Browsing Biologisk institutt by Title
Now showing items 52-71 of 118
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2008)Background Cyanobacteria produce a wealth of secondary metabolites, including the group of small cyclic heptapeptide hepatotoxins that constitutes the microcystin family. The enzyme complex that directs the ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background DNA-dependent RNA polymerase IV and V (Pol IV and V) are multi-subunit enzymes occurring in plants. The origin of Pol V, specific to angiosperms, from Pol IV, which is present in all land plants, ...
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(Doctoral thesis / Doktoravhandling, 2010)This thesis focuses on the natural history of the dry rot fungus Serpula lacrymans and closely related taxa within Serpulaceae. In the first study the phylogenetic relationships within Serpulaceae have been investigated ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)Background The fungal genus Serpula (Serpulaceae, Boletales) comprises several saprotrophic (brown rot) taxa, including the aggressive house-infecting dry rot fungus Serpula lacrymans. Recent phylogenetic ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Background The deer ked (Lipoptena cervi), a hematophagous ectoparasite of Cervids, is currently spreading in Scandinavia. In Norway, keds are now invading the south-eastern part of the country and the ...
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(Chapter / Bokkapittel / PublishedVersion; Peer reviewed, 2012)In: Pagou, P. and Hallegraeff, G. (eds). Proceedings of the 14th International Conference on Harmful Algae. International Society for the Study of Harmful Algae and Intergovernmental Oceanographic Commission of UNESCO 2012 ...
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(Doctoral thesis / Doktoravhandling, 2008)High nitrate (NO3) leaching rates have been observed in mountain and heathland areas in Europe at sites receiving high levels of nitrogen (N) deposition. These areas are characterised by sparse vegetation on thin, patchy ...
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(Doctoral thesis / Doktoravhandling, 2008)In most cases, the proliferation of marine planktonic alga is ecologically beneficial for the marine food web. However, harmful algal blooms can have negative effects by causing fish kills. In this PhD thesis particularly ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background Genetic variation has been shown to play a significant role in determining susceptibility to the salmon louse, Lepeophtheirus salmonis. However, the mechanisms involved in differential response ...
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(Master thesis / Hovedoppgave, 2005)Abstract Juniperus procera is a long-lived quality timber species that is endangered in its entire African distribution and listed as lower risk near threatened (LR-nt) in IUCN Red Data List for Malawi. It is characterized ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)When plastids are transferred between eukaryote lineages through series of endosymbiosis, their environment changes dramatically. Comparison of dinoflagellate plastids that originated from different algal groups has revealed ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)Atlantic cod (Gadus morhua) is a large, cold-adapted teleost that sustains long-standing commercial fisheries and incipient aquaculture. Here we present the genome sequence of Atlantic cod, showing evidence for complex ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The vertebrate globin genes encoding the α- and β-subunits of the tetrameric hemoglobins are clustered at two unlinked loci. The highly conserved linear order of the genes flanking the hemoglobins ...
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(Master thesis / Hovedoppgave, 2005)Geografisk variasjon i metaller og metallotionein i lever hos bergnebb (Ctenolabrus rupestris) og skrubbe (Platichthys flesus) langs den norske Skagerrakkysten. Med utgangspunkt i 6 områder langs Skagerrakkysten, spredt ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2009)Background Although some mechanisms of habitat adaptation of conspecific populations have been recently elucidated, the evolution of female preference has rarely been addressed as a force driving habitat ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Understanding why some hybrid zones are bimodal and others unimodal can aid in identifying barriers to gene exchange following secondary contact. The hybrid zone between the grasshoppers Chorthippus brunneus and C. jacobsi ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)Harvesting wild populations may contrast or reinforce natural agents of selection and potentially cause evolutionary changes in life-history traits such as growth and maturation. Harvest selection may also act on behavioral ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background Dryas octopetala is a widespread dwarf shrub in alpine and arctic regions that forms ectomycorrhizal (ECM) symbiotic relationships with fungi. In this study we investigated ...
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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2010)Background The mating type loci that govern the mating process in fungi are thought to be influenced by negative frequency-dependent selection due to rare allele advantage. In this study we used a mating ...
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(Master thesis / Masteroppgave, 2008)Marine trepigget stingsild (Gasterosteus aculeatus) har kolonisert ulike ferskvannshabitat gjentatte ganger og denne koloniseringen har ført til ulikheter innen trekk som morfologi, atferd, fysiologi og livshistorie. Disse ...