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Publications

NIBIOs employees contribute to several hundred scientific articles and research reports every year. You can browse or search in our collection which contains references and links to these publications as well as other research and dissemination activities. The collection is continously updated with new and historical material.

2026

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Sammendrag

The predicted increase in frequency and duration of winter warming episodes (WWEs) at higher northern latitudes is expected to negatively impact the forage production in this region. The formation of non-permeable ice cover due to WWEs creates hypoxic or anoxic conditions for plants, leading to severe winter damage. Knowledge about molecular mechanisms underlying various winter stresses, including ice encasement, is crucial to develop cultivars with better winter survival under changing climatic conditions. To date, very little is known about the molecular stress responses under ice encasement stress. To address this knowledge gap, in this study, we aimed to study ice encasement stress responses at the molecular level in the perennial forage grass timothy (Phleum pratense L.) by RNAseq. Genes encoding ethylene-responsive transcription factors, alcohol dehydrogenase 3, pyruvate decarboxylase 2, pyruvate kinