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Two bacillus sphaericus binary toxins share the midgut receptor binding site: implications for resistance of culex pipiens complex (diptera : culicidae) larvae

文献类型:期刊论文

作者Silva, MHNL; de Oliveira, CMF; Regis, L; Yuan, ZM; Rico, CM; Nielsen-LeRoux, C
刊名Fems microbiology letters
出版日期2004-12-15
卷号241期号:2页码:185-191
关键词Culex pipiens Bacillus sphaericus Binary toxin Mode of action Resistance to bacterial toxins
ISSN号0378-1097
DOI10.1016/j.femsle.2004.10.018
通讯作者Silva, mhnl(mhneves@cpqam.fiocruz.br)
英文摘要This work demonstrates that bin i and bin2 toxins, produced by bacillus sphaerieus strains iab59 and 2362, respectively, share a binding site in midgut brush border membranes (bbmf) from culex pipiens complex larvae. however, a colony selected with strain iab59, displaying a resistance ratio of only 42-fold to iab59, but a 162,000-fold resistance to strain 2362, was found to miss receptors for bin2 in the bbmf. this correlates with results showing that bin1, produced in strain iab59, failed to bind specifically to bbmf from other colony highly resistant to strain 2362. data indicate the loss of the bbmf bound receptor as a general mechanism of resistance to binary toxins in mosquito. (c) 2004 federation of european microbiological societies. published by elsevier b.v. all rights reserved.
WOS关键词BRUSH-BORDER MEMBRANES ; QUINQUEFASCIATUS DIPTERA ; MOSQUITOCIDAL TOXIN ; LARVICIDAL TOXIN ; CROSS-RESISTANCE ; CRYSTAL TOXIN ; URBAN AREA ; STRAINS ; ACTIVATION ; GENE
WOS研究方向Microbiology
WOS类目Microbiology
语种英语
WOS记录号WOS:000226174000009
出版者ELSEVIER SCIENCE BV
URI标识http://www.irgrid.ac.cn/handle/1471x/2376147
专题武汉病毒研究所
通讯作者Silva, MHNL
作者单位1.Fiocruz MS, Dept Entomol, Ctr Pesquisas Aggeu Magalhaes, BR-50670420 Recife, PE, Brazil
2.Chinese Acad Sci, Wuhan Inst Virol, Wuhan 430071, Peoples R China
3.Inst Pasteur, Unite Bacteries & Champignons Entomopathogenes, F-75724 Paris, France
推荐引用方式
GB/T 7714
Silva, MHNL,de Oliveira, CMF,Regis, L,et al. Two bacillus sphaericus binary toxins share the midgut receptor binding site: implications for resistance of culex pipiens complex (diptera : culicidae) larvae[J]. Fems microbiology letters,2004,241(2):185-191.
APA Silva, MHNL,de Oliveira, CMF,Regis, L,Yuan, ZM,Rico, CM,&Nielsen-LeRoux, C.(2004).Two bacillus sphaericus binary toxins share the midgut receptor binding site: implications for resistance of culex pipiens complex (diptera : culicidae) larvae.Fems microbiology letters,241(2),185-191.
MLA Silva, MHNL,et al."Two bacillus sphaericus binary toxins share the midgut receptor binding site: implications for resistance of culex pipiens complex (diptera : culicidae) larvae".Fems microbiology letters 241.2(2004):185-191.

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来源:武汉病毒研究所

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