Search for dissertations about: "extracellular amino acids."
Showing result 1 - 5 of 56 swedish dissertations containing the words extracellular amino acids..
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1. Monitoring of extracellular substances after spontaneous and experimental subarachnoid hemorrhage
Abstract : Even though survival is considerably enhanced after surgical treatment of an aneurysmal subarachnoid hemorrhage (SAH), there is a critical period, which keeps the patient in intensive care for days or even weeks. Complications, such as vasospasm, ischemia and brain edema ultimately lead to further brain damage. READ MORE
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2. Utilization of terrestrially derived dissolved organic nitrogen by aquatic bacteria
Abstract : I investigated the bacterial utilization of terrestrially derived dissolved organic nitrogen (DON) in aquatic ecosystems, and assessed the potential role of river-born DON in marine eutrophication. To determine the bioavailability of DON, I developed a bioassay employing N-limited bacterial regrowth cultures, which were calibrated with additions of inorganic nitrogen. READ MORE
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3. Molecular mechanisms and biological consequences of the production of non-canonical D-amino acids in bacteria
Abstract : Most bacteria possess a vital net-like macromolecule – peptidoglycan (PG). PG encases bacteria around the cytoplasmic membrane to withstand the high internal turgor pressure and thereby protect the cell from bursting. In addition, PG is a major morphological determinant of bacteria being both required and sufficient to maintain cell shape. READ MORE
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4. Physiology of Escherichia coli in batch and fed-batch cultures with special emphasis on amino acid and glucose metabolism
Abstract : The objective of this work is to better understand themetabolism and physiology ofEscherichiacoli(W3110) in defined medium cultures with thelong-term goal of improving cell yield and recombinant proteinproductivity.The order of amino acid utilization inE. colibatch cultures was investigated in a medium with16 amino acids and glucose. READ MORE
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5. Genetic and biochemical characterization of a novel sensor of extracellular amino acids in yeast
Abstract : Eukaryotic cells make developmental decisions that initiate distinct programs of gene expression. In the yeast Saccharomyces cerevisiae the majority of decisions affecting developmental outcomes are made in response to extra- and intracellular derived nutritional signals. READ MORE