Sökning: "Stefan Nordlund"

Visar resultat 1 - 5 av 6 avhandlingar innehållade orden Stefan Nordlund.

  1. 1. Studies on the nitrogenase system of the photosynthetic bacterium Rhodospirillum rubrum

    Författare :Stefan Nordlund; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  3. 2. Electron transport to nitrogenase in Rhodospirillum rubrum

    Författare :Tomas Edgren; Stefan Nordlund; Patrick Hallenbeck; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Rhodospirillum rubrum; nitrogen fixation; electron transport; FixABCX; ferredoxin; Biochemistry; Biokemi;

    Sammanfattning : Biological nitrogen fixation is a key step in the global nitrogen cycle. In this process, dinitrogen in the air is converted to biologically accessible ammonia, which is further assimilated in to the biosphere. LÄS MER

  4. 3. Oxygen-dependent regulation of key components in microbial chlorate respiration

    Författare :Miriam Hellberg Lindqvist; Thomas Nilsson; Stefan Nordlund; Karlstads universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Anaerobic respiration; Gene expression; Chlorate; Chlorate reductase; Chlorite dismutase; Kemi; Chemistry;

    Sammanfattning : Contamination of perchlorate and chlorate in nature is primarily the result of various industrial processes. The microbial respiration of these oxyanions of chlorine plays a major role in reducing the society’s impact on the environment. LÄS MER

  5. 4. Regulation of Glutamine Synthetase in the Diazotroph Rhodospirillum rubrum

    Författare :Anders Jonsson; Stefan Nordlund; Karl Forchhammer; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; glutamine synthetase; Rhodospirillum rubrum; GlnE; PII; Biochemistry; Biokemi; biokemi; Biochemistry;

    Sammanfattning : The bacterial cell needs ammonia for synthesis of glutamine from glutamate. Only one enzyme is able to catalyze this reaction, namely glutamine synthetase (GS). GS can be regulated both transcriptionally and post-translationally and it is present in all kingdoms of life. LÄS MER

  7. 5. PII proteins as global regulators of bacterial nitrogen metabolism

    Författare :Pedro Filipe Teixeira; Stefan Nordlund; Ray Dixon; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Rhodospirillum rubrum; nitrogen metabolism; signal transduction; PII proteins; Biochemistry; Biokemi; Biochemistry; biokemi;

    Sammanfattning : Nitrogen is an essential element to sustain life, being a component of most biological macromolecules. In spite of the abundance of gaseous N2, the availability of nitrogen compounds that can be readily used by most microorganisms is scarce and its production energetically demanding. LÄS MER