Sökning: "Frankia"

Hittade 4 uppsatser innehållade ordet Frankia.

  1. 1. Chronicled in metal : The biography of a trefoil brooch and the importance of object modification in Viking Age Sweden

    Kandidat-uppsats, Uppsala universitet/Arkeologi

    Författare :Isac Löfgren; [2023]
    Nyckelord :Trefoil brooch; Vikings; Viking Age; object biography; ornamentation;

    Sammanfattning : Trefoil brooches are one of the most abundant types of Viking Age jewellery in Scandinavia. This thesis delves into the journey of one such brooch, known as 555783, discovered in Birka, Sweden. LÄS MER

  3. 2. Frankia – ett släkte kvävefixerande bakterier : Biodiversitet, förekomst i jord och frö, samt påverkan på tillväxt hos havtorn

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Maria Nygren; [2021]
    Nyckelord :Frankia; Sea buckthorn; Nitrogen-fixation;

    Sammanfattning : This study aimed to describe the biodiversity of the nitrogen-fixing symbiotic bacteria Frankia, to investigate the occurrence of Frankia in soil and seeds, and finally test the effect of a Frankia symbiosis on growth rate on Sea buckthorn (Hippophae rhamnoides) in an experiment. Data from the high-quality ribosomal gene database SILVA was used to reconstruct phylogenetic trees that revealed a genetic diversity in the genus that includes more strains than 16 described species so far. LÄS MER

  4. 3. The metagenomes of root nodules in actinorhizal plants : A bioinformatic study of endophytic bacterial communities

    Kandidat-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Ellen Fasth; [2021]
    Nyckelord :Actinorhizal plants; Frankia; endosymbiosis; root nodules; metagenomes; bioinformatics;

    Sammanfattning : Actinorhizal plants are in symbiosis with the nitrogen-fixating soil bacterium Frankia, which forms nodules in the plant root. However, several studies also report other endophytic bacteria appearing in the nodules, but their function and interaction with the host plant or Frankia is not yet understood. LÄS MER

  5. 4. Comparative genomics : understanding regulation ofhydrogenases in the nitrogen-fixing Frankia

    Master-uppsats, SLU/Dept. of Forest Genetics and Plant Physiology

    Författare :Chatchai Kosawang; [2009]
    Nyckelord :Genomics; Hydrogenases; Nitrogen fixation; Frankia;

    Sammanfattning : Frankia is a facultative symbiont actinomycete living with the dicotyledonousplant worldwide. Two hydrogenase functions- uptake hydrogenase and hydrogenevolvinghydrogenase- have been so far reported in Frankia species, while thepresence of [Fe] hydrogenase function was surmised. LÄS MER