Essays about: "Actinobacteria"

Showing result 1 - 5 of 6 essays containing the word Actinobacteria.

  1. 1. Comparative genomics of Central Arctic Ocean microbiota for observation of Alternative Carbon Fixation Pathways

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Kaavya Venkateswaran; [2023]
    Keywords : comparative genomics; microbial ecology; bioinformatics; carbon fixation; pangenomics;

    Abstract : The Central Arctic Ocean is a repository of rich and diverse biota, whose major portion is one of the most important drivers of global biogeochemical cycles, including carbon cycling. In this study, the functional potential of the microbiota to fix carbon with alternative carbon fixation pathways were investigated along with their chemolithotrophic characteristics. READ MORE

  3. 2. Phylogenetic analysis of aquatic microbiomes : Evolution of the brackish microbiome

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Ziling Deng; [2020]
    Keywords : Metagonome; Aquatic environments; Biodiversity; Evolution; Phylogenetic tree; Ancestor state reconstruction; Biome origin; Metagenom; vattenmiljöer; biologisk mångfald; utveckling; fylogenetiskt träd; rekonstruktion av förfäder; biom-ursprung;

    Abstract : Microorganisms play crucial roles in aquatic environments in determining ecosystemstability and driving the turnover of elements essential to life. Understanding thedistribution and evolution of aquatic microorganisms will help us predict how aquaticecosystems will respond to Global Change, and such understanding can be gained bystudying these processes of the past. READ MORE

  4. 3. Purification, functional characterization and crystallization of the PerR peroxide sensor from Saccharopolyspora erythraea

    University essay from Uppsala universitet/Strukturbiologi

    Author : Grim Elison Kalman; [2019]
    Keywords : structural biology; cell culture; protein expression; genetic engineering; spectroscopy; X-ray crystallography; small angle X-ray scattering; SAXS; transcription factor; PerR; metal binding; antibiotics; Saccharopolyspora erythraea; S. erythraea; soil bacterium; actinobacteria; actinomycetes; oxidative stress; peroxide stress; structure determination; characterization; stabilization; peroxide sensor; iron sensor; manganese sensor; metalloprotein; metal ion homeostasis; metal ion; prokaryotic; strukturbiologi; cellodling; proteinuttryck; genteknik; spektroskopi; röntgenkristallografi; småvinkel-röntgenspridning; SAXS; transkriptionsfaktor; PerR; metallbindande; antibiotika; Saccharopolyspora erythraea; S. erythraea; jordartsbakterie; Aktinobakterier; Actinobacteria; Actinomycetes; oxidativ stress; peroxid stress; strukturbestämning; karaktärisering; stabilisering; peroxidsensor; järnsensor; mangansensor; metalljonshomeostas; metalljoner; prokaryot;

    Abstract : This report summarizes the work on the cloning, expression, and purification of PerR, a metal sensing regulator from Saccharopolyspora erythraea and the subsequent characterization using small angle X-ray scattering and other biochemical methods. The report aims to provide an insight into prokaryotic metal homeostasis, provide a better understanding of how PerR works and provide valuable information for the continued work on the crystallization of PerR. READ MORE

  5. 4. HisA mutants with minor structural differences display major functional deviations

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/Struktur- och molekylärbiologi

    Author : András Erdélyi; [2016]
    Keywords : ;

    Abstract : Even though enzymes tend to specialize on one reaction during evolution, enzyme promiscuity is an abundant phenomenon. The subject of this thesis is the Salmonella enterica N’-[(5’-phosphosoribosyl)-formimino]-5-aminoimidazole-4 carboxamide-ribonucleotide (ProFAR) isomerase (SeHisA), a (βα)8-barrel enzyme from the histidine biosynthesis that catalyzes one reaction on one substrate in one organism. READ MORE

  6. 5. Development of PCR primers for community studies of bacterial hydrogenases in environmental samples

    University essay from SLU/Dept. of Plant Biology and Forest Genetics (until 131231)

    Author : Ernest Ndobe Ndobe; [2013]
    Keywords : uptake hydrogenase; bacterial community; biological nitrogen fixation; symbiosis;

    Abstract : Soil microorganisms interact with plants in ways that affect nutrient availability, hormonal regulation and often lead to improved plant growth. In the N2-fixing root nodule symbiosis between legume plants and bacteria generally called rhizobia the plant gains access to atmospheric nitrogen. READ MORE