Toxicity of six Bacillus thuringiensis Cry proteins against the olive moth Prays oleae

被引：0
|
作者：
Perez-Guerrero, Sergio [1 ]
Aldebis, Hani K. [1 ]
Vargas-Osuna, Enrique [1 ]
机构：
[1] Univ Cordoba, Dept Ciencias & Recursos Agr & Forestales, Area Entomol Agroforestal, ETSIAM, E-14071 Cordoba, Spain
来源：
BULLETIN OF INSECTOLOGY | 2012年 / 65卷 / 01期
关键词：
delta-endotoxins; crystals; spores; pest control; mortality; bioassay; HELICOVERPA-ARMIGERA LEPIDOPTERA; DELTA-ENDOTOXINS; PLUTELLA-XYLOSTELLA; DIAMONDBACK MOTH; CROSS-RESISTANCE; CRYSTAL PROTEINS; SUBSP KURSTAKI; NOCTUIDAE; BINDING; TOXINS;
D O I：
暂无
中图分类号：
Q96 [昆虫学];
学科分类号：
摘要：
The activity of six Bacillus thuringiensis (Berliner) Cry proteins against third-instar Prays oleae (Bernard) larvae was examined. Five of the toxins tested (Cry1Aa, Cry1Ab, Cry1Da, Cry1Ja and Cry2Aa) proved active against P. oleae, the highest larval percentage mortality being obtained with by Cry2Aa and Cry1Ja. LC50 values were 0.12, 1.2 and 6.17 mu g/ml for Cry1Ca, Cry2Aa and Cry ha, respectively. Relative potencies were calculated and Cry1Ca was found to be significantly (44-fold) more toxic than Cry1Ja.
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页码：119 / 122
页数：4
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