Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Studies on the Development of the Bacillus thuringiensis is Pesticide - Conditions of delta- endotoxin production by B. thuringiensis serovar kurstaki-

Bacillus thuringiensis 살충제 개발에 관한 연구 -B. thuringiensis serovar kurstaki 내독소 생산 배지조건-

  • 이형환 (건국대학교 생물학과 유전공학연구소) ;
  • 현병윤 (건국대학교 생물학과 유전공학연구소) ;
  • 오창근 (건국대학교 생물학과 유전공학연구소)
  • Published : 1986.06.01
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Abstract

The compositions of the four madia and their pHs for delta endotoxin production by B. thuringiensis serovar kurstaki 3a3b were examined. In the M-4 media out of the 4 media at pH8, the production of the endotoxin and spore formation were maximal. The mean generation times of the bacterium were 53.4 minutes in the M-1 media, 98 in the M-2, 132 in the M-3, and 127.5 in the M-4. The proper pHs of the media for the endotoxin production appeared to be pH 7 to 8. In the M-4 media, the lag time lasted about 5 hours.

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