Research Topics
| V TorsvikSummaryAffiliation: University of Bergen Country: Norway Publications
| Collaborators
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Detail Information
Publications
Prokaryotic diversity--magnitude, dynamics, and controlling factorsVigdis Torsvik
Department of Microbiology, University of Bergen, Jahnebakken 5, N 5020 Bergen, Norway
Science 296:1064-6. 2002..Hypotheses and models explaining such differences are under development and are beginning to offer promising insights into the mechanisms governing prokaryote diversity and ecosystem function...
Novel techniques for analysing microbial diversity in natural and perturbed environmentsV Torsvik
Department of Microbiology, University of Bergen, Norway
J Biotechnol 64:53-62. 1998..Our investigations show that agricultural management, fish farming and pollution may lead to profound changes in the community structure and a reduction in the bacterial diversity...
Microbial diversity and function in soil: from genes to ecosystemsVigdis Torsvik
Department of Microbiology, University of Bergen, Post Box 7800, Jahnebakken 5, N 5020, Bergen, Norway
Curr Opin Microbiol 5:240-5. 2002..This review summarizes the recent progress in studies of soil microbial communities with focus on novel methods and approaches that provide new insight into the relationship between phylogenetic and functional diversity...
Distribution of bacterioplankton in meromictic Lake Saelenvannet, as determined by denaturing gradient gel electrophoresis of PCR-amplified gene fragments coding for 16S rRNAL Ovreas
Department of Microbiology, University of Bergen, Norway
Appl Environ Microbiol 63:3367-73. 1997..Several dominant fragments in the DGGE profiles were excised and sequenced. Among the dominant populations were representatives related to Chlorobium phaeovibrioides, chloroplasts from eukaryotic algae, and unidentified Archaea...
Abundance and diversity of Archaea in heavy-metal-contaminated soilsR A Sandaa
Department of Microbiology, University of Bergen, N 5020 Bergen, Norway
Appl Environ Microbiol 65:3293-7. 1999..Analysis of cloned 16S ribosomal DNA showed close similarities to a unique and globally distributed lineage of the kingdom Crenarchaeota that is phylogenetically distinct from currently characterized crenarchaeotal species...
Characterization of microbial diversity in hypersaline environments by melting profiles and reassociation kinetics in combination with terminal restriction fragment length polymorphism (T-RFLP)L Øvreås
Department of Microbiology, University of Bergen, Jahnebakken 5, N 5020 Bergen, Norway
Microb Ecol 46:291-301. 2003..One of these predominant phylotypes is the extreme halophilic bacterium belonging to the bacteroidetes group, Salinibacter ruber...
Methanotrophic diversity in an agricultural soil as evaluated by denaturing gradient gel electrophoresis profiles of pmoA, mxaF and 16S rDNA sequencesA Fjellbirkeland
Department of Microbiology, University of Bergen, Norway
Antonie Van Leeuwenhoek 79:209-17. 2001..We also designed a new pmoA-targeting primer set which could be used in a nested protocol to amplify PCR-products from DNA extracted directly from the soil...
Microenvironments and microbial community structure in sedimentsS P C Tankéré
Department of Microbiology, University of Bergen, Norway
Environ Microbiol 4:97-105. 2002..Although the resolution of techniques used was different, sequencing results were consistent with chemical data in delineating the same horizons according to redox, pH or ecological properties...
Phylogenetic analysis of bacterial communities associated with larvae of the Atlantic halibut propose succession from a uniform normal floraSigmund Jensen
Department of Aquaculture, Institute of Marine Research, Nordnes, Bergen, Norway
Syst Appl Microbiol 27:728-36. 2004..Comparative analysis of bacterial communities from different geographical regions indicated that larvae of the Atlantic halibut possess a distinct and specific normal flora...
Recovery, purification, and cloning of high-molecular-weight DNA from soil microorganismsMark R Liles
Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
Appl Environ Microbiol 74:3302-5. 2008..Nucleases that copurified with the metagenomic DNA were removed by incubating plugs with a high-salt and -formamide solution. This method was used to construct large-insert soil metagenomic libraries...
