Search for dissertations about: "16S rRNA gene sequences"

Showing result 1 - 5 of 24 swedish dissertations containing the words 16S rRNA gene sequences.

  2. 1. Bacterial identification by the 16S rRNA gene

    Author : Tobias Olofsson; Avdelningen för medicinsk mikrobiologi; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Livsmedelsteknik; Food and drink technology; Naturvetenskap; Natural science; mykologi; virologi; Mikrobiologi; mycology; virology; bacteriology; 16S rRNA; Microbiology; Identification; Bacteria; bakteriologi;

    Abstract : The identification and classification of bacteria was initially performed with morphological methods applied on cultivated bacteria. It was not until the mid 1970s, when sequences of ribosomal RNA were discovered to be useful for bacterial evolution, that a new era started. This method showed to be far more accurate for bacterial identification. READ MORE

  4. 2. Ammonia-Oxidising Bacteria in Soil : Studies of diversity and abundance using 16S rRNA gene analysis

    Author : Anna Hermansson; Janet Jansson; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Nitrification is the process whereby ammonia is oxidised to nitrate. The first step of this process is carried out by the chemoautotrophic, ammonia-oxidising bacteria (AOB), which convert ammonia to nitrite. READ MORE

  5. 3. Characterization of the Intestinal Microbiota by DNA-Based Methods

    Author : Mei Wang; Livsmedelsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mycology; Mikrobiologi; bakteriologi; virologi; mykologi; bacteriology; virology; Microbiology; Ulcerative colitis; T-RFLP; 16S rRNA; Brachyspira; Microbiota; Bacterial diversity; Bacterial translocation; Translocating bacteria;

    Abstract : The intestinal flora and the bacteria found in the extraintestinal sites were studied in liver injury rats, with or without Lactobacillus plantarum 299v pre-treatment. The dominating intestinal flora and translocating bacteria were typed by RAPD and identified by 16S rDNA sequencing. READ MORE

  6. 4. Microbially induced concrete degradation in subsea tunnels - Community structure of biofilms from sprayed reinforced concrete in the Oslofjord tunnel

    Author : Sabina Karacic; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; microbial community structure; concrete deterioration; biocorrosion; 16S rRNA gene sequences; biofilm; subsea tunnel;

    Abstract : Microbially induced concrete deterioration has been discovered in several Norwegian subsea tunnels with significant disintegration of the calcium silicate hydrate (C-S-H) and steel fibre corrosion in areas with leakages of saline groundwater. Complex microbial biofilm activity together with abiotic attack from saline ground water, with high concentrations of Cl−, SO42−, Mg2+ and HCO3−, are responsible for the degradation in the specific subsea tunnel environment. READ MORE

  7. 5. When bioelectrochemical systems meet extremophiles, possibilities and challenges

    Author : Gaofeng Ni; Mark Dopson; Bert Hamelers; Linnéuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; acidophiles; psychrophiles; haloalkaliphiles; bioelectrochemical systems; microbial sulfur metabolism; 16S rRNA gene amplicon sequencing; metagenomics; metatranscriptomics; Mikrobiologi; Microbiology;

    Abstract : Extremophiles are microorganisms live and thrive in extreme environments that are harsh and hostile to most forms of life on earth (e.g. low pH, low temperature, high pH and high salinity). They have developed strategies to obtain nutrients and conserve energy to sustain life under these adverse conditions. READ MORE