Sökning: "teleost"

Visar resultat 11 - 15 av 34 avhandlingar innehållade ordet teleost.

  1. 11. Thermal tolerance in teleost fish –importance of cardiac oxygen supply, ATP production and autonomic control

    Författare :Andreas Ekström; Göteborgs universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; acclimation; coronary; CTmax; enzyme; global warming; heart; mitochondria;

    Sammanfattning : Temperature tolerance is a key determinant of the resilience and adaptability of fish facing a warmer and more thermally variable future with climate change. Yet, the underlying physiological mechanisms determining the critical thermal maximum (CTmax) are poorly understood. LÄS MER

  3. 12. Target organs for androgens in two teleost fishes, Atlantic salmon, Salmo salar, and three-spined stickleback, Gasterosteus aculeatus

    Författare :Staffan Jakobsson; Scott P. Alexander; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; zoologi; Zoology;

    Sammanfattning : The major androgen in male teleost fishes is 11-ketotestosterone (11KT) and not testosterone (T) as in mammals. 11KT has often been found to be more effective than T in stimulating teleost male secondary sexual characters (SSC's). LÄS MER

  4. 13. On the mode of action of rotenone upon the cell respiration and the structural pattern of the chloride cells of the gills of the rotenone-poisoned marine teleost Gadus callarias L

    Författare :Karl-Eric Öberg; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

    Sammanfattning : .... LÄS MER

  5. 14. Evolution of the Neuropeptide Y System in Vertebrates with Focus on Fishes

    Författare :Tomas Larsson; Dan Larhammar; Svante Winberg; Kenneth H. Wolfe; Uppsala universitet; []
    Nyckelord :Molecular biology; neuropeptide Y; GPCR; evolution; gene duplication; vertebrates; ray-finned fishes; Molekylärbiologi;

    Sammanfattning : Gene families in vertebrates often contain more dulicates (paralogs) than in invertebrates. This has been attributed to genome duplications, i.e., tetraploidizations. LÄS MER

  7. 15. Evolution of the Neuropeptide Y and Opioid Systems and their Genomic Regions

    Författare :Görel Sundström; Dan Larhammar; Manfred Schartl; Uppsala universitet; []
    Nyckelord :neuropeptide Y; opioid; evolution; genome duplication; gene duplication; Hox; SCN; IGFBP; MEDICINE; MEDICIN;

    Sammanfattning : Two whole genome duplications (2R) occurred early in vertebrate evolution. By using combined information from phylogenetic analyses and chromosomal location of genes, this thesis delineates the evolutionary history of two receptor-ligand systems that expanded by these large scale events. LÄS MER