The Korean Journal of Mycology (한국균학회지)

The Korean Society of Mycology (한국균학회)
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Diversity of Arbuscular Mycorrhizal Fungi in Rhizospheres of Camellia japonica and Neighboring Plants Inhabiting Wando of Korea

전남 완도에 서식하는 동백나무와 그 주변 식물의 근권에 분포하는 수지상균근균의 다양성

  • Lee, Eun-Hwa (Department of Biology Education, Korea National University of Education) ;
  • Ka, Kang-Hyeon (Division of Wood Chemistry and Microbiology, Korea Forest Research Institute) ;
  • Eom, Ahn-Heum (Department of Biology Education, Korea National University of Education)
  • Received : 2014.03.04
  • Accepted : 2014.03.24
  • Published : 2014.03.31
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Abstract

In this study, the community structures of arbuscular mycorrhizal fungi (AMF) in rhizospheres of Camellia japonica and neighboring woody plants in Wando, Korea were investigated. Rhizospheres of C. japonica and other woody plants were dominated by the same species, Acaulospora mellea, but Shannon's index, species richness and total spore numbers of the AMF communities were higher in non-C. japonica than in neighboring plants. Regardless of host plant species, the frequency of A. mellea was significantly high comparing with other AMF species. The community similarity of AMF within C. japonica was significantly higher than between C. japonica and neighboring plants or neighboring plants (p<0.005). Results showed that AM fungal communities in rhizospheres of C. japonica have unique community structure and are different from that of neighboring host plants, suggesting that community structure of AMF could be influenced by host plant species.

완도의 동백나무 자생지역에서 동백나무의 근권과 주변 일반 식물의 근권 토양을 수집하여 토양 내 수지상균근균(AMF)의 다양성 및 군집 구조를 확인하였다. 분석 결과 두 근권은 모두 Acaulospora mellea 포자로 우점되어 있지만 동백나무 근권에 비해 일반 기주식물의 근권에서 AMF종 다양성 지수와 종 수 및 포자 수가 더 높게 나타나는 경향을 확인하였다. 기주식물의 종류에 상관없이 A. mellea가 높은 빈도로 출현하는 것으로 보아 A. mellea가 다른 AMF종에 비해 산림 토양 및 목본 식물에 특이적으로 적응된 것으로 생각된다. 두 근권에서 발견된 AMF 군집간의 유사도를 분석한 결과 동백나무의 근권에서 발견된 AMF 군집간의 유사도가 동백나무 근권 AMF 군집 일반 기주식물 근권 AMF 군집 간의 유사도나 일반 기주식물 근권 AMF 군집간의 유사도에 비해 더 높은 것으로 나타났다. 이는 동백나무 근권이 다른 일반 기주식물의 근권과는 다른 독특한 AMF 군집 구조를 형성하고 있으며, 식물의 근권 주변의 AMF 군집은 기주식물에 의해 유의미한 수준으로 달라질 수 있음을 보여준다.

Keywords

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