Search for dissertations about: "Autotrophic"

Showing result 1 - 5 of 21 swedish dissertations containing the word Autotrophic.

  1. 1. Explaining temporal variations in soil respiration rates and delta13C in coniferous forest ecosystems

    University dissertation from Örebro : Örebro universitet

    Author : Daniel Comstedt; Örebro universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Autotrophic; Boreal forest; Elevated CO2; 13C; Natural abundance of stable isotopes; Picea abies; PLS; Root respiration; Soil respiration; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi; Biology; Biologi;

    Abstract : Soils of Northern Hemisphere forests contain a large part of the global terrestrial carbon (C) pool. Even small changes in this pool can have large impact on atmospheric [CO2] and the global climate. READ MORE

  2. 2. Proteomic profiles and gene expressions in the symbiotically competent cyanobacterium Nostoc sp. PCC 73102

    University dissertation from Stockholm : Botaniska institutionen

    Author : Liang Ran; Stockholms universitet.; [2007]
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Nostoc PCC 73102; hormogonia; 2-DE; symbiosis; photo-autotrophy; heterotrophy; cell differentiation; MEDICINE Microbiology; immunology; infectious diseases Microbiology; MEDICIN Mikrobiologi; immunologi; infektionssjukdomar Mikrobiologi; mikrobiologi; Microbiology;

    Abstract : Nostoc PCC 73102 is an evolutionary important cyanobacterium with multiple phenotypic traits and symbiotic capacities. Based on two-dimensional gel electrophoresis (2-DE) and MALDI-TOF mass spectrometry, a proteomic approach was developed in order to obtain protein profiles of this symbiotically competent cyanobacterium during three trophic types/life stages: free-living photo-autotrophic and diazotrophic growth conditions, dark heterotrophic conditions and hormogonium formation. READ MORE

  3. 3. Benthic-Pelagic Microbial Interactions and Carbon Cycling in Clearwater Lakes

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Eva Andersson; Uppsala universitet.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biology; microphytobenthos; phytoplankton; heterotrophic bacteria; interactions; nutrients; carbon cycling; clearwater lakes; Biologi; NATURAL SCIENCES Biology; NATURVETENSKAP Biologi;

    Abstract : This thesis focuses on the interactions among microbiota in clearwater lakes. Field sampling and field experiments were performed to evaluate interactions among microbiota and the importance of benthic versus pelagic microbiota in terms of biomass and production. In addition, carbon cycling in an oligotrophic clearwater lake was calculated. READ MORE

  4. 4. Character and Function of Anammox Bacteria under Environmental Stress

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Ola Bäckman; Göteborgs universitet.; Gothenburg University.; [2013]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Anammox; N-cycle; environmental stress; redox oscillations; anammoxosome; key proteins;

    Abstract : During the last few decades observations of novel processes involved in nitrogen transformations have fundamentally challenged the view of pathways and controlling mechanisms during local and global nitrogen cycling. Anaerobic ammonium oxidation (anammox) constitutes one of these new pathways where autotrophic bacteria oxidize ammonium by nitrite to dinitrogen gas under anaerobic conditions. READ MORE

  5. 5. Flagellates in the marine microbial food web the ecology of a mixotrophic nanoflagellate, Ochromonas sp

    University dissertation from Umeå : Umeå universitet

    Author : Agneta Andersson-Nordström; [1989]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Microbial food web; flagellates; Ochromonas sp.; mixotrophy; size- selective grazing; remineralisation; excretion of DFAA;

    Abstract : Nanoflagellates were found to be abundant in a coastal area of the northern Bothnian Sea. The maximum concentration of nanoflagellates, approximately 8000 cells ml-1, was observed in July, coinciding with a decrease in the abundance of cyanobacteria. READ MORE