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
Nina TrandemSammendrag
Omtale av epleviklermodellen som Marc Trapman har lagd i RIMpro. Denne er nå lagt ut på VIPS for å få erfaringer, men den er ikke validert for norske forhold.
Sammendrag
One female of Atractotomus parvulus Reuter, 1878 was collected from Pinus mugo Turra at AAY Lillesand EIS 6, 16.august 2007.
Forfattere
Nina TrandemSammendrag
Plantevernleksikonet. Skadegjørere: Bærtege Jordbærtege Jordbærmellus Skumsikade Ripsrotlus Liten stikkelsbærbladlus Liten bringebærbladlus Liten ripsbladlus Liten solbærbladlus Bjørnebærgrasbladlus Lauvtrebille Knoppsnutebille Jordbærsnutebille Bringebærbille Stikkelsbærpyralide Stikkelsbærmåler Bringebærmøll Ripsskuddmøll Ripsglassvinge Bringebærglassvinge Bringebærbarkgallmygg Solbærgallmygg Bringebærgallmygg Bringebærflue Stikkelsbærbladveps Bringebærbladveps Gul bjørnebærbladveps Jordbærmidd Solbærgallmidd Bjørnebærbladmidd Solbærbladmidd For hver skadegjører gis en oversikt over utseende, utbredelse, vertplanter, livssyklus, skadevirkninger og bekjempelse.
Forfattere
Ricardo Holgado Kari Anne Oppen Christer MagnussonSammendrag
Soil samples from a growth depression in potato (Solanum tuberosum) cv. Saturna field in Grue, eastern Norway, yielded large numbers of root lesion nematodes, Pratylenchus penetrans. Yield of potato was reduced by 50% in the affected area of the field. Transect-sampling showed plant growth to be negatively correlated with densities of P. penetrans and suggested a damage threshold of potato to the nematode of 100 specimens per 250 g of soil. Common scab (Streptomyces scabies) occurred frequently in the affected area. Pratylenchus penetrans was present in roots, underground stems, stolons and tubers. In tubers, nematodes were detected inside cross-lesions typical of common scab, and occurred also in the outermost 0.5 mm tissue associated with such lesions. On potato cv. Saturna grown in a green-house, P. penetrans alone induced tuber lesions similar to those of common scab. Also, the combined inoculation of the bacterium and the nematode seemed to enhance symptom expression. Pratylenchus penetrans survives storage of potatoes, from which new infections may develop. Hence, potato tubers do appear to be an important means for the spread of P. penetrans to new areas.
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.
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
Arne HermansenSammendrag
For hver skadegjører gis en oversikt over symptomer/skadevirkning, vertplanter, overlevelse og spredning og bekjempelse.
Forfattere
Anette SundbyeSammendrag
Plantevernleksikonet. Skadegjørere: Veksthusmellus Bomullsmellus Ferskenbladlus Grønnflekket veksthusbladlus Agurkbladlus Potetbladlus Rosebladlus Gammafly Hærmygg Søramerikansk minerflue Floridaminerflue Amerikansk blomstertrips Cyclamenmidd Skuddtoppmidd For hver skadegjører gis en oversikt over utseende, utbredelse, vertplanter, livssyklus, skadevirkninger og bekjempelse.
Forfattere
Richard MeadowSammendrag
Gulrotsuger Jordlopper Bølgestripet nepejordloppe Rettstripet nepejordloppe Krokstripet nepejordloppe Svart nepejordloppe Betejordloppe Skyggevikler Kålfly Kålmøll Purremøll Liten kålsommerfugl Stor kålsommerfugl Løkflue Kålfluer (liten & stor) For hver skadegjører gis en oversikt over utseende, utbredelse, vertplanter, livssyklus, skadevirkninger og bekjempelse.