A5024060652- Insect Resistance and Genetics
- Insect and Pesticide Research
- Entomopathogenic Microorganisms in Pest Control
- Insect Pest Control Strategies
- Insect-Plant Interactions and Control
- Plant and animal studies
- Insect symbiosis and bacterial influences
- Wheat and Barley Genetics and Pathology
- Studies on Chitinases and Chitosanases
- Viral Infectious Diseases and Gene Expression in Insects
- thermodynamics and calorimetric analyses
- Insect and Arachnid Ecology and Behavior
- Nematode management and characterization studies
- Plant Virus Research Studies
- Insect Utilization and Effects
Centre of Biotechnology of Sfax
2010-2022
University of Sfax
2012-2014
Université de Picardie Jules Verne
2004-2005
Laboratoire d’Ethologie Expérimentale et Comparée
2004-2005
Institut National de la Recherche Agronomique
2003
Cotton-melon aphid Aphis gossypii (Glover) causes severe damage mainly to cucurbits. Twenty-two Beauveria sp. isolates were simultaneously assessed for their pathogenicity and heat tolerance. The selected identified molecularly characterized in terms of conidial germination rate, mycelial growth, yield endophytic activity.Screening bioassays showed that the B. bassiana B3, B7, B9 B12 most toxic, inducing mortality equal or slightly higher than commercialized strain BNat (70.7%). Median...
Abstract Transgenesis developed in the last 20 years offers new possibilities for crop protection. The transgenic process, however, requires use of marker fusion genes to select and visualize transformed tissues. Although expression products these are stably expressed crops, little attention has been given assess eventual risks recombinant proteins on phytophage populations. Three independent potato ( Solanum tuberosum ) clones from cultivar Désirée (DG5, DG18, DG20) carrying commonly used...
Spodoptera littoralis (Boisduval) larvae are known by their susceptibility to Bacillus thuringiensis subsp. aizawai strains. In order prevent the appearance of B. (Bt) resistance and develop economical Bt-based biopesticides, selection characterisation a isolate toxic against S. overproducing δ-endotoxins were investigated.Among 124 Tunisian isolates assessed larvae, four showed toxicity similar higher than strain HD133 kurstaki HD1 respectively. The plasmid pattern selected was that HD1....
Abstract In this study, we present the selection and characterization of Bacillus thuringiensis strains toxic against pyralid pests stored products. Among 201 new B. isolated from different countries, two ( BLB 249 384) showed greater toxicity than commercialized strain kurstaki HD 1 Ephestia kuehniella larvae. Morphological, molecular biochemical investigations revealed that these were similar to but presented cry gene content. Additional bioassays only displayed higher Plodia...
Bacillus thuringiensis is a bacterium with unusual properties that make it useful for pest control in ecoagriculture. It can form parasporal crystal containing polypeptides (also called delta-endotoxins). These entomopathogenic toxins are made during the stationary phase of bacterial growth cycle and were initially characterized as an insect pathogen. Nowadays, use saturated two-level designs very popular. This method especially used industrial applications where cost experiments expensive....