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.
2009
Forfattere
Inger MartinussenSammendrag
Wild berries are characteristic part of the Northern nature and a potential speciality of Nordic countries. Wild berries are also a rich and valuable resource that has not yet been exploited in a satisfactory level. Approximately 90-95 per cent of the whole wild berry crop yield is left unpicked in the Nordic forests every year. The challenges of the wild berry utilization are similar in Nordic countries - the logistics of berry picking including traceability, fragmented sector structure as well as the high share of unprocessed raw material in export. The Nordic project focusing on bilberry (Vaccinium myrtillus) "Bilberry: Towards functional food markets" (2007-2009) is a part of the New Nordic Food programme funded by the Nordic Innovation Centre. The programme aims to enhance cooperation and innovation among companies that utilize the natural resources in the Nordic countries. The aim of the project is to improve wild berry production and utilization in the Nordic and global market. To achieve this goal a network between the Nordic experts presenting the different fields of the wild berry sector has been established. The project has focused on marketing research, quality issues, biodiversity and traceability of wild berries, especially bilberry. The results of the marketing survey were published in November 2008. The aim of the survey was to generate an overall picture of the companies working with wild berries in Nordic countries and gather information on the existence and willingness of the berry companies to cooperate for instance in wild berry supply, logistics, marketing or research and development
Forfattere
Yibrah Beyene Trond Hofsvang Ferdu AzerefegneSammendrag
Fenologien og migrasjon hos den plantespisende marihønen Chnootriba similis ble undersøkt i Etiopia i årene 2003-2005 langs to elver og i byggåkre 2004-2005. Arten overlever i tørkeperioder langs elvene som voksne i diapause som avsluttes ca. midt i januar. De migrerer til åkre i mars - april. Opphøret av diapause og migrasjon påvirkes av nedbør. Det er to generasjoner i året. Voksne fra den andre generasjonen migrerer til elvene i september - oktober. Arten er først og fremst et skadedyr på unge planter.
Forfattere
Erik JonerSammendrag
Radiointervju om mulige negative miljøeffekter av nanomaterialer.
Forfattere
Erik JonerSammendrag
Et radioforedrag om nanomaterialer og deres potensielle negative miljøeffekter. Både golfkøller, kjøleskap og solkrem har nanoteknologi til felles. Denne teknologien er fremdeles i sin spede barndom men til tross for det er vi fullstendig omgitt av den og vi fungerer alle sammen som en slags forsøkskaniner. Sier dagens foredragsholder seniorforsker ved bioforsk på ÅS, Erik Joner i dette P2-akademiet.
Sammendrag
Members of the APSES family of fungal proteins have been identified as key regulators of fungal development, controlling processes such as mating, sporulation and dimorphic growth. We deleted the FgStuA gene in Fusarium graminearum and show that the mutant is greatly impaired in spore development, pathogenicity and secondary metabolism. FgStuA is closely related to FoStuA in F. oxysporum, but unlike FoStuA mutants the FgStuA mutants were greatly reduced in pathogenicity both on wheat and apple slices. The lack of ability to cause disease on wheat heads may be due to lack of trichothecene accumulation in planta. The FgStuA mutant also had a white/yellow mycelial phenotype compared to the red pigmented (aurofusarin) wild-type, had reduced aerial mycelium, susceptibility to oxidative stress, and had a less hydrophobic surface. Microarray analysis showed that most phenotypes could be inferred from gene expression data, such as down-regulation of the trichothecene gene cluster in the mutant. In an attempt to separate primary and secondary effects of FgStuA deletion, we carefully examined gene expression data together with promoter analysis and comparative genomics. The genes flanking FgStuA are conserved and syntenous in other fungal genomes and contain a gene encoding a putative clock controlled protein. FgStuAp and other APSES proteins share significant homology with DNA-binding domains of transcription factors controlling the critical G1/S phase cell cycle transition in both S. cerevisiae and S. pombe. Genes within MIPS Functional Category (FunCat) 10 "Cell cycle and DNA processing" are enriched among those more highly expressed in the FgStuA mutant than wild-type. Aspergillus StuAp response elements (A/TCGCGT/ANA/C) also were found highly enriched in promoter sequences for FunCat 10 genes, compared to the genome as a whole. Our results suggests that FgStuAp may act primarily as a repressor involved in cell cycle regulation, and may act only secondarily on sporulation, pathogenicity, and secondary metabolism.
