Blar i NIBIO Brage på forfatter "Alfredsen, Gry"
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Accessibility of hydroxyl groups in furfurylated wood at different weight percent gains and during Rhodonia placenta decay
Beck, Greeley; Hill, Callum Aidan Stephen; Cocher, Pierre Martin; Alfredsen, Gry (Journal article; Peer reviewed, 2019) -
Acetylation of Pinus radiata delays hydrolytic depolymerisation by the brown-rot fungus Rhondonia placenta
Beck, Harold Greeley; Hegnar, Olav Aaseth; Fossdal, Carl Gunnar; Alfredsen, Gry (Journal article; Peer reviewed, 2018-11-01)Acetylation of wood can provide protection against wood deteriorating fungi, but the exact degradation me- chanism remains unclear. The aim of this study was to determine the effect of acetylation of Pinus radiata wood ... -
Biological durability of pine wood
Brischke, Christian; Alfredsen, Gry (Peer reviewed; Journal article, 2022-08-08)The genus Pinus represents more than a hundred different tree species, most of them forming stems that can be commercially utilised for both timber and wood pulp industry. Pines are native to most of the Northern Hemisphere, ... -
Cell wall changes during brown rot degradation of furfurylated and acetylated wood
Thygesen, Lisbeth G.; Beck, Greeley; Nagy, Nina Elisabeth; Alfredsen, Gry (Peer reviewed; Journal article, 2021-05-30)This study explores cell wall changes in Radiata pine (Pinus radiata) after modification with acetylation or furfurylation and subsequent prolonged subjection to the brown rot fungus R. placenta with the aim of better ... -
Characterisation of Postia placenta colonisation during 36 weeks in acetylated southern yellow pine sapwood at three acetylation levels including genomic DNA and gene expression quantification of the fungus
Alfredsen, Gry; Pilgård, Annica; Fossdal, Carl Gunnar (Journal article; Peer reviewed, 2016-05-09)One way to protect timber in service against basidiomycete deterioration is by means of acetylation via reaction with acetic anhydride. The reason why acetylated wood (WAc) is resistant against decay fungi is still not ... -
Characterization of an LPMO from brown-rot fungus Gloeophyllum trabeum with broad xyloglucan specificity and its action on cellulose-xyloglucan complexes
Kojima, Yuka; Varnai, Aniko; Ishida, Takuya; Sunagawa, Naoki; Petrovic, Dejan; Igarashi, Kiyohiko; Jellison, Jody; Goodell, Barry; Alfredsen, Gry; Westereng, Bjørge; Eijsink, Vincent; Yoshida, Makoto (Journal article; Peer reviewed, 2016)Fungi secrete a set of glycoside hydrolases and lytic polysaccharide monooxygenases (LPMOs) to degrade plant polysaccharides. Brown-rot fungi, such as Gloeophyllum trabeum, tend to have few LPMOs, and information on these ... -
Framskrivninger for arealbrukssektoren (LULUCF) under FNs klimakonvensjon og EUs klimarammeverk
Mohr, Christian Wilhelm; Søgaard, Gunnhild; Alfredsen, Gry; Fernández, Clara Antón; Hobrak, Katharina Therese; Sevillano, Ignacio (NIBIO Rapport 8(124) 2022, Research report, 2022)Arealbrukssektoren (engelsk: Land Use, Land-Use Change and Forestry, LULUCF) omfatter arealbruk og arealbruksendringer, med tilhørende utslipp og opptak av CO2, CH4 og N2O, og er en del av det nasjonale klimagassregnskapet ... -
Framskrivninger for arealbrukssektoren – under FNs klimakonvensjon, Kyotoprotokollen og EUs rammeverk
Søgaard, Gunnhild; Mohr, Christian Wilhelm; Antón-Fernández, Clara; Alfredsen, Gry; Astrup, Rasmus Andreas; Breidenbach, Johannes; Eriksen, Rune; Granhus, Aksel; Smith, Aaron (NIBIO Rapport;5(114) 2019, Research report, 2019-12)I denne rapporten presenteres framskrivninger for opptak og utslipp fra arealbrukssektoren (eng. Land Use, Land-Use Change and Forestry; LULUCF) frem til 2100. Framskrivninger av opptak og utslipp av CO2 og andre klimagasser ... -
Framskrivninger, tiltaks- og virkemiddelanalyser for arealbrukssektoren: Beskrivelse og evaluering av dagens metodikk
Søgaard, Gunnhild; Alfredsen, Gry; Belbo, Helmer; Fernández, Clara Antón; Hobrak, Katharina Therese; Mohr, Christian Wilhelm; Sevillano, Ignacio; Øistad, Knut (NIBIO Rapport, Research report, 2023)Denne rapporten er skrevet på oppdrag fra Teknisk beregningsutvalg for klima (TBU klima). TBU klima skal ifølge mandatet gi råd om forbedringer i metoder for tiltaks- og virkemiddelanalyser på klimaområdet. I årsrapporten ... -
Functional genomics of wood degradation - a project summary
Alfredsen, Gry (Chapter, 2011)Modified wood can provide protection against a range of wood deteriorating organisms. Several hypotheses have been put forward for the mode of action against wood decaying fungi, including inhibition of action of specific ... -
Fungal attack on archaeological wooden artefacts in the Arctic—implications in a changing climate
Pedersen, Nanna Bjerregaard; Matthiesen, Henning; Blanchette, Robert A.; Alfredsen, Gry; Held, Benjamin W.; Westergaard‑Nielsen, Andreas; Hollesen, Jørgen (Peer reviewed; Journal article, 2020-09-03)Climate change is expected to accelerate the microbial degradation of the many extraordinary well-preserved organic archaeological deposits found in the Arctic. This could potentially lead to a major loss of wooden artefacts ... -
Furfurylated wood: impact on Postia placenta gene expression and oxalate crystal formation
Alfredsen, Gry; Fossdal, Carl Gunnar; Nagy, Nina Elisabeth; Jody, Jellison; Barry, Goodell (Journal article; Peer reviewed, 2016-03-24)Modified wood can provide protection against a range of wood deteriorating organisms. Several hypotheses have been put forward regarding the protection mechanisms against wood decaying fungi including fungal enzyme ... -
Gran som ubehandlet utvendig kledning
Flæte, Per Otto; Alfredsen, Gry (Glimt fra skogforskningen;8-2004, Others, 2004) -
Hyperspectral imaging as a tool for profiling basidiomycete decay of Pinus sylvestris L.
