Somerville H J, Pockett H V
J Gen Microbiol. 1975 Apr;87(2):359-69. doi: 10.1099/00221287-87-2-359.
Spores of Bacillus thuringiensis contain a toxin active against lepidopterous larvae. This toxin can be solubilized by extraction with reagents which dissolve the protein crystal of B thuringiensis. It is inactivated by crystal-specific antiserum. Spores of Bacillus cereus contain a similar toxin although the specific activity is much lower than the spores of B. thuringiensis. The B. cereus toxin contains a single major polypeptidecomponent. Toxic activity can be solubliized from spores of both species by incubation with gut juices from Pieris brassicae.
苏云金芽孢杆菌的孢子含有一种对鳞翅目幼虫有活性的毒素。这种毒素可以通过用溶解苏云金芽孢杆菌蛋白质晶体的试剂提取来溶解。它会被晶体特异性抗血清灭活。蜡样芽孢杆菌的孢子含有一种类似的毒素，尽管其比活性远低于苏云金芽孢杆菌的孢子。蜡样芽孢杆菌毒素含有单一主要多肽成分。通过与粉纹夜蛾的肠液一起孵育，这两种菌的孢子中的毒素活性均可被溶解出来。
