Schesser J H, Bulla L A
Appl Environ Microbiol. 1978 Jan;35(1):121-3. doi: 10.1128/aem.35.1.121-123.1978.
Toxicity of Bacillus thuringiensis spores to the tobacco hornworm, Manduca sexta, is described. The numbers of larvae killed were in relation to spore dry weight. At a surface application of 6.8 ng/cm2, there was an 85 percent survival, but less than 50 percent survived at 68.2 ng/cm2. Striking similarity of spores to parasporal crystals is revealed by slope of mortality curves, inhibition of stadial growth, and 50 percent lethal dose values based on protein content.
描述了苏云金芽孢杆菌孢子对烟草天蛾（Manduca sexta）的毒性。幼虫死亡数量与孢子干重有关。表面施用量为6.8纳克/平方厘米时，存活率为85%，但在68.2纳克/平方厘米时，存活率不到50%。死亡率曲线斜率、龄期生长抑制以及基于蛋白质含量的半数致死剂量值显示，孢子与伴孢晶体具有惊人的相似性。
