Bacillus thuringiensis Cry3Aa toxin increases the susceptibility of Crioceris quatuordecimpunctata to Beauveria bassiana infection

被引：22

作者：

Gao, Yulin ^{[1
]}

Oppert, Brenda ^{[2
]}

Lord, Jeffrey C. ^{[2
]}

Liu, Chenxi ^{[1
]}

Lei, Zhongren ^{[1
]}

机构：

[1] Chinese Acad Agr Sci, Inst Plant Protect, State Key Lab Biol Plant Dis & Insect Pests, Beijing 100193, Peoples R China

[2] ARS, USDA, Ctr Grain & Anim Hlth Res, Manhattan, KS 66502 USA

来源：

JOURNAL OF INVERTEBRATE PATHOLOGY | 2012年 / 109卷 / 02期

关键词：

Beauveria bassiana; Bacillus thuringiensis; Cry3Aa toxin; Spotted asparagus beetle; Crioceris quatuordecimpunctata; FUNGUS METARHIZIUM-ANISOPLIAE; COLORADO POTATO BEETLE; BIOPESTICIDES; LEPIDOPTERA;

D O I：

10.1016/j.jip.2011.12.003

中图分类号：

Q95 [动物学];

学科分类号：

071002 ;

摘要：

The spotted asparagus beetle, Crioceris quatuordecimpunctata (Coleoptera: Chrysomelidae), is one of the most devastating pests of asparagus in China. Sprayed synthetic pesticides have been used to control C. quatuordecimpunctata damage, but they pose problems because of residues and harm to natural enemies. Neither the microbial coleopteran-specific toxin from Bacillus thuringiensis tenebrionis, Cry3Aa, nor the fungal pathogen Beauveria bassiana have sufficient activity to effectively control C. quatuordecimpunctata damage to asparagus. However, second instar C. quatuordecimpunctata larvae exposed to a sublethal dose of Cry3Aa toxin demonstrated significantly higher larval mortality when exposed to B. bassiana. Our results suggest that a combination of Cry3Aa and B. bassiana may be effective in reducing damage by C. quatuordecimpunctata larvae to asparagus. (C) 2011 Elsevier Inc. All rights reserved.

引用

页码：260 / 263

页数：4

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