Biological Control of Pseudomonas sp. for Erwinia rhapontici Causing Vegetables Root Rot

채소연부병균 Erwinia rhapontic 에 대한 Pseudomonas sp. 의 생물학적 억제

  • 김교창 (충북대학교 식품공학과) ;
  • 김도영 (충청전문대학 식품영양과) ;
  • 도대홍 (충청전문대학 식품가공과)
  • Published : 1994.02.01

Abstract

For Selection of powerful antagonistic bacteria for biological control of soil borne Erwinia rhapontici causing rot of the vegetables and fruit, excellent straints (S43, S62) were selected from rhizopere in vegetables root rot suppressive soil. Selected strains were identified to be Pseudomonas sp. with Apl 20NE kit tests. Optimum culture condition for the maximum production of antagonistic substance was determined , when isolate was cultured in 523 synthetic broth media at pH 7.0 and 30 during 3 days. Antagonistic substance productivity of isolated Pseudomonas sp. (S43, S62) in the fertilizer soil were increased to about 40-50% compared to that in the non fertilizer soil.

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