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.
2025
Forfattere
Lucía D. Moreyra Alfonso Susanna Juan Antonio Calleja Jennifer R. Ackerfield Turan Arabacı Carme Blanco-Gavaldà Christian Brochmann Tuncay Dirmenci Kazumi Fujikawa Mercè Galbany-Casals Tiangang Gao Abel Gizaw Seid Iraj Mehregan Roser Vilatersana Juan Viruel Bayram Yıldız Frederik Leliaert Alexey P. Seregin Cristina RoquetSammendrag
Widely distributed plant genera offer insights into biogeographic processes and biodiversity. The Carduus-Cirsium group, with over 600 species in eight genera, is diverse across the Holarctic regions, especially in the Mediterranean Basin, Southwest Asia, Japan, and North America. Despite this diversity, evolutionary and biogeographic processes within the group, particularly for the genus Cirsium, remain underexplored. This study examines the biogeographic history and diversification of the group, focusing on Cirsium, using the largest molecular dataset for the group (299 plants from 251 taxa). Phylogenomic analyses based on 350 nuclear loci, derived from target capture sequencing, revealed highly resolved and consistent phylogenetic trees, with some incongruences likely due to hybridization and incomplete lineage sorting. Ancestral range estimations suggest that the Carduus-Cirsium group originated during the Late Miocene in the Western Palearctic, particularly in the Mediterranean, Eastern Europe, or Southwest Asia. A key dispersal event to tropical eastern Africa around 10.7 million years ago led to the genera Afrocarduus and Afrocirsium, which later diversified in the Afromontane region. The two subgenera of Cirsium—Lophiolepis and Cirsium—began diversifying around 7.2–7.3 million years ago in the Western Palearctic. During the Early Pliocene, diversification rates increased, with both subgenera dispersing to Southwest Asia, where extensive in situ diversification occurred. Rapid radiations in North America and Japan during the Pleistocene were triggered by jump-dispersals events from Asia, likely driven by geographic isolation and ecological specialization. This added further layers of complexity to the already challenging taxonomic classification of Cirsium.Keywords: Biogeography; Carduinae; Cirsium; Diversification; North Hemisphere; Target-enrichment; Taxonomy.
Forfattere
Morten Rese Gijs van Erven Romy J. Veersma Gry Alfredsen Vincent Eijsink Mirjam A. Kabel Tina Rise TuvengSammendrag
Wood-degrading brown-rot fungi primarily target carbohydrates, leaving the lignin modified and potentially valuable for valorization. Here, we report a comprehensive comparison of how Gloeophyllum trabeum in vitro degrades hardwood and softwood, which have fundamentally different lignin structures. By harnessing the latest advancements in analytical methodologies, we show that G. trabeum removes more lignin from wood (up to 36%) than previously reported. The brown-rot decayed lignin appeared substantially Cα-oxidized, O-demethylated, with a reduction in interunit linkages, leading to formation of substructures indicative of Cα-Cβ, β-O, and O-4 cleavage. Our work shows that the G. trabeum conversion of hardwood and softwood lignin results in similar modifications, despite the structural differences. Furthermore, lignin modification by G. trabeum enhances the antioxidant capacity of the lignin and generates an extractable lower molecular weight fraction. These findings improve our understanding of lignin conversion by brown-rot fungi and highlight their biotechnological potential for the development of lignin-based products.
Forfattere
David Chludil Jaroslav Čepl Arne Steffenrem Jan Stejskal Christi Sagariya Torsten Pook Silvio Schueler Jiří Korecký Curt Almqvist Debojyoti Chakraborty Mats Berlin Milan LstibůrekSammendrag
Climate change poses an unprecedented threat to forest ecosystems, necessitating innovative adaptation strategies. Traditional assisted migration approaches, while promising, face challenges related to environmental constraints, forestry practices, phytosanitary risks, economic barriers, and legal constraints. This has sparked debate within the scientific community, with some advocating for the broader implementation of assisted migration despite these limitations, while others emphasize the importance of local adaptation, which may not keep pace with the rapid rate of climate change. This opinion paper proposes a novel pollen-based assisted migration strategy as a potential middle ground in this debate. By leveraging existing seed orchard infrastructure for controlled pollen transfer, this approach aims to enhance forest resilience through the introduction of genetic material from climatically suitable sources while acknowledging local adaptation. We assess the genetic implications of the proposed strategy through computer simulation. Additionally, we examine the ecological implications of assisted gene flow, discussing the potential benefits of heterosis and the risks of outbreeding depression in intra-specific hybrid populations. We further explore the advantages of pollen-based migration in mitigating phytosanitary risks, reducing economic barriers, and simplifying legal considerations compared to traditional seed or seedling transfer methods. Regional perspectives on adapting pollen-based assisted migration are provided, with specific examples from Northern and Central Europe. We highlight how this approach could be integrated into existing forestry practices and regulatory frameworks within the European Union. We conclude by advocating for the inclusion of pollen-based assisted migration in future international projects and operational forestry, emphasizing the need for adaptable policies that can support innovative forest management strategies in the face of climate change.
Forfattere
Szymon Rusinowski Jacek Krzyżak Krzysztof Sitko Alicja Szada-Borzyszkowska Jacek Borgulat Paulina Janota Radosław Stec Hans Martin Hanslin Marta PogrzebaSammendrag
Green roofs and walls offer many benefits, not only in terms of the ecosystem services, but also in terms of improving building performance. The growing medium is the most important component of green roofs and walls. It should ensure stable plant growth with minimal maintenance and the proper choice is crucial for the survival and performance of the vegetation. In the study, we investigated how the source and supply of nutrients affects plant performance in a designed substrate for green walls and roofs. Topsoil from the site of plant origin mixed with sand and compost supplemented with mineral fertilizer was used to study the growth of Trifolium medium L. and Potentilla reptans L., element contents, oxidative stress level and photosynthetic efficiency. P. reptans was in most cases insensitive to mineral fertilization, but an adequate dose of compost improved its growth. T. medium was very sensitive to excessive mineral fertilization, which significantly impaired the growth and physiological status of the plants. Compost as the sole source of additional nutrients in a topsoil-based substrate seems to be the appropriate choice when legumes are used in a green wall or green roof. From the results obtained, we can conclude that calcareous grassland species can be successfully used in designing of green urban infrastructure.
Forfattere
Trygve S. Aamlid Elin Blütecher Ellen Johanne Svalheim Annette Bär Marie Vestergaard Henriksen Ievina Sturite Nils Ragnar S. Skjørholm Elise Krey Pedersen John Ingar Øverland Kari Bysveen Astrid GissingerSammendrag
Det er ikke registrert sammendrag
Sammendrag
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Forfattere
Even Unsgård Erling Meisingset Inger Maren Rivrud Gunn Randi Fossland Pål Thorvaldsen Vebjørn Veiberg Atle MysterudSammendrag
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Sammendrag
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Forfattere
Håvard SteinshamnSammendrag
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Forfattere
Paul Eric Aspholm David Kniha Amelie Bringemeier Philipp Michel Monica Fongen Hans Nyeggen Jarle W. BjerkeSammendrag
Det er ikke registrert sammendrag