Jochemsen, Arnoud; Alfredsen, Gry; Burud, Ingunn (Peer reviewed; Journal article, 2022-08-02)Given the right climatic and environmental conditions, a range of microorganisms can deteriorate wood. Decay by basidiomycete fungi accounts for significant volumes of wood in service that need to be replaced. In this ... -
Kitosan fra rekeskall til impregnering av trevirke
Eikenes, Morten; Alfredsen, Gry (Glimt fra skogforskningen;10-2003, Others, 2003) -
Klimakur 2030 – beskrivelse av utvalgte klimatiltak knyttet til skog
Søgaard, Gunnhild; Alfredsen, Gry; Antón-Fernández, Clara; Astrup, Rasmus Andreas; Blom, Hans H.; Clarke, Nicholas; Eriksen, Rune; Granhus, Aksel; Hanssen, Kjersti Holt; Hietala, Ari Mikko; Mohr, Christian Wilhelm; Nygaard, Per Holm; Solberg, Svein; Steffenrem, Arne (NIBIO Rapport;6(9) 2020, Research report, 2020-02)Skogen i Norge har et årlig netto opptak i underkant av 30 mill. tonn CO2. Størrelsen på opptaket påvirkes av forvaltningen av skogarealene, både gjennom endringer i totalarealet (avskoging og påskoging), og forvaltningen ... -
Klimakur 2030 – beskrivelse av utvalgte klimatiltak knyttet til skog. Supplement.
Søgaard, Gunnhild; Alfredsen, Gry; Fernández, Clara Antón; Astrup, Rasmus Andreas; Belbo, Helmer; Clarke, Nicholas; Eriksen, Rune; Granhus, Aksel; Hanssen, Kjersti Holt; Hietala, Ari Mikko; Kockum, Frans; Mohr, Christian Wilhelm; Nordbakken, Jørn-Frode; Stokland, Jogeir Nicolai; Sverker, Jennie; Økland, Tonje (NIBIO rapport;6(153) 2020, Research report, 2020-11)Det årlige netto opptaket i skogen i Norge økte frem til 2009 (over 35 mill. tonn), og har etter det vist en avtakende trend. I 2018 var det et netto opptak på i underkant av 28 millioner tonn CO2- ekvivalenter. Størrelsen ... -
Kojima, Y., Várnai, A., Ishida, T., Sunagawa, N., Petrovic, D. M., Igarashi, K., ... & Eijsink, V. G. (2016). A lytic polysaccharide monooxygenase with broad xyloglucan specificity from the brown-rot fungus Gloeophyllum trabeum and its action on cellulose-xyloglucan complexes. Applied and environmental microbiology, 82(22), 6557-6572.
Kojima, Yuka; Varnai, Aniko; Ishida, Takuya; Sunagawa, Naoki; Petrovic, Dejan; Igarashi, Kiyohiko; Jellison, Jody; Goodell, Barry; Alfredsen, Gry; Westereng, Bjørge; Eijsink, Vincentius Gerardus Henricus; Yoshida, Makoto (Journal article; Peer reviewed, 2016)Fungi secrete a set of glycoside hydrolases and lytic polysaccharide monooxygenases (LPMOs) to degrade plant polysaccharides. Brown-rot fungi, such as Gloeophyllum trabeum, tend to have few LPMOs, and information on these ... -
Land based and marine based bioresources for feed production in Norway
Stokstad, Grete; Alfredsen, Gry (NIBIO Rapport, Research report, 2023)This report provides an overview of resources for feed production from Norwegian bioresources. We look at present use of agricultural land, outfield pasture, forestry production and processing and present harvesting of ... -
Lang levetid for trevirke uten CCA - Er det mulig?
Alfredsen, Gry (Others, 2007)De nordiske treslagene er generelt ikke regnet som spesielt holdbare mot biologisk nedbrytning. I et kaldt og temperert klima kan tre likevel ha lang levetid om det behandles og brukes riktig. Etter at det ble lagt ...