Search for dissertations about: "stress tolerance"

Showing result 16 - 20 of 163 swedish dissertations containing the words stress tolerance.

  2. 16. Too close for comfort : The role of Contact-Dependent growth Inhibition (CDI) in interbacterial competition and cooperation

    Author : Marcus Wäneskog; Sanna Koskiniemi; Paul Rainey; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; bacterial interactions; cell-cell binding; contact-dependent growth inhibition; CDI; CdiB; CdiA; CdiI; outer-membrane receptor; BamA; OmpC; OmpF; extracellular toxin delivery; Toxin-Antitoxin; TA-system; persister cells; stress tolerance; stress response; rpoS; rssB; quorum sensing; multicellular behavior; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology;

    Abstract : Contact-Dependent growth inhibition (CDI) was discovered in 2005 in the E. coli isolate EC93. Since then our knowledge of CDI systems and their impact on bacterial communities have increased exponentially. READ MORE

  4. 17. Behavioral effects of female sex steroid hormones : models of PMS and PMDD in Wistar rats

    Author : Magnus Löfgren; Torbjörn Bäckström; Inga-Maj Johansson; Per Södersten; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; PMS; PMDD; rats; progesterone; estradiol; behavior; individual response; stress interaction; tolerance; withdrawal; learning and memory; anxiety.; Biological research on drug dependence; Biologisk beroendeforskning; Endocrinology; Endokrinologi; Obstetrics and gynaecology; Obstetrik och gynekologi; Pharmacological research; Farmakologisk forskning; Obstetrics and gynaecology; Obstetrik och gynekologi; Psychology; Psykologi; obstetrik och gynekologi; Obstetrics and Gynaecology;

    Abstract : Background Animal models can be used to mimic human conditions of psychopathology, and also as pre-clinical models to evaluate candidate drugs. With hormonal treatment it is possible to produce behavior in the rat which corresponds to the mental symptoms of pre-menstrual syndrome (PMS), and pre-menstrual dysphoric disorder (PMDD). READ MORE

  5. 18. Efficient Conversion of Lignocellulose Hydrolysates- Yeast Tolerance and Redox Metabolism

    Author : Tobias Modig; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metabolism; Biokemi; metabolism; hyperosmotic stress; Biochemistry; S. cerevisiae; anaerobic growth; inhibitor tolerance; furfural; lignocellulose; HMF; Biotechnology; Bioteknik;

    Abstract : The fermentation of lignocellulose hydrolysates by Saccharomyces cerevisiae for ethanol production was investigated. An important problem for the successful conversion of these hydrolysates is that they often are inhibitory. READ MORE

  6. 19. CRISPRi/a for investigating yeast tolerance to inhibitors in lignocellulosic hydrolysates

    Author : Ibai Lenitz Etxaburu; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lignocellulosic hydrolysates; ChIP-exo; Screening; Biosensor; Formic acid; Competitive growth assay; Yeast; Tolerance; CRISPRi a; Acetic acid;

    Abstract : Saccharomyces cerevisiae has immense potential as a cell factory in various biotechnological processes where biomass from agricultural industry residues is used as feedstock. Nonetheless, the inhibitors released during the pretreatment of the biomass makes lignocellulosic hydrolysates a challenging substrate for microorganisms. READ MORE

  7. 20. Stress system function in abdominal obesity. The hypothalamic-pituitary-adrenal axis and the sympathetic nervous system in middle-aged men

    Author : Thomas Ljung; Göteborgs universitet; []
    Keywords : Abdominal obesity; stress; HPA axis; cortisol; glucocorticoid receptors; sympathetic nervous system; catecholamines; depression; SSRI;

    Abstract : Background: There is a strong relationship between central (abdominal, visceral) obesity, impaired glucose tolerance, insulin resistance, dyslipidemia and elevated blood pressure. These abnormalities are included in the term Metabolic Syndrome, and indicate an elevated risk for cardiovascular disease and diabetes type 2. READ MORE