Search for dissertations about: "BACTERIAL-GROWTH RATES"

Showing result 1 - 5 of 16 swedish dissertations containing the words BACTERIAL-GROWTH RATES.

2. 1. Nutrient Limitation of Bacterial Growth in Soil

   Author : Fredrik Demoling; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ekologi; Ecology; Fertilization; Bacteria; Soil; Fungi; Thymidine or Leucine incorporation; Growth limitation; Phosphorus; Nitrogen; Carbon;

   Abstract : Lack of carbon has been assumed to be the most common limiting factor for bacterial growth in soil, although there are reports of limitation by nitrogen and phosphorus. I have studied nutrient limitation of bacterial growth in soil using a novel technique, where thymidine or leucine incorporation is used to detect changes in growth rates after adding nutrients. READ MORE

4. 2. On the Ecology of Saprotrophic Fungi and Bacteria in Soil: Biotic and Abiotic Control of Growth Rates

   Author : Johannes Rousk; MEMEG; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; decomposer ecology; soil pH; temperature relationship; Fungal growth; litter decomposition; bacterial growth; C:N;

   Abstract : Two groups of organisms dominate the decomposition in soil: fungi and bacteria. One of the most important parameters to optimise for any organism is its growth, and thus a direct way to study the effect of environmental factors on fungi and bacteria in soil is to measure their growth rate. READ MORE

5. 3. Allochthonous and autochthonous carbon sources of lake bacterioplankton

   Author : Emma Kritzberg; Enhet akvatisk ekologi; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Marinbiologi; limnologi; akvatisk ekologi; aquatic ecology; marine biology; Hydrobiology; bacterial community composition; bacterial growth efficiency; bacterioplankton; carbon subsidy; dissolved organic carbon; limnology;

   Abstract : Organic substrates for pelagic bacteria are derived from dissolved organic carbon (DOC) in the water column that originates either from primary production from within the lake itself (autochthonous), or import of organic matter from the terrestrial watershed (allochthonous production). This thesis addresses the utilization of allochthonous versus autochthonous carbon (C) sources by lake bacterioplankton. READ MORE

6. 4. Aspects on the role of prophylactic procedures to influence post-ERCP complication rates

   Author : Greger Olsson; Karolinska Institutet; Karolinska Institutet; []
   Keywords : ERCP;

   Abstract : Background: When the technique to use ERCP was introduced almost fifty years ago, the morbidity in treatment of hepato-biliary diseases decreased due to the introduction of this miniinvasive modality, reducing the need for open surgical procedures. However, ERCP procedures are still marred with complications such as pancreatitis, cholangitis, hemorrhage and perforation and every measure must be undertaken to reduce these adverse events. READ MORE

7. 5. Pollution-Induced Community Tolerance (PICT) of Bacteria: Evaluation in Phenol- and Antibiotic Polluted Soil

   Author : Louise Aldén; Biologiska institutionen; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Antibiotics; Bacteria; Community; Fungi; Leucine incorporation; Phenols; Soil; Pollution-Induced Community Tolerance PICT ;

   Abstract : The effects of organic pollutants on the soil microbial community were studied in this work. The main aim was to evaluate the use of pollution-induced community tolerance (PICT) in studying the effects of pollution. The leucine incorporation technique (indicating bacterial growth) was used to monitor changes in tolerance. READ MORE