Toxicity of several δ-endotoxins of Bacillus thuringiensis against Helicoverpa armigera (Lepidoptera: Noctuidae) from Spain

被引：41

作者：

Avilla, C

Vargas-Osuna, E

González-Cabrera, J

Ferré, J

González-Zamora, JE

机构：

[1] Univ Sevilla, Escuela Univ Ingn Tecn Agr, Dept Ciencias Agroforestales, E-41013 Seville, Spain

[2] Univ Cordoba, Dept Ciencias & Recursos Agr & Forestales, E-14080 Cordoba, Spain

[3] Univ Valencia, Fac CC Biol, Dept Genet, E-46100 Burjassot, Spain

来源：

JOURNAL OF INVERTEBRATE PATHOLOGY | 2005年 / 90卷 / 01期

关键词：

Bacillus thuringiensis; Helicoverpa armigera; microbial insect control; cotton pests; cry toxins; growth inhibition; ICP;

D O I：

10.1016/j.jip.2005.04.003

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

Toxicity and larval growth inhibition of I I 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 mu g/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. (c) 2005 Elsevier Inc. All rights reserved.

引用

页码：51 / 54

页数：4

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