Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Isolation of Endophytic Fungi Capable of Plant Growth Promotion from Monocots Inhabited in the Coastal Sand Dunes of Korea

사구에 서식하는 단자엽식물로부터 식물 생장 촉진 활성 내생 진균류의 분리

  • Khan, Sumera Afzal (Department of Life Science and Biotechnology, Kyungpook National University) ;
  • Hamayun, Muhammad (Department of Agronomy, Kyungpook National University) ;
  • Rim, Soon-Ok (Department of Life Science and Biotechnology, Kyungpook National University) ;
  • Lee, In-Jung (Department of Agronomy, Kyungpook National University) ;
  • Seu, Jong-Chul (Department of Geography Education, Daegu Catholic University) ;
  • Choo, Yeon-Sik (Department of Biology, Kyungpook National University) ;
  • Jin, Ing-Nyol (Department of Life Science and Biotechnology, Kyungpook National University) ;
  • Kim, Sang-Dal (Department of Applied Biotechnology, Yungnam University) ;
  • Lee, In-Koo (Department of Agricultural Chemistry, Kyungpook National University) ;
  • Kim, Jong-Guk (Department of Life Science and Biotechnology, Kyungpook National University)
  • ;
  • ;
  • 임순옥 (경북대학교 생명공학부) ;
  • 이인중 (경북대학교 식물생명과학) ;
  • 서종철 (대구가톨릭대학교 지리교육과) ;
  • 추연식 (경북대학교 생물학과) ;
  • 진익렬 (경북대학교 생명공학부) ;
  • 김상달 (영남대학교 자연자원대학) ;
  • 이인구 (경북대학교 응용생물화학) ;
  • 김종국 (경북대학교 생명공학부)
  • Published : 2008.10.30
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Abstract

Endophytic fungi predominantly inhabit grasses, and produce a variety of beneficial metabolites for plant growth, as well as help their hosts against pathogens and herbivores. Current study was focused on plant growth promoting activity of endophytic fungi inhabited in the roots of sand dune grasses. We collected 49 fungal isolates from the roots of four most common sand dune grasses and screened them for their growth promoting capacity. Results showed that 37 fungal isolates (75.5%) promoted plant height and shoot length of waito-c rice, 11 fungal isolates (22.5%) suppressed it, while 1 fungus (2%) showed no effect on the growth attributes. The fungal strain Gibberella fujikuroi, along with distilled water and Czapek broth medium, were taken as control for this experiment. It was concluded that a major proportion of endophytic fungi inhabited in the sand dune plants produce metabolites, and thus help in growth and development of the host plant.

내생성 진균류는 초본류의 식물체 내에 주로 서식하며, 식물의 병원균으로부터 숙주를 보호할 뿐만 아니라, 식물 생육에 유리하게 작용하는 다양한 대사 산물을 생산한다. 매우 흔히 접할 수 있는 사구식물의 뿌리로부터 49종의 균류를 분리하여 식물 생장 촉진 활성이 있는 균주를 선별하였다. 결과적으로 37균주(75.5%)는 awito-c 벼의 생육을 촉진하였으며, 11균주(22.5%)는 생육을 저해하였으며, 1균주(2%)는 생육에 아무런 영향을 미치지 않았다. Gibberella fujikuroi와 증류수 및 Czapek broth 배지를 control 로 사용하여 실험을 수행하였다. 결론적으로 사구식물 내생균류의 많은 부분은 숙주식물의 생육과 발달을 조장하는 대사 산물을 생산함을 알 수 있었다.

Keywords

References

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