Sökning: "opportunists"

Hittade 4 avhandlingar innehållade ordet opportunists.

  1. 1. Bacteria that escape predation : waterborne pathogens and their relatives

    Författare :Karolina I. A. Eriksson; Agneta Andersson; Johanna Thelaus; Jon Ahlinder; David Sundell; Klaus Jürgens; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; bacterial pathogens; protozoa; predation resistance; aquatic microbiology; climate change; opportunists; humification; iron; environmental science; miljövetenskap; mikrobiologi; Microbiology;

    Sammanfattning : The hidden presence of opportunistic bacterial pathogens in the environment evokes concerns about emerging diseases, especially in the light of climate change. The co-evolution of bacteria and their predators (protozoa) has led to bacterial defence strategies of which some contribute to the ability of bacteria to cause disease. LÄS MER

  3. 2. Influence of gut microbiota on xenobiotic toxicity in a Caenorhabditis elegans model with a focus on arsenic and PFAS

    Författare :Jagadish Mangu; Jana Jass; Abul Mandal; Nektarios Tavernarakis; Örebro universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; C. elegans; physiological responses; gut microbe models; arse-nite; arsenate; PFAS; PFOS;

    Sammanfattning : Exposure to environmental toxins presents a hazard to humans. Inorganic metalloid- arsenic (As), organic chemicals- per and poly-fluoroalkyl substances (PFAS) are frequently detected in the environment. Exposure to As and PFAS is associated with multiple adverse effects in humans and animals. LÄS MER

  4. 3. Activation of neutrophils by mycobacteria and mycobacterial components

    Författare :Jenny Fäldt; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; human neutrophils; mycobacteria; oxygen radicals; cytokines; mycobacterial glycolipids; priming;

    Sammanfattning : The genus Mycobacterium includes free-living saprophytes, opportunists, and human pathogens.Mycobacterium tuberculosis, the organism causing tuberculosis, as well as other pathogenicmycobacteria can survive and multiply inside phagocytic cells, but the underlying mechanisms areonly partly understood. LÄS MER

  5. 4. Quinolone resistance in Bacteroides fragilis and Pseudomonas aeruginosa, two opportunistic pathogens

    Författare :Herin Oh; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Quinolone; resistance; B. fragilis; P. aeruginosa; topoisomerase; efflux;

    Sammanfattning : Opportunistic pathogens can cause infections in case of structural or functional defects in the host. Examples of Gram-negative opportunists are the Bacteroides fragilis group, anaerobic, non-spore forming rods and the aerobic, non-fermentative rod Pseudomonas aeruginosa. LÄS MER