Publikasjoner
NIBIOs ansatte publiserer flere hundre vitenskapelige artikler og forskningsrapporter hvert år. Her finner du referanser og lenker til publikasjoner og andre forsknings- og formidlingsaktiviteter. Samlingen oppdateres løpende med både nytt og historisk materiale. For mer informasjon om NIBIOs publikasjoner, besøk NIBIOs bibliotek.
2011
Forfattere
Arild AndersenSammendrag
Different methods to reduce the population of Arion lusitanicus are being tested in private gardens already infested naturally with the slug, as well as in arenas in the laboratory. After the first 2 years out of a 4 year project the following preliminary trends have been observed: Untreated gardens had the highest populations. Gardens with owners trapping and killing slugs had the lowest populations. Gardens that were rearranged to become drier had intermediate populations. In arenas in the laboratory, slugs avoided cocoa chips mulch and alginate.
Forfattere
Arild AndersenSammendrag
Preliminary results from a Norwegian research project 2005-2008 on Arion lusitanicus was presented. In private gardens handpicking had the strongest effect on the population size, but creating relatively dry and open gardens, and removing suitable overwintering sites also had effect. The geographic distribution and life cycle are also presented. Foreløpige resultater fra et norsk forskningsprosjekt 2005-2008 på Iberiaskogsnegl ble presentert. I privathager hadde håndplukk den sterkeste effekten på populasjonsstørrelsen, men også det å skape relativt tørre og åpne hager, og å fjerne gunstige overvintringssteder hadde effekt. Artens utbredelse og livssyklus i Norge ble også presentert.
Sammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Erik LysøeSammendrag
Fusarium graminearum causes head blight disease in wheat and barley. To help understand the infection process on wheat we studied global gene expression of F. graminearum in a time series from 24 to 196 hours after inoculation, compared to a non-inoculated control. The infection was rapid and after 48h over 4000 fungal genes were expressed. The number of genes expressed increased over time up to 96h (>8000 genes), and then declined at the 144h and 192h post inoculation time points. After subtraction of genes found expressed on complete medium, during carbon or nitrogen starvation, and on barley, only 355 were found exclusively expressed in wheat, mostly ones with unknown function (72.6%). These genes were mainly found in single-nucleotide polymorphism enriched islands on the chromosomes, suggesting a higher evolutionary selection pressure. The annotated genes were enriched in functional groups predicted to be involved in allantoin and allantoate transport, detoxification, nitrogen, sulfur and selenium metabolism, secondary metabolism, carbohydrate metabolism and degradation of polysaccharides and ester compounds. Several putative secreted virulence factors were also found expressed in wheat.
Forfattere
Erik LysøeSammendrag
Fusarium graminearum causes head blight disease in wheat and barley. To help understand the infection process on wheat we studied global gene expression of F. graminearum in a time series from 24 to 196 hours after inoculation, compared to a non-inoculated control. The infection was rapid and after 48h over 4000 fungal genes were expressed. The number of genes expressed increased over time up to 96h (>8000 genes), and then declined at the 144h and 192h post inoculation time points. After subtraction of genes found expressed on complete medium, during carbon or nitrogen starvation, and on barley, only 355 were found exclusively expressed in wheat, mostly ones with unknown function (72.6%). These genes were mainly found in single-nucleotide polymorphism enriched islands on the chromosomes, suggesting a higher evolutionary selection pressure. The annotated genes were enriched in functional groups predicted to be involved in allantoin and allantoate transport, detoxification, nitrogen, sulfur and selenium metabolism, secondary metabolism, carbohydrate metabolism and degradation of polysaccharides and ester compounds. Several putative secreted virulence factors were also found expressed in wheat.
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Christer MagnussonSammendrag
Det er ikke registrert sammendrag
Sammendrag
Changed land use practice is one of the greatest threats to biodiversity (Sala et al. 2000). Abandonment and agricultural intensification are regarded as the most frequent land use changes in semi-natural habitats and there has been a dramatic decrease in area of semi-natural grasslands in Europe (Emanuelsson 2009). The aim of this project was to explore how colour infrared (CIR) aerial photographs can be used for monitoring and quantifying of encroachment and intensification in semi-natural grasslands in Norway.
Forfattere
Wendy WaalenSammendrag
Det er ikke registrert sammendrag