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AuthorNair, Kavita
AuthorAl-Thani, Roda
AuthorGinibre, Carole
AuthorChandre, Fabrice
AuthorAlsafran, Mohammed
AuthorJaoua, Samir
Available date2021-03-14T06:31:43Z
Publication Date2020-10-01
Publication NameHeliyon
Identifierhttp://dx.doi.org/10.1016/j.heliyon.2020.e05003
CitationNair, K., Al-Thani, R., Ginibre, C., Chandre, F., Alsafran, M., & Jaoua, S. (2020). Bacillus thuringiensis strains isolated from Qatari soil, synthesizing δ-endotoxins highly active against the disease vector insect Aedes aegypti Bora Bora. Heliyon, 6(10), e05003.
ISSN24058440
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85093669859&origin=inward
URIhttp://hdl.handle.net/10576/17898
Abstract© 2020 Bacillus thuringiensis (Bt) is a Gram-positive soil bacterium that has been recognized as an effective bioinsecticide active against plant, animal and human pathogenic and disease vector insects. During its sporulation phase, Bt produces crystals consisting of δ-endotoxins, which upon ingestion kill specifically insect larvae. Bt subsp. israelensis (Bti) is very active against dipteran insects. Bti based bioinsecticides are considered as a sustainable solution to control the Dipteran insects responsible of plant, animal and human diseases. In this study, Bti strains isolated from Qatar soil were analyzed for their insecticidal activities against the dipteran insect Aedes aegypti Bora Bora (Culicidae, Diptera) and for their δ-endotoxins yields per cell. Among the local Bti strains, four exceptional strains producing spherical crystals, were found to be more insecticidal than the reference strain Bti H14. When tested for their δ-endotoxin yield, the Bti QBT217 strain, producing typical spherical crystals and having the best insecticidal activity, was recognized as the best candidate strain for potential bioinsecticide production and biological control of dipteran insects, particularly the disease vector insect A. aegypti.
SponsorThis work was supported by the Qatar National Research Fund [GSRA2-1-0604-14015] and the publication of this article was supported by the Qatar National Library, both of which are members of the Qatar foundation.
Languageen
PublisherElsevier
SubjectAedes aegypti Bora Bora
Agricultural science
Bacillus thuringiensis subsp. israelensis
Bioassay
Environmental science
Epidemiology
Food safety
Infectious disease
Insecticidal
Microbiology
δ-endotoxin production
Agricultural science; Microbiology Environmental science; Food safety; Epidemiology Infectious disease
TitleBacillus thuringiensis strains isolated from Qatari soil, synthesizing δ-endotoxins highly active against the disease vector insect Aedes aegypti Bora Bora
TypeArticle
Issue Number10
Volume Number6
dc.accessType Open Access


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