Microbiology and Biotechnology Letters (한국미생물·생명공학회지)

The Korean Society for Microbiology and Biotechnology (한국미생물·생명공학회)
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Characterization of a Mosquitocidal Delta-endotoxin from Bacillus thuringiensis subsp. guiyangiensis strain 21-2(H serotype 43)

모기 살충성 내독소를 생산하는 Bacillus thuringiensis subsp. guiyangiensis 21-2균주(H serotype 43)의 특성

  • 김위종 (동의대학교 자연과학대학 미생물학과) ;
  • 김광현 (동의대학교 자연과학대학 미생물학과)
  • Published : 1999.10.01
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Abstract

To prevent appearance of resistant mosquitoes against $\delta$-endotoxin of bacillus thuringiensis subsp. israelensis (Bti) in field, a mosquitocidal Bacillus thuringiensis strain 21-2(Bt21-2) producing a new type of $\delta$-endotoxin was isolated. The strain Bt 21-2 belongs to H serotype 43, B. thuringiensis subsp. guiyangiensis (Btg). The $\delta$-endotoxins from the strain Bt 21-2 and the strain Bti were a cuboid shape morphologically, but the $\delta$-endotoxin of the strain Bt 21-2 was composed of 150, 90 and 70kDa proteins on SDS-PAGE, and the antigenicity of $\delta$-endotoxin of the strain Bt 21-2 was different from that of the strain Bti on immunoblot. The $\delta$-endotoxin gene of the strain Bt 21-2 was not amplified with specific primers of $\delta$-endotoxin gene (cry4A and cry4B) of the strain Bti on PCR.

Keywords

References

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