Sammendrag
Members of the APSES family of fungal proteins have been identified as key regulators of fungal development, controlling processes such as mating, sporulation and dimorphic growth. We deleted the FgStuA gene in Fusarium graminearum and show that the mutant is greatly impaired in spore development, pathogenicity and secondary metabolism. FgStuA is closely related to FoStuA in F. oxysporum, but unlike FoStuA mutants the FgStuA mutants were greatly reduced in pathogenicity both on wheat and apple slices. The lack of ability to cause disease on wheat heads may be due to lack of trichothecene accumulation in planta. The FgStuA mutant also had a white/yellow mycelial phenotype compared to the red pigmented (aurofusarin) wild-type, had reduced aerial mycelium, susceptibility to oxidative stress, and had a less hydrophobic surface. Microarray analysis showed that most phenotypes could be inferred from gene expression data, such as down-regulation of the trichothecene gene cluster in the mutant. In an attempt to separate primary and secondary effects of FgStuA deletion, we carefully examined gene expression data together with promoter analysis and comparative genomics. The genes flanking FgStuA are conserved and syntenous in other fungal genomes and contain a gene encoding a putative clock controlled protein. FgStuAp and other APSES proteins share significant homology with DNA-binding domains of transcription factors controlling the critical G1/S phase cell cycle transition in both S. cerevisiae and S. pombe. Genes within MIPS Functional Category (FunCat) 10 "Cell cycle and DNA processing" are enriched among those more highly expressed in the FgStuA mutant than wild-type. Aspergillus StuAp response elements (A/TCGCGT/ANA/C) also were found highly enriched in promoter sequences for FunCat 10 genes, compared to the genome as a whole. Our results suggests that FgStuAp may act primarily as a repressor involved in cell cycle regulation, and may act only secondarily on sporulation, pathogenicity, and secondary metabolism.
Forfattere
Randi Wikdahl Anne Kjersti Bakken Anne LangerudSammendrag
Rapporten er lukket.
Forfattere
Torstein H. Garmo Åshild T. Randby Anne Kjersti BakkenSammendrag
For å oppnå ønska kvalitet på hausta grovfôr, kan det lønne seg å bestemme utviklingstrinnet til graset etter ein talbasert skala. Artikkelen forklarer koss det kan gjerast og viser eksempel på korleis kvaliteten er på ulike utviklingstrinn.
Forfattere
Brita ToppeSammendrag
Plantevernleksikonet. Skadegjørere: Asaleavisnesjuke - Hvitkragesopp - Rot- og knollråte - Corynespora-bladflekk - Torvskimmel - Mjøldogg - Pelargoniumrust - Krypmugg - Kransskimmel - Rotsvartsopp - Primulabladflekk - Fusariose - Bakterievisning på pelargonium - Bakterievisning på begonia - Bakteriebladgalle - Prydplantebløtråte - Bakteriesvulst - Bakteriebladflekk på primula - Krysantemumdvergsjukeviroid - Prunus-ringflekkvirus - Tobakknekrosevirus - Tobakkmosaikkvirus - Pelargoniumblomsterspetningsvirus - Tospovirus - For hver skadegjører gis en oversikt over symptomer/skadevirkning, vertplanter, overlevelse og spredning og bekjempelse.
Forfattere
Leif SundheimSammendrag
Plantevernleksikonet. Skadegjørere:Flekkskurv - Ertefotsjuke - Bærbuskbladflekksopp - Mjølauke - Kjevlesopp - Bladfaksbrunflekk - Bringebærskuddsjuke - Filtsopp - Rotdreper - Kløverråte - Kløverskålsopp - Bærbuskbladfallsopp - Greindød - Rosestråleflekk - Erteflekk - Persillebladflekk - Selleribladflekk - Ertemjøldogg - Solbærmjøldogg - Rød tråd - Filtrust - Eplerust - Rapprust - Roserust - Hekseringer - Honningsopp - Rhizoctonia-brunflekk - Hundegrasflekk - Timotei-øyeflekk - Kløverbrann - Grå øyeflekk i gras - Pærebrann - Gras-visnesjuke - Vorteskurv - For hver skadegjører gis en oversikt over symptomer/skadevirkning, vertplanter, overlevelse og spredning og bekjempelse.