Now showing items 181-200 of 534

    • Moth species richness and diversity decline in a 30‑year time series in Norway, irrespective of species’ latitudinal range extent and habitat 

      Burner, Ryan C.; Selås, Vidar; Kobro, Sverre; Jacobsen, Rannveig Margrete; Sverdrup-Thygeson, Anne (Peer reviewed; Journal article, 2021-10-25)
      Introduction Insects are reported to be in decline around the globe, but long-term datasets are rare. The causes of these trends are elusive, with changes in land use and climate among the top candidates. Yet if species ...
    • Været i vekstsesongen 2021 

      Eikemo, Håvard; Nordskog, Berit; Linnestad, Brita (NIBIO-pop;7(37) 2021, Journal article, 2021-12)
      Våronna starta omtrent som normalt i april mange steder i 2021, men lave temperaturer og mye nedbør i mai forsinka spiringa. Både juni og juli var varme i det meste av landet, men med varierende nedbørsmengder. Temperaturer ...
    • Summer Heatwave Impacts on the European Kelp Saccharina latissima Across Its Latitudinal Distribution Gradient 

      Diehl, Nora; Roleda, Michael; Bartsch, Inka; Karsten, Ulf; Bischof, Kai (Peer reviewed; Journal article, 2021-10-11)
      Kelps are important foundation species in coastal ecosystems currently experiencing pronounced shifts in their distribution patterns caused by ocean warming. While some populations found at species’ warm distribution edges ...
    • Highly Clonal Structure and Abundance of One Haplotype Characterise the Diplodia sapinea Populations in Europe and Western Asia 

      Adamson, Kalev; Laas, Marili; Blumenstein, Kathrin; Busskamp, Johanna; Langer, Gitta J.; Klavina, Darta; Kaur, Anu; Maaten, Tiit; Mullett, Martin S.; Müller, Michael M.; Ondrušková, Emília; Padari, Allar; Pilt, Enn; Riit, Taavi; Solheim, Halvor; Soonvald, Liina; Tedersoo, Leho; Terhonen, Eeva; Drenkhan, Rein (Peer reviewed; Journal article, 2021-08-04)
      Diplodia sapinea is a cosmopolitan endophyte and opportunistic pathogen having occurred on several conifer species in Europe for at least 200 years. In Europe, disease outbreaks have increased on several Pinus spp. in the ...
    • Genetic analyses of saprolegnia strains isolated from salmonid fish of different geographic origin document the connection between pathogenicity and molecular diversity 

      Elameen, Abdelhameed; Stueland, Svein; Kristensen, Ralf; Fristad, Rosa Ferreira; Vrålstad, Trude; Skaar, Ida (Peer reviewed; Journal article, 2021-08-30)
      Saprolegnia parasitica is recognized as one of the most important oomycetes pests of salmon and trout species. The amplified fragment length polymorphism (AFLP) and method sequence data of the internal transcribed spacer ...
    • Kartlegging av Phytophthora langs Akerselva ved Bjølsen 2021 Phytophthora survey along Akerselva at Bjølsen in Oslo 2021 

      Pettersson, Martin; Brurberg, May Bente; Talgø, Venche (NIBIO-rapport;7(197) 2021, Research report, 2021-12)
      Phytophthora er en organismeslekt med mange fremmede, invaderende planteskadegjørere som kan føre til store skader på både tre- og urteaktige planter. De fleste Phytophthora er jordboende arter som angriper plantenes røtter ...
    • Biotic threats for 23 major non-native tree species in Europe 

      Pötzelsberger, Elisabeth; Gossner, Martin M.; Beenken, Ludwig; Gazda, Anna; Petr, Michal; Ylioja, Tiina; La Porta, Nicola; Avtzis, Dimitrios N.; Bay, Elodie; De Groot, Maarten; Drenkhan, Rein; Duduman, Mihai-Leonard; Enderle, Rasmus; Georgieva, Margarita; Hietala, Ari Mikko; Hoppe, Björn; Jactel, Herve; Jarni, Kristjan; Keren, Srđan; Keseru, Zsolt; Koprowski, Marcin; Kormuťák, Andrej; Lombardero, María Josefa; Lukjanova, Aljona; Marozas, Vitas; Mauri, Edurad; Monteverdi, Maria Cristina; Nygaard, Per Holm; Ogris, Nikica; Olenici, Nicolai; Orazio, Christophe; Perny, Bernhard; Pinto, Glória; Power, Michael; Puchalka, Radoslaw; Ravn, Hans Peter; Sevillano, Ignacio; Stroheker, Sophie; Taylor, Paul; Tsopelas, Panagiotis; Urban, Josef; Voolma, Kaljo; Westergren, Marjana; Witzell, Johanna; Zborovska, Olga; Zlatkovic, Milica (Peer reviewed; Journal article, 2021-08-06)
      For non-native tree species with an origin outside of Europe a detailed compilation of enemy species including the severity of their attack is lacking up to now. We collected information on native and non-native species ...
    • Infection biology as the basis of integrated control of apple canker (Neonectria ditissima) in Northern Europe 

      Weber, Roland W. S.; Børve, Jorunn (Peer reviewed; Journal article, 2021-01-25)
      Background: European canker, caused by Neonectria ditissima, is a disease of worldwide importance in apple production, yet knowledge about it is limited, highly regional and sometimes contradictory. This is an obstacle to ...
    • Bioactive peptides from microalgae: Focus on anti-cancer and immunomodulating activity 

      Skjånes, Kari; Aesoy, Reidun; Herfindal, Lars; Skomedal, Hanne (Peer reviewed; Journal article, 2021-06-03)
      In addition to the rapidly expanding field of using microalgae for food and feed, microalgae represent a tremendous potential for new bioactive compounds with health-promoting effects. One field where new therapeutics is ...
    • Overvåkingsresultater for plantevernmidler i næringsmidler 2020 

