Sökning: "phosphorus-limitation"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet phosphorus-limitation.

  1. 1. Metabolic analysis of shikimic acid producing Escherichia coli

    Detta är en avhandling från Chemical Engineering, Lund University

    Författare :Louise Johansson; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kemiteknik och kemisk teknologi; Biokemi; metabolism; Chemical technology and engineering; transcriptome analysis; phosphorus-limitation; carbon-limitation; fed-batch; chemostat; batch; fermentation technology; Escherichia coli; shikimic acid; Biotechnology; Bioteknik; Metabolism; Biochemistry; principal component analysis; 2D-fluorescence spectrophotometry; metabolic flux analysis; carbon-rich;

    Sammanfattning : Shikimic acid production using recombinant E.coli has been developed during the past 15 years due to the increased demand of this product, primarily as a starting material for the anti-influensa medicine Tamiflu?. A detailed metabolic analysis of a shikimic acid producing E. LÄS MER

  2. 2. Biomass, community structure and phosphorus uptake of ectomycorrhizal fungi in response to phosphorus limitation and nitrogen deposition

    Detta är en avhandling från Lunds universitet

    Författare :Juan Pablo Almeida; [2019-01]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Phosphorus and nitrogen limitation; nitrogen deposition; ectomycorrhizal fungi; community composition; apatite; Paxillus involutus; Phosphorus and nitrogen limitation; nitrogen deposition; ectomycorrhizal fungi; community composition; apatite; Paxillus involutus;

    Sammanfattning : High levels of nitrogen (N) deposition might result in a transition from N to phosphorus (P) limitation in high latitude forests. Thiscould have fundamental consequences for forest production, nutrient acquisition and nutrient leaching. LÄS MER

  3. 3. Phenotypic evolution and adaptive strategies in marine phytoplankton (Coccolithophores)

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Luka Šupraha; Jorijntje Henderiks; Bente Edvardsen; Jeremy Young; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Coccolithophores; Life-Cycle; Phytoplankton; Nutrient limitation; Temperature; Microscopy; High-throughput sequencing; Taxonomy;

    Sammanfattning : Coccolithophores are biogeochemically important marine algae that interact with the carbon cycle through photosynthesis (CO2 sink), calcification (CO2 source) and burial of carbon into oceanic sediments. The group is considered susceptible to the ongoing climate perturbations, in particular to ocean acidification, temperature increase and nutrient limitation. LÄS MER

  4. 4. Climate Related Impacts on a Lake From Physics to Biology

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Thorsten Blenckner; Rita Adrian; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Biology; Ecosystem processes; climate; phytoplankton; NAO; SCI; ice cover; modeling; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; limnologi; Limnology;

    Sammanfattning : Climatic variation and change affect the dynamics of organisms and ecosystem processes. This thesis examines phytoplankton as a target variable to trace climatic impacts on Lake Erken (Sweden) with special emphasis on the spring bloom. LÄS MER

  5. 5. The Growth of External Ectomycorrhizal Mycelia in the Field in Relation to Host Nutrient Status and Local Addition of Mineral Sources

    Detta är en avhandling från David Hagerberg, Riksv 50 Hurva, SE-241 94 Eslöv, Sweden

    Författare :David Hagerberg; [2003]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; Potassium; Phosphorus; Norway spruce; Picea abies; Whole-tree harvesting; Ectomycorrhizal fungi; Wood ash fertilization; Växtekologi; Microbiology; bacteriology; virology; mycology; Mikrobiologi; bakteriologi; virologi; mykologi;

    Sammanfattning : A method based on ingrowth mesh bags was developed to study the production of EMM. These bags were made of nylon mesh with a mesh size of 50 mu-m, which allows colonisation by fungal mycelia but excludes the tree roots. LÄS MER