Search for dissertations about: "virulence plasmid"

Showing result 1 - 5 of 20 swedish dissertations containing the words virulence plasmid.

  2. 1. Temperature-inducible and calcium-regulated proteins encoded by the virulence plasmid of Yersinia

    Author : Ingrid Bölin; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Yersinia; virulence plasmid; gene products; regulation; calcium; temperature; outer membrane proteins;

    Abstract : The pathogenic members of the genus Yersinia, Y. pseudotuberculosis, Y. pestis and Y. enterocolitica are transmitted from animals to man and may give rise to disease with a variety of symptoms. READ MORE

  4. 2. Controlling virulence in Yersinia pseudotuberculosis through accumulation of phosphorylated CpxR

    Author : Edvin Thanikkal; Matthew Francis; Andrew Darwin; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Y. pseudotuberculosis; CpxA; CpxR; invasin; RovA; RovM; T3SS; virulence; transcriptional regulation; molekylärbiologi; Molecular Biology; mikrobiologi; Microbiology;

    Abstract : Like many Gram-negative bacteria, the food-borne pathogen Yersinia pseudotuberculosis harbours different regulatory mechanisms to maintain an intact bacterial envelope especially during exposure to extracytoplasmic stress (ECS). The CpxA-CpxR two component regulatory system is one such ECS-responsive regulatory mechanism. READ MORE

  5. 3. 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

  6. 4. Molecular mechanism of plasmid copy number control in Yersinia

    Author : Tifaine Héchard; Helen Wang; Javier Pizarro-Cerda; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Yersinia pseudotuberculosis; plasmid copy number; T3SS; infection; ddPCR; Mikrobiologi; Microbiology;

    Abstract : The ability of pathogenic bacteria to cause disease depends on various virulence mechanisms. The three pathogenic species of Yersinia use a type III secretion system (T3SS) to translocate effector proteins into host cells and disrupt the immune system. This T3SS is encoded on a 70kb, low-copy, virulence plasmid. READ MORE

  7. 5. The Salmonella enterica virulence : its role in bacterial adaption to mammalian and protozoan cells

    Author : Dilek Tezcan-Merdol; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Salmonella virulence plasmid; spvB gene; mono ADP-ribosyl transferase; actin; Acanthamoeba rhysodes;

    Abstract : Salmonellae are Gram-negative enteric bacteria and facultative intracellular pathogens responsible for a diversity of illnesses in a wide range of hosts, including man. Many serovars of Salmonella enterica harbor a plasmid that enhances bacterial virulence in infection models, and that seems to promote extraintestinal infection in man. READ MORE