Sökning: "metabolically active"

Visar resultat 1 - 5 av 40 avhandlingar innehållade orden metabolically active.

  1. 1. Attached Bacterial Communities in Lakes – Habitat-Specific Differences

    Författare :Ann-Louise Haglund; Lars Tranvik; Helmut Fischer; Bengt Boström; Erik Törnblom; Paul del Giorgio; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ecology; bacteria; freshwater; sediment; epiphyton; bacterioplankton; metabolically active; Ekologi; Terrestrial; freshwater and marine ecology; Terrestisk; limnisk och marin ekologi;

    Sammanfattning : For many years, the importance of microorganisms attached to surfaces in littoral zones and wetlands has been disregarded when describing aquatic ecosystem dynamics. Supporting evidence is scarce but convincing that these microbial communities are not only very productive but can often serve as major regulators of nutrient and carbon dynamics in many freshwaters. LÄS MER

  3. 2. Mitochondrial medicine. New strategies to evaluate drug toxicity and develop pharmacological protection of the cell’s powerhouse

    Författare :Sarah Piel; Klinisk neurofysiologi; []
    Nyckelord :mitochondria; drug-induced mitochondrial toxicity; mitochondrial disease; mitochondrial medicine; drug development; succinate; methylene blue; metformin; acetaminophen; paracetamol; Kolliphor® EL;

    Sammanfattning : Mitochondria produce the majority of the cell’s energy. Any dysfunction in, or interference with mitochondrial function can have severe consequences. And yet, it was only within the last decades that screening for potential mitochondrial toxicity was included as routine toxicity assay during early drug development. LÄS MER

  4. 3. Iron nutrition dynamics - Differences between calcicole and calcifuge plants

    Författare :Angelika Zohlen; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; 10-phenanthroline; 1; chlorophyll; plaque; root; leaf; immobilization; plants; calcifuge; Iron; calcicole; Plant ecology; Växtekologi;

    Sammanfattning : One third of the earth´s soils is calcareous. Calcifuge plants are excluded from these soils, and one of the main causes is Fe deficiency, as Fe solubility in calcareous soil is very low. A lack of Fe lowers chlorophyll content, visible as yellowing of leaves, called chlorosis. LÄS MER

  5. 4. Exploring the metagenome of the Baltic Sea sediment

    Författare :Fredrik Hårdeman; Sara Sjöling; Gunnar Sandström; Kornelia Smalla; Södertörns högskola; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Maringeologi; Bakterier;

    Sammanfattning : Environmental microorganisms are fundamental to ecosystem function, acting as drivers in processes such as primary production, organic matter remineralisation, pollution remediation and global biogeochemical cycling. However, the study of the bacterial communities requires the application of advanced culture-independent methods considering that only a small fraction of the community is otherwise accessed. LÄS MER

  7. 5. MicroRNA and energy metabolism in gastrointestinal tumors

    Författare :Wen-Kuan Huang; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : MicroRNAs (miRNAs) contribute to cancer development and drug resistance via cellular biological processes, including metabolic pathways. Energy metabolism plays a significant role to maintain tumor proliferation in gastrointestinal (GI) cancers. However, the roles of miRNAs and energy metabolism in GI cancers are not fully understood. LÄS MER