Search for dissertations about: "CLONAL GROWTH"

Showing result 1 - 5 of 62 swedish dissertations containing the words CLONAL GROWTH.

  2. 1. Murine B lymphocyte growth regulation : a study of host defence factors and their mimicry by Mycoplasma arginini

    Author : Erik Ruuth; Umeå universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; B lymphocyte; growth; lymphokine; lymphokine-like; host-parasite; M. arginini; membrane acyl protein;

    Abstract : Immune responses are the result of extended clonal growth and maturation of specific precursors preexisting in low frequencies. Clonal expansion is partly controlled by soluble factors, thus, their identification is essential for the understanding of the immune response regulation. READ MORE

  4. 2. Physiological integration and morphological plasticity in extensive clonal plants

    Author : Tina D'Hertefeldt; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; Maianthemum; Carex; Clonal plants; tracers; Växtekologi;

    Abstract : Clonal plants show a large variation in physiological integration, i.e. the translocation of resources among ramets within the clone. READ MORE

  5. 3. Life-history traits and population differentiation in a clonal plant: implications for establishment, persistence and weediness

    Author : Johanna Eneström; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; weediness; Clonal plant; resource sharing; resource storage; partitioning of genetic variation; seedling development; seed recruitment; Aegopodium podagraria;

    Abstract : Clonality is wide-spread among plants, and clonal plants dominate many habitats and include many highly invasive species. Clonal growth incurs both advantages and costs and clonal plants often have reduced sexual reproduction compared to non-clonal plants which could be expected to lower genetic variation and hence evolutionary potential. READ MORE

  6. 4. Clonal structures and cell interactions in cancer

    Author : Nathanael Andrews; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Despite sharing an identical genome, cells of higher order multicellular organisms display a large degree of phenotypic diversity. This diversity is maintained by a sophisticated regulatory machinery that integrates information from both intrinsic and extrinsic factors, ultimately coordinating the appropriate gene expression. READ MORE

  7. 5. Clonal propagation of Detarium microcarpum and Khaya senegalensis : a step toward clonal forestry in Burkina Faso

    Author : Catherine Ky-Dembele; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The slow growth of seedlings and the impact of insect pests are major limitations to the use of indigenous species in plantations in Burkina Faso. Thus, the use of vegetative propagules and resistant clones may enhance the success of plantations. READ MORE