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AuthorAbdelkefi-Mesrati, Lobna
AuthorBoukedi, Hanen
AuthorDammak-Karray, Mariam
AuthorSellami-Boudawara, Tahya
AuthorJaoua, Samir
AuthorTounsi, Slim
Available date2015-12-24T05:26:35Z
Publication Date2011-02
Publication NameJournal of Invertebrate Pathologyen_US
Identifierhttp://dx.doi.org/10.1016/j.jip.2010.10.002
Citation"Study of the Bacillus thuringiensis Vip3Aa16 histopathological effects and determination of its putative binding proteins in the midgut of Spodoptera littoralis", Abdelkefi-Mesrati, Lobna; Boukedi, Hanen; Dammak-Karray, Mariam; Sellami-Boudawara, Tahya; Jaoua, Samir et al, (2011) Journal of Invertebrate Pathology, vol. 106 (2) p. 250-254
ISSN0022-2011
ISSN1096-0805 (online)
URIhttp://hdl.handle.net/10576/3981
AbstractThe bacterium Bacillus thuringiensis produces, at the vegetative stage of its growth, Vip3A proteins with activity against a broad spectrum of lepidopteran insects. The Egyptian cotton leaf worm (Spodoptera littoralis) is an important agricultural pest that is susceptible to the Vip3Aa16 protein of Bacillus thuringiensis kurstaki strain BUPM95. The midgut histopathology of Vip3Aa fed larvae showed vacuolization of the cytoplasm, brush border membrane destruction, vesicle formation in the apical region and cellular disintegration. Biotinylated Vip3Aa toxin bound proteins of 55- and 100-kDa on blots of S. littoralis brush border membrane preparations. These binding proteins differ in molecular size from those recognized by Cry1C, one of the very few Cry proteins active against the polyphagous S. littoralis. This result supports the use of Vip3Aa16 proteins as insecticidal agent, especially in case of Cry-resistance management.
SponsorMinistère de l’Enseignement Supérieur et de la Recherche Scientifique
Languageen
PublisherElsevier Inc.
SubjectBacillus thuringiensis
SubjectSpodoptera littoralis
SubjectVip3Aa16
SubjectActivation
SubjectHistopathological effect
SubjectMidgut putative receptors
TitleStudy of the Bacillus thuringiensis Vip3Aa16 histopathological effects and determination of its putative binding proteins in the midgut of Spodoptera littoralis
TypeArticle
Pagination250-254
Issue Number2
Volume Number106


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