Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Selection and Antifungal Activity of Antagonistic Bacterium Pseudomonas sp. 2112 against Red-Pepper Rotting Phytophthora capsici

생물방제균 Pseduomonas fluorescens 2112의 선발과 고추역병균에 대한 항진균성 길항작용

  • 이은탁 (영남대학교 자연자원대학 응용미생물학과) ;
  • 김상달 (영남대학교 자연자원대학 응용미생물학과)
  • Published : 2000.12.01
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Abstract

In order to select multifunctional powerful antagonistic biocontrol agent against red-pepper rotting fungi Phytophthora capsici, we isolated an indigenous antagonistic bacterium which produces antifungal substances and siderophores from a local soil of Kyongju, Korea. The isolated strain was identified as Pseudomonas fluorescens biotype F. The antibiotic produced from P. fluorescens 2112 inhibited hyphae growth and the zoospore germination of Phytophthora capsici. The favorable carbon, nitrogen source and salts for the production of antibiotic from P. fluorescens 2112 were glycerol, beef extract and LiCi at 1.0%, 0.5% and 5 mM, respectively. And antagonistic activity of P. fluorescens 2112 was confirmed against P. capsici in vivo.

Keywords

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