Electrophysiological effects of Bacillus sphaericus binary toxin on cultured mosquito cells

被引:29
作者
Cokmus, C
Davidson, EW
Cooper, K
机构
[1] ARIZONA STATE UNIV,DEPT ZOOL,TEMPE,AZ 85287
[2] ANKARA UNIV,DEPT BIOL,TR-06100 ANKARA,TURKEY
关键词
Bacillus sphaericus; binary toxin; Culex quinquefasciatus; electrophysiological;
D O I
10.1006/jipa.1997.4660
中图分类号
Q95 [动物学];
学科分类号
071002 ;
摘要
The electrophysiological effects of both trypsin-activated native and 42- and 51-kDa cloned binary toxins of Bacillus sphaericus were investigated on cultured Culex quinquefasciatus cells using the patch-clamp technique. Rates of reduction in whole-cell membrane resistance were correlated with increasing native toxin concentration. The 42- or 51-kDa cloned toxin alone at 50 IJ;mu g/ml reduced the resistance. Electrophysiological effects occurred before any changes were visible by phase-contrast microscopy. (C) 1997 Academie Press.
引用
收藏
页码:197 / 204
页数:8
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