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
Agnethe Christiansen Juliana Irina Spies Perminow Arild Sletten Agnethe Christiansen Inger-Lise Wetlesen AkselsenSammendrag
Sykdommen lys ringråte på potet har en lang historie her i landet. Bioforsk Plantehelse har arbeidet med påvisning av karanteneskadegjøreren nesten like lenge og har i 2009 blitt akkreditert for denne testingen. Dette er første område innen biologiske analyser ved Bioforsk Plantehelse som er akkreditert.
Forfattere
jihong liu clarke Even Sannes Riiser Ingrid Holtsmark Sonja Klemsdal Sadhu Leelavathi Andreas Lössl Vanga S. Reddy Nagothu U. Sekhar Hege Særvold Steen Sathyamangalam Swaminathan Rebekka ØvstegårdSammendrag
Dengue viruses (Flavivirus) are mosquito-borne human pathogens with a worldwide prevalence. There are four antigenically-related dengue virus serotypes, DEN-1 to DEN-4, which cause serious problems of morbidity and mortality. Dengue is emerging rapidly as one of the most important public health problems in countries of the Asia-Pacific region with nearly 1.8 billion people in the region at risk, compared to an estimated total of 2.5 billion globally (WHO 2009). The disease has resulted in widespread social and economic problems, especially among the poor, who are the most vulnerable group. There is currently no vaccine to prevent dengue virus infection making it difficult to control and manage the disease, although considerable efforts have been made, including vector control, sanctions, law enforcement and public education (www.who.int). A DEN vaccine must be tetravalent, as immunity to a single serotype does not offer cross-protection against the other serotypes the yeast Pichia pastoris. In this study, we aim to develop a similar envelope domain III (EDIII)-based chimeric antigen which elicits neutralizing antibodies against all four DEN serotypes. The antigen will be expressed in tobacco chloroplasts, aiming for a cost-effective and safe production system by joint efforts of Indo-Norwegian bilateral collaboration.
Forfattere
Merete Wiken DeesSammendrag
Det er ikke registrert sammendrag
Forfattere
Merete Wiken DeesSammendrag
Det er ikke registrert sammendrag
Sammendrag
Det er ikke registrert sammendrag
Forfattere
Kirsten TørresenSammendrag
Det er ikke registrert sammendrag
Forfattere
Kirsten TørresenSammendrag
Sammenlikning av biologi og bekjemping av burot (Artemisia vulgaris) mellom Nord-Amerika og Europa.
Sammendrag
Comparison of biology and mangement of mugwort (Artemisia vulgaris) between North America and Europe. Sammenlikning av biologi og bekjemping av burot (Artemisia vulgaris) mellom Nord-Amerika og Europa.
Forfattere
Lars Nesheim Anne LangerudSammendrag
Dette er en forvaltningsoppgave som gjennomføres på oppdrag fra Mattilsynet (http://www.mattilsynet.no/). Målet er å framskaffe resultater for godkjenning av nye sorter for opptak på norsk sortsliste. Prøvingen er en kontinuerlig, ikke tidsavgrenset prøving. Flerårige arter legges ut to ganger med tre registrerings- og høsteår etter hvert utlegg. Ettårige arter prøves i tre år. Artene blir som hovedregel prøvd i fem distrikter, Østlandet, Fjellbygdene, Vestlandet, Midt-Norge og Nord-Norge. I 2010 var det sorter innen artene timotei, engsvingel, strandsvingel, raigras (flerårig), raisvingel og westerwoldsk (ettårig) raigras som var ferdig testet. I alt 12 sorter var ferdig testet og av disse er 4 anbefalt godkjent: 1 timoteisort, 1 engsvingelsort, 1 strandsvingelsort og 1 sort av westerwoldsk raigras.
Sammendrag
Colletotrichum acutatum causes black spot in strawberry (Fragaria × ananassa), but it has also been isolated from 30 other cultivated and non-cultivated plant species in Norway, including almost all fruit and berry crops. Bitter rot, which is caused by C. acutatum, is a severe disease in sweet and sour cherry and apple. We have studied the possibility of cross infection of isolates from other hosts and the potential aggressiveness of these isolates on strawberry. Molecular analyses (AFLP) have shown that isolates collected in Norway could be separated into three major phylogenetic groups in which isolates collected from either Prunus spp., Malus domestica or Fragaria × ananassa predominated. Experiments were carried out under laboratory, greenhouse and field conditions, and strawberry fruits, leaves and stolons were inoculated. All experiments showed that isolates originating from the Fragaria group was much more aggressive than those from the other two groups. If detached strawberry fruits were wounded at time of inoculation, isolates from all groups developed black spot, but disease development went much slower for isolates from the Prunus or Malus groups. If not wounded, there was no or hardly any disease development caused by isolates from the latter two groups. On whole plants inoculated in the greenhouse, isolates in the Fragaria group developed an incidence of 27 to 28 % flower and fruit infections compared to 0 to 4 % for isolates from the other two groups. Under field conditions, Fragaria group isolates developed 50 to 70 % more infected fruit than the others at harvest. On stolons, we inoculated by wounding, and differences in aggressiveness between isolates were only minor. On strawberry leaf laminas, we observed that the ability to colonize the leaf surface was much larger for isolates from the Fragaria group compared to those from the other two groups. However, planting healthy strawberry transplants adjacent to infected sweet cherry trees resulted in latent infections of C. acutatum on strawberry leaves (but no visible infections on fruits), indicating that cross infection between host species may occur under field conditions.