      Bolli, Randi; Christiansen, Agnethe (NIBIO-pop;7(30) 2021, Journal article, 2021-11)
      I 2020 ble det analysert 1107 prøver av ferske, fryste eller bearbeidede matvarer fra konvensjonell produksjon og 167 prøver av økologiske matvarer i overvåkingsprogrammet «Rester av plantevernmidler i næringsmidler» som ...
    • SpRY greatly expands the genome editing scope in rice with highly flexible PAM recognition 

      Xu, Ziyan; Kuang, Yongjie; Ren, Bin; Yan, Daqi; Yan, Fang; Spetz, Carl; Sun, Wenxian; Wang, Guirong; Zhou, Xueping; Zhou, Huanbin (Peer reviewed; Journal article, 2021-01-04)
      Background Plant genome engineering mediated by various CRISPR-based tools requires specific protospacer adjacent motifs (PAMs), such as the well-performed NGG, NG, and NNG, to initiate target recognition, which notably ...
    • 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 ...
    • Identification and Isolation Pattern of Globisporangium spp. from a Sanionia Moss Colony in Ny-Ålesund, Spitsbergen Is., Norway from 2006 to 2018 

      Tojo, Motoaki; Fujii, Natsumi; Yagi, Hironori; Yamashita, Yuki; Tokura, Katsuyuki; Kida, Kenichi; Hakoda, Akiho; Herrero, Maria-Luz; Hoshino, Tamotsu; Uchida, Masaki (Peer reviewed; Journal article, 2021-09-09)
      Globisporangium spp. are soil-inhabiting oomycetes distributed worldwide, including in polar regions. Some species of the genus are known as important plant pathogens. This study aimed to clarify the species construction ...
    • Leaching and surface runoff after fall application of fungicides on putting greens 

      Aamlid, Trygve; Almvik, Marit; Pettersen, Trond; Bolli, Randi (Peer reviewed; Journal article, 2020-12-08)
      Many greenkeepers and authorities are concerned about the environmental risks resulting from pesticide use on golf courses. We studied leaching and surface runoff of fungicides and metabolites during two winter seasons ...
    • Challenges and prospects of plant-derived oral vaccines against hepatitis b and c viruses 

      Pantazica, Ana-Maria Madalina; Cucos, Lia-Maria; Stavaru, Crina; Clarke, Jihong Liu; Branza-Nichita, Norica (Peer reviewed; Journal article, 2021-09-28)
      Hepatitis B and C viruses chronically affect approximately 3.5% of the global population, causing more than 800,000 deaths yearly due to severe liver pathogenesis. Current HBV vaccines have significantly contributed to the ...
    • A highly-contiguous genome assembly of the Eurasian spruce bark beetle, Ips typographus, provides insight into a major forest pest 

      Powell, Daniel; Groβe-Wilde, Ewald; Krokene, Paal; Roy, Amit; Chakraborty, Amrita; Löfstedt, Christer; Vogel, Heiko; Andersson, Martin N.; Schlyter, Fredrik (Peer reviewed; Journal article, 2021-09-09)
      Conifer-feeding bark beetles are important herbivores and decomposers in forest ecosystems. These species complete their life cycle in nutritionally poor substrates and some can kill enormous numbers of trees during ...
    • Seasonal variation in Norway spruce response to inoculation with bark beetle-associated bluestain fungi one year after a severe drought 

      Öhrn, Petter; Berlin, Mats; Elfstrand, Malin; Krokene, Paal; Jönsson, Anna Maria (Peer reviewed; Journal article, 2021-06-11)
      In 2018, up to 4 million m3 Norway spruce was killed by the spruce bark beetle Ips typographus in Sweden. The event was unique for Sweden, in terms of both affected volume and the fact that it was triggered by severe drought ...
    • Stationary Soil Steaming to Combat Invasive Plant Species for Soil Relocation 

      Bitarafan, Zahra; Kaczmarek-Derda, Wiktoria Anna; Brandsæter, Lars Olav; Fløistad, Inger (Peer reviewed; Journal article, 2021-09-02)
      Eradication of alien invasive species in the soil with steam as an alternative to chemical fumigation may allow contaminated soil to be reused. We have investigated steam disinfestation of soil to combat invasive plant ...
    • Skogens helsetilstand i Norge. Resultater fra skogskadeovervåkingen i 2020. 

      Timmermann, Volkmar; Beachell, Andreas Myki; Brurberg, May Bente; Børja, Isabella; Clarke, Nicholas; Fløistad, Inger; Hietala, Ari Mikko; Hylen, Gro; Jepsen, Jane Uhd; Nordbakken, Jørn-Frode; Pettersson, Martin; Solberg, Sverre; Solheim, Halvor; Talgø, Venche; Vindstad, Ole Petter Laksforsmo; Økland, Bjørn; Aas, Wenche (NIBIO-rapport;7(166) 2021, Research report, 2021-10)
      Skogens helsetilstand påvirkes i stor grad av klima og værforhold, enten direkte ved tørke, frost og vind, eller indirekte ved at klimaet påvirker omfanget av soppsykdommer og insektangrep. Klimaendringene og den forventede ...
    • The microRNA response associated with methyl jasmonate-induced resistance in Norway spruce bark 

      Wilkinson, Samuel; Vivian-Smith, Adam; Krokene, Paal; Magerøy, Melissa (Peer reviewed; Journal article, 2021-05-15)
      Methyl jasmonate (MeJA) treatment elicits induced resistance (IR) against pests and diseases in Norway spruce (Picea abies). We recently demonstrated using mRNA-seq that this MeJA-IR is associated with both a prolonged ...