Biological Control of Phytophthora Blight of Red-pepper Caused by Phytophthora capsici;I. Selection of a Bacterial Antagonist against Photophthora capsici

고추 역병균(疫病菌)(병원균: Phytophthora capsici)의 생물학적(生物學的) 방제(防除);I. 고추 역병(疫病) 길항균(拮抗菌)의 선발(選拔)

  • Chang, Yoon-Hee (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University) ;
  • Chang, Sang-Moon (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University) ;
  • Lee, Dong-Hoon (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University) ;
  • Choi, Jyung (Department of Agricultural Chemistry, College of Agriculture, Kyungpook National University)
  • 장윤희 (경북대학교 농과대학 농화학과) ;
  • 장상문 (경북대학교 농과대학 농화학과) ;
  • 이동훈 (경북대학교 농과대학 농화학과) ;
  • 최정 (경북대학교 농과대학 농화학과)
  • Published : 1996.09.30

Abstract

This study was attempted to select an antagonist against Phytophthora blight of red-pepper caused by Phytophthora capsici. The three strains, A-35, A-67 and A-183 were isolated from the rhizosphere in soil where red-pepper had been cultivated continuously for a long time, and the strain A-83 was estimated to be the strongest antagonist against P. capsici. The A-183 strain was identified as a strain of Pseudomonas sp., showing the maximum antifungal activity, when cultured at $30^{\circ}C$ for 5 days in the potato extract medium(pH 6.5) containing 2.0% mannitol and 0.3% peptone.

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