. 특히, Actinobacteria은 총 6목 35과 121속의 다양한 방선균이 분포하였으며, 전체 방선균군집의 83%가 Actinomycetales 목으로 확인되었다. 이들 Actinomycetales 목은 28개 과로 구성되었으며, Micromonosporaceae, Pseudonocardiaceae 그리고 Streptomycetaceae는 조릿대 대나무림의 낙엽층과 근권토양에서 풍부도가 가장 높고 변이가 적은 대표 방선균군집으로 확인되었다.

Keywords

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