苏云金芽孢杆菌几种δ-内毒素对西班牙棉铃虫（鳞翅目：夜蛾科）的毒性
Toxicity of several delta-endotoxins of Bacillus thuringiensis against Helicoverpa armigera (Lepidoptera: Noctuidae) from Spain.
作者信息
Avilla C, Vargas-Osuna E, González-Cabrera J, Ferré J, González-Zamora J E
机构信息
Departamento de Ciencias Agroforestales, Escuela Universitaria de Ingeniería Técnica Agrícola, Universidad de Sevilla, Carretera de Utrera, km 1. E-41013 Sevilla, Spain.
出版信息
J Invertebr Pathol. 2005 Sep;90(1):51-4. doi: 10.1016/j.jip.2005.04.003.
Toxicity and larval growth inhibition of 11 insecticidal proteins of Bacillus thuringiensis were evaluated against neonate larvae of Helicoverpa armigera, a major pest of important crops in Spain and other countries, by a whole-diet contamination method. The most active toxins were Cry1Ac4 and Cry2Aa1, with LC50 values of 3.5 and 6.3 microg/ml, respectively. At the concentrations tested, Cry1Ac4, Cry2Aa1, Cry9Ca, Cry1Fa1, Cry1Ab3, Cry2Ab2, Cry1Da, and Cry1Ja1, produced a significant growth inhibition, whereas Cry1Aa3, Cry1Ca2, and Cry1Ea had no effect.
采用全饲料污染法，对苏云金芽孢杆菌的11种杀虫蛋白针对棉铃虫初孵幼虫的毒性和幼虫生长抑制作用进行了评估，棉铃虫是西班牙和其他国家重要作物的主要害虫。活性最高的毒素是Cry1Ac4和Cry2Aa1，其LC50值分别为3.5和6.3微克/毫升。在测试浓度下，Cry1Ac4、Cry2Aa1、Cry9Ca、Cry1Fa1、Cry1Ab3、Cry2Ab2、Cry1Da和Cry1Ja1产生了显著的生长抑制作用，而Cry1Aa3、Cry1Ca2和Cry1Ea则没有效果。
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