Search for dissertations about: "thesis in Bacillus thuringiensis"

Showing result 1 - 5 of 9 swedish dissertations containing the words thesis in Bacillus thuringiensis.

  2. 1. Virulence determinants of the insect pathogen Bacillus thuringiensis; : Molecular characterization of flagellins and the virulence protease immune inhibitor A

    Author : Ann Lövgren; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mikrobiologi; Microbiology;

    Abstract : Bacillus thuringiensis (Bt) is a motile, Gram positive, rod-shaped and spore-forminginsect pathogenic bacterium found on plants and in soil. The main insecticidal activityresides in a proteinacious crystal inclusion body (the S-endotoxin), but also the sporesare important for lethality. READ MORE

  4. 2. Development of systems for genetic exchange in the insect pathogenic bacterium Bacillus thuringiensis

    Author : Ritva Landén; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 3. Electric DNA arrays for determination of pathogenic Bacillus cereus

    Author : Yanling Liu; Sven-Olof Enfors; Helena Anderson; KTH; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Bacillus cereus; haemolysin; non-haemolytic enterotoxin; cytotoxin K-2; cereulide; toxin-coding genes; bacterial colony; electric DNA chip; ultrasonication; DNA fragmentation; Biochemistry; Biokemi;

    Abstract : Silicon-based electric chip arrays were developed for characterization of Bacillus cereus with respect to the capacity to produce toxins involved in food poisoning and foodborne infections. Bacteria of the B. cereus group contain different sets of four toxins encoded by eight genes. READ MORE

  6. 4. Microbial ecology and virulence gene studies of the insect pathogen Bacillus thuringiensis

    Author : Katarina Eskils; Malte Hermansson; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; mikrobiologi; Microbiology;

    Abstract : Bacillus thuringiensis (Bt) is a spore-forming bacterium used as a bio-pesticide due to its insect toxicity. Bt was used as a model organism in a risk evaluation project. Prevalence, survival and spreading, as well as genome stability, putative virulence genes, and gene transfer were examined. Field release of a marked Bt subsp. READ MORE

  7. 5. Long Term Studies of Insect Abundances in Temporary Wetlands in Relation to Hydrology, Predation and Bti

    Author : Thomas Persson Vinnersten; Jan O Lundström; Örjan Östman; William Walton; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; floodwater mosquitoes; mosquito control; predation; aquatic insects;

    Abstract : Long-term insect abundances have been studied to investigate factors structuring the insect communities of the temporary wetlands around the River Dalälven floodplain. In the wet meadows and swamps in the River Dalälven floodplains recurrent floods are the ultimate prerequisite for high production of floodwater mosquitoes. READ MORE