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AuthorBenfarhat-Touzri, D.
AuthorBen Amira, A.
AuthorBen khedher, S.
AuthorGivaudan, A.
AuthorJaoua, S.
AuthorTounsi, S.
Available date2016-01-03T10:32:18Z
Publication Date2014-11
Publication NameJournal of Basic Microbiologyen_US
CitationBenfarhat-Touzri, D., Amira, A. B., khedher, S. B., Givaudan, A., Jaoua, S. and Tounsi, S. (2014), Combinatorial effect of Bacillus thuringiensis kurstaki and Photorhabdus luminescens against Spodoptera littoralis (Lepidoptera: Noctuidae). J. Basic Microbiol., 54: 1160–1165
ISSN1521-4028
URIhttp://dx.doi.org/10.1002/jobm.201300142
URIhttp://hdl.handle.net/10576/4052
AbstractSpodoptera littoralis, one of the major pests of many important crop plants, is more susceptible to Bacillus thuringiensis aizawai delta-endotoxins than to those of Bacillus thuringiensis kurstaki. Within the framework of the development of efficient bioinsecticides and the prevention against insect resistance, we tested the effect of mixing B. thuringiensis kurstaki delta-endotoxins and Photorhabdus luminescens cells on S. littoralis growth. The obtained results showed that the growth inhibition of this insect was more effective when B. thuringiensis kurstaki spore-crystal mixture and Photorhabdus luminescens cells were used in combination. Furthermore, this synergism is mainly due to the presence of Cry1Ac, which is one of the three delta-endotoxins that form the crystal of B. thuringiensis kurstaki strain BNS3 in addition to Cry1Aa and Cry2Aa. This work shows a possibility to use B. thuringiensis as a delivery means for Photorhabdus bacteria in order to infect the insect hemocoel and to reduce the risk of developing resistance in the target organism.
Languageen
PublisherWILEY-VCH
SubjectBacillus thuringiensis
SubjectCry toxins
SubjectPhotorhabdus luminescens
SubjectSpodoptera littoralis
SubjectToxicit
TitleCombinatorial effect of Bacillus thuringiensis kurstaki and Photorhabdus luminescens against Spodoptera littoralis (Lepidoptera: Noctuidae).
TypeArticle
Pagination1160–1165
Issue Number11
Volume Number54


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