Search for dissertations about: "stress tolerance"

Showing result 1 - 5 of 131 swedish dissertations containing the words stress tolerance.

  1. 1. Biotic and abiotic stress in microorganisms and plants: Some Mechanisms of Stress and Programmed Cell Death. Genetic Engineering Approaches Towards Improved Stress Tolerance

    University dissertation from Pure and Applied Biochemistry, Lund University

    Author : Per-Johan Meijer; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; biotic stress; plants; microorganisms; stress tolerance; antifreeze protein; proline; programmed cell death; systemic aquired resistance; Biochemistry; metabolism; Biokemi; Bioteknik; Biotechnology; abiotic stress;

    Abstract : Various forms of stress, such as biotic and abiotic stress, were studied in microorganisms and plants to learn more about the underlying mechanisms of such stress and potential genetic engineering strategies towards stress tolerance. An antifreeze protein from winter flounder, expressed in E. READ MORE

  2. 2. The conserved methionines in the chloroplast small heat shock protein - Role in chaperone-substrate interactions and effects of methionine sulfoxidation on chaperone activity

    University dissertation from Department of Biochemistry, Lund University

    Author : Niklas Gustavsson; [2001]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Metabolism; Biochemistry; oxidative stress; thermostability; temperature stress; stress tolerance; sHsp; protein aggregation; molecular chaperone; Heat stress; methionine sulfoxidation; Biokemi; metabolism; Plant biochemistry; Växtbiokemi;

    Abstract : The chloroplast-localized small heat shock protein (sHsp) Hsp21 belongs to the family of alpha-crystallin like sHsps which form large oligomeric structures and protect partly unfolded aggregation-prone proteins against aggregation. The main focus for this thesis has been on the highly conserved methionines in Hsp21. READ MORE

  3. 3. Exosomes and the NKG2D receptor-ligand system in pregnancy and cancer using stress for survival

    University dissertation from Umeå : Umeå university

    Author : Malin Hedlund; Lucia Mincheva-Nilsson; Susanne Gabrielsson; [2010]
    Keywords : Exsosomes; NKG2D; MICA; MICB; ULBP; human placenta; trophoblast; syncytiotrophoblast; thermal stress; oxidative stress; leukemia; lymphoma; immunologi; Immunology;

    Abstract : Although not obvious at first sight, several parallels can be drawn between pregnancy andcancer. Many proliferative, invasive and immune tolerance mechanisms that supportnormal pregnancy are also exploited by malignancies to establish a nutrient supply andevade or edit the immune response of the host. READ MORE

  4. 4. Development of robust cyanobacterial strains for biotechnological applications Stress tolerance and cell-specific expression in heterocyst-forming cyanobacteria

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Xin Li; Karin Stensjö; Yagut Allahverdiyeva-Rinne; [2018]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cyanobacteria;  Dps protein;  heterocysts;  Nostoc;  oxidative stress;  cell specific promoter; ROS tolerance; synthetic biology tools transcriptional regulation.; Biokemi; Biochemistry;

    Abstract : Synthetic biology tools can be used to exploit potential applications of cyanobacteria, promising photosynthetic hosts for production of fuels and chemicals. Specific genetic tools are needed for the development of robust cyanobacterial strains for bioengineering. READ MORE

  5. 5. Genetic adaptation to soil acidification in four grasses

    University dissertation from Ekologiska institutionen, Lunds universitet

    Author : Pernilla Göransson; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Växtekologi; Plant ecology; Deschampsia flexuosa; Deschampsia cespitosa; Elymus caninus; Poa nemoralis; arbuscular mycorrhiza; stress; tolerance; genetic variation; local adaptation; Al; Soil acidification; pH;

    Abstract : Soil acidification has become a source of serious concern in many parts of the world. In southern Sweden, the deposition of acidifying substances, such as nitrogen and sulphur compounds, has decreased the mean pH of forest soils by almost one unit since the 1950s. READ MORE