Sökning: "Per Gardeström"

Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Per Gardeström.

  1. 1. Preparation of leaf mitochondria and studies on mitochondrial photorespiratory reactions

    Författare :Per Gardeström; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; leaf mitochondria; photorespiration; aqueous two-phase system; Percoli gradient; cytochromes; glycine decarboyxlase; serine hydroxymethyltransferase; inhitors of photorespiration;

    Sammanfattning : A procedure for the preparation of spinach leaf mitochondria was developed. The procedure combines differential centrifugation, partition in dextran- polyethyleneglycol two-phase system and Percoli density gradient centri- fugation. The different steps separate the material mainly according to size, surface properties and density, respectively. LÄS MER

  3. 2. Att fostra journalister : Journalistutbildningens formering i Sverige 1944-1970

    Författare :Elin Gardeström; Lena Lennerhed; Bosse Holmqvist; Patrik Lundell; Per Wisselgren; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; journalism education; journalism training; journalism apprenticeships; public opinion; freedom of expression; History of science and ideas; Idé- o lärdomshistoria; idéhistoria; History of Ideas;

    Sammanfattning : The thesis analyses the interaction between various interests in Swedish society when the existing apprenticeship system for the journalism profession was to be replaced by a formal journalism education programme. The press organisations had a difficult time agreeing on a programme, and the issue was discussed for over 50 years. LÄS MER

  4. 3. Att fostra journalister : Journalistutbildningens formering i Sverige 1944 -1970

    Författare :Elin Gardeström; Lena Lennerhed; Bosse Holmqvist; Patrik Lundell; Per Wisselgren; Södertörns högskola; []
    Nyckelord :HUMANIORA; HUMANITIES; journalism education; journalism training; journalistutbildning;

    Sammanfattning : The thesis analyses the interaction between various interests in Swedish society when the existing apprenticeship system for the journalism profession was to be replaced by a formal journalism education programme. The press organisations had a difficult time agreeing on a programme, and the issue was discussed for over 50 years. LÄS MER

  5. 4. Shedding Light on Shade- and Dark-Induced Leaf Senescence

    Författare :Bastiaan Brouwer; Per Gardeström; Karin Krupinska; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Arabidopsis; darkness; light; photosynthesis; phytochrome; shade; senescence;

    Sammanfattning : Leaf senescence is the final stage of leaf development, during which the leaf relocates most of itsvaluable nutrients to developing or storing parts of the plant. As this process progresses, leaves losetheir green color and their capacity to perform photosynthesis. LÄS MER

  7. 5. Functional and structural studies of the Presequence protease, PreP

    Författare :Hans G Bäckman; Elzbieta Glaser; Per Gardeström; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Presequence Protease; PreP; AtPreP; hPreP; Biochemistry; biokemi;

    Sammanfattning : AtPreP (Arabidopsis thaliana Presequence Protease) is a zink metallooligopeptidase that is dually targeted to both mitochondria and chloroplasts. In these organelles it functions as a peptidasome that degrades the N-terminal targeting peptides that are cleaved off from the mature protein after protein import, as well as other unstructured peptides. LÄS MER