Overproduction of the Bacillus thuringiensis Vip3Aa16 toxin and study of its insecticidal activity against the carob moth Ectomyelois ceratoniae
المؤلف | Hanen, Boukedi |
المؤلف | Ben Khedher, Saoussen |
المؤلف | Triki, Nesrine |
المؤلف | Kamoun, Fakher |
المؤلف | Saadaoui, Imen |
المؤلف | Chakroun, Maissa |
المؤلف | Tounsi, Slim |
المؤلف | Abdelkefi-Mesrati, Lobna |
تاريخ الإتاحة | 2024-04-02T04:00:53Z |
تاريخ النشر | 2015-05-01 |
اسم المنشور | Journal of Invertebrate Pathology |
المعرّف | http://dx.doi.org/10.1016/j.jip.2015.03.013 |
الاقتباس | Boukedi, H., Khedher, S. B., Triki, N., Kamoun, F., Saadaoui, I., Chakroun, M., ... & Abdelkefi-Mesrati, L. (2015). Overproduction of the Bacillus thuringiensis Vip3Aa16 toxin and study of its insecticidal activity against the carob moth Ectomyelois ceratoniae. Journal of invertebrate pathology, 127, 127-129. |
الرقم المعياري الدولي للكتاب | 0022-2011 |
الملخص | The vip3Aa16 gene of Bacillus thuringiensis strain BUPM95 was cloned and expressed in Escherichia coli. Optimization of Vip3A16 protein expression was conducted using Plackett–Burman design and response surface methodology. Accordingly, the optimum Vip3A16 toxin production was 170μg/ml at 18h post-induction time and 39°C post-induction temperature. This corresponds to an improvement of 21times compared to the starting conditions. The insecticidal activity, evaluated against Ectomyelois ceratoniae, displayed an LC50 value of 40ng/cm2 and the midgut histopathology of Vip3Aa16 fed larvae showed vacuolization of the cytoplasm, brush border membrane destruction, vesicle formation in the apical region and cellular disintegration. |
راعي المشروع | This study was supported by grants from the Ministry of Higher Education and Scientific Research . |
اللغة | en |
الناشر | Elsevier |
الموضوع | Vip3Aa16 Bacillus thuringiensis Escherichia coli Toxicity Ectomyelois ceratoniae |
النوع | Article |
الصفحات | 127-129 |
رقم المجلد | 127 |
ESSN | 1096-0805 |
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