농약과학회지 (The Korean Journal of Pesticide Science)

  • 제16권4호
  • /
  • Pages.383-386
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  • 2012
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  • 1226-6183(pISSN)
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  • 2287-2051(eISSN)
한국농약과학회 (The Korean Society of Pesticide Science)
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방선균의 식물생육촉진 효과와 식물병원균에 대한 항균활성

Effects of Streptomyces spp. on Growth of Plants and Antifungal Activity of Plant Pathogens

  • 한지희 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 박경석 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 이상엽 (농촌진흥청 국립농업과학원 농업미생물과) ;
  • 김정준 (농촌진흥청 국립농업과학원 농업미생물과)
  • Han, Ji Hee (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Park, Kyung Seok (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Lee, Sang Yeob (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA) ;
  • Kim, Jeong Jun (Agricultural Microbiology Division, National Academy of Agricultural Science, RDA)
  • 투고 : 2012.11.14
  • 심사 : 2012.12.20
  • 발행 : 2012.12.31
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초록

비농경지의 식물 근권토양에서 식물체의 초기생육촉진 효과가 있는 방선균을 분리하였다. 분리된 미생물의 16S rDNA 염기서열을 분석한 결과 Streptomyces spp.로 동정되었다. Streptomyces griseus (MSS181), Streptomyces griseoaurantiacus (MSS269), Streptomyces microflavus (MSS275), Streptomyces herbaricolor (MSS276)의 배양액을 오이, 고추, 담배와 토마토의 생육초기단계에 관주 처리하여 식물체의 초장, 건조중량을 측정하였다. 방선균 처리에 의해 오이의 초장은 대조구에 비해 16-29% 증가하였으나 건조중량에는 통계적으로 유의한 차이가 없었다. 같은 방선균을 고추에 처리하였을 때 고추의 초장은 대조구에 비해 10-19%, 건조중량은 19-25% 증가하였다. 담배의 건조중량은 44-73% 증가하였고 토마토의 건조중량도 65-165% 증가하였다. 공시균주의 식물병원균에 대한 항균활성을 검정한 결과, MSS275의 Phytophthora capsici, Fusarium oxysporum, Rhizoctonia solani와 Sclerotinia sclerotiorum에 대한 강한 항균활성을 확인하였다.

Streptomyces spp. were isolated from rhizosphere in fallow lands. The Streptomyces spp. were identified as Streptomyces griseus (MSS181), Streptomyces griseoaurantiacus (MSS269), Streptomyces microflavus (MSS275), Streptomyces herbaricolor (MSS276) based on 16S rRNA gene sequences. Afterwards, cucumber, pepper, tobacco and tomato were drenched with the isolates at early growth stages and plant growth such as height and dry weight of plants was measured. By treatment of Streptomyce spp., plant height of cucumber was increased by 16-29% compared to the control, But there were no statistically significant differences in dry weight. When the same isolates were treated on chili-pepper, plant height and dry weight of chili-pepper were increased respectively by 10-19% and 19-25% compared to the control. The dry weight of tobacco and tomato were increased by 44-73% and 65-165%, respectively compared to the control. When antifungal activities of the isolates were tested against plant pathogenic fungi, Streptomyces microflavus (MSS275) effectively inhibited the mycelial growth of Phytophthora capsici, Fusarium oxysporum, Rhizoctonia solani and Sclerotinia sclerotiorum.

키워드

참고문헌

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피인용 문헌

  1. 친환경 잔디관리를 위한 가축분퇴비 중 기능성미생물의 분리 및 선발 vol.6, pp.2, 2012, https://doi.org/10.5660/wts.2017.6.2.157