Sökning: "Endospores"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet Endospores.

  1. 1. KNOW YOUR ENEMY : Characterizing Pathogenic Biomaterials Using Laser Tweezers

    Författare :Tobias Dahlberg; Magnus Andersson; Krister Wiklund; Mikael Sjödahl; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Optical Tweezers; Laser Tweezers; Raman Spectroscopy; Bacterial Adhesion; Biophysics; Pili; Bacterial Spores; Endospores; Oocysts; Cryptosporidium; Optics; biology; biologi; fysik; Physics;

    Sammanfattning : Diseases caused by pathogenic agents such as bacteria and viruses result in devastating costs on personal and societal levels. However, it is not just the emergence of new diseases that is problematic. Antibiotic resistance among bacteria makes uncomplicated infections difficult and lethal. LÄS MER

  3. 2. Bacillus Cereus. Adhesion Ability to Biological and Non-Biological Surfaces, Enterotoxins, Characterization

    Författare :Annika Andersson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; characterization; Bacillus cereus; spores; adhesion; enterotoxin;

    Sammanfattning : The organism investigated in this thesis was Bacillus cereus, which is important as a food spoilage organism and as a pathogen. The adhesion of endospores to and the removal of endospores from siliconized glass surfaces were investigated to increase the knowledge of adhesion mechanisms and to improve the removal of endospores from surfaces. LÄS MER

  4. 3. On the role of penicillin-binding protein SpoVD in endospore cortex assembly

    Författare :Ewa Bukowska-Faniband; Molekylär cellbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sporulation; cortex; Bacillus subtilis; penicillin-binding proteins; SpoVD; peptidoglycan;

    Sammanfattning : Bacteria of the genera Bacillus and Clostridium can form endospores as a strategy to survive unfavourable environmental conditions. Endospore formation involves synthesis of cortex, a thick layer of modified peptidoglycan that surrounds the spore. LÄS MER

  5. 4. Adhesion Mechanisms of Bacterial Spores to Solid Surfaces

    Författare :Ulrika Husmark; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The initial adhesion of different Bacillus spores to solid surfaces was investigated. By changing environmental parameters and studying the subsequent adhesion, conclusions have been drawn concerning the different mechanisms responsible for adhesion. Bacillus species are common microorganisms and in food industry they are common food spoilers. LÄS MER

  7. 5. Studies on Thiol-Disulfide Oxidoreductases in Bacillus subtilis

    Författare :Mirja Carlsson Möller; Molekylär cellbiologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi; Microbiology; bacteriology; bacterial sporulation; endospore; thioredoxin; Thiol-disulfide oxidoreductase;

    Sammanfattning : Bacillus subtilis is a model organism for endospore-forming gram-positive bacteria. Endospores are formed in response to nutrient starvation. They can resist harsh environments and last for long periods of time. Once nutrients again become available, the endospore can germinate and the vegetative life cycle be resumed. LÄS MER