Search for dissertations about: "cell division"

Showing result 11 - 15 of 221 swedish dissertations containing the words cell division.

  2. 11. Developmental Control of Cell Division in Streptomyces coelicolor

    Author : Nina Grantcharova; Klas Flärdh; Gerhart Wagner; Yves Brun; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Microbiology; FtsZ; cell division; Streptomyces; GFP; bacterial development; Mikrobiologi; Microbiology; Mikrobiologi;

    Abstract : Cell division in the Gram-positive bacterium Streptomyces coelicolor starts with the assembly of the tubulin homologue FtsZ into a cytokinetic ring (the Z ring) at the site of septation. In stark contrast to the binary fission of most bacteria, the syncytial hyphal cells of S. READ MORE

  4. 12. Evolution of cellular complexity and other remarkable features in Gemmataceae : Complex bacterial lineages defy prokaryotic trends

    Author : Mayank Mahajan; Siv G. E. Andersson; James O. McInerney; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Molecular evolution; Planctomycetes; Gemmataceae; functional organization; signalling; protein interaction; peptidoglycan; membranes; cell division; radiation tolerance; Pfam; SCOP; comparative genomics; protein architecture; domain shuffling and orthologous clustering; Bioinformatics; Bioinformatik; Biologi med inriktning mot molekylär evolution; Biology with specialization in Molecular Evolution; Biology with specialization in Molecular Biology; Biologi med inriktning mot molekylärbiologi;

    Abstract : Bacteria of the family Gemmataceae belong the phylum Planctomycetes and are remarkable because of their complex cellular architectures, previously considered to be traits exclusive to eukaryotes. This thesis provides clues to the atypical cell envelope, the enhanced radiotolerance and the amazing cellular complexity of these bacteria. READ MORE

  5. 13. The role of gamma-tubulin in cell division and cancer

    Author : Greta Eklund; Malmö Molekylär patologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Abstract : Although cancer is a heterogeneous disease, a common theme in tumor cells is the deregulation of cell division, which renders tumor progression independent of otherwise necessary internal or external growth cues. This may provide cancer cells with the ability to divide indefinitely, posing a threat to the rest of the organism. READ MORE

  6. 14. Tropomyosin in Normal and Malignant Cells and the Action of Picropodophyllin on the Microfilament and Microtubule Systems

    Author : Li-Sophie Zhao Rathje; Uno Lindberg; Roger Karlsson; J. Victor Small; Stockholms universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Tropomyosin; Actin; Picropodophyllin; Tubulin; Cell motility; Cancer; Cell biology; Cellbiologi; cellbiologi; Cellbiology;

    Abstract : Cell motility is a fundamental process, enabling cells to migrate, for instance during embryogenesis, tissue repair and defense. Force is generated by two protein systems, which also participate in cell proliferation, control macromolecular and organelle distribution and determine the fine structure of the cell interior. READ MORE

  7. 15. Cell-to-Cell Signalling in Arabidopsis Root Development

    Author : Christina Joy Roberts; Annelie Carlsbecker; Dolf Weijers; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; HD-ZIP III; miRNA; plasmodesmata; auxin; ROS; xylem; Biologi med inriktning mot fysiologisk botanik; Biology with specialization in Physiological Botany;

    Abstract : Development in multicellular organisms requires a strict balance between cell division and differentiation. The simple architecture of the Arabidopsis thaliana root makes it an ideal model for studying molecular mechanisms controlling both the transition from cell division to cell differentiation and cell fate determination. READ MORE