State;
Key;
Laboratory;
for;
Biology;
of;
Plant;
Diseases;
and;
Insect;
Pests~Institute;
of;
Plant;
Protection;
Chinese;
Academy;
of;
Agricultural;
Sciences;
Beijing;
100193;
P.R.China;
活性片段; 毒素; 小菜蛾幼虫; 苏云金芽孢杆菌; 氨基酸残基; 大肠杆菌; 杀虫活性; 阳性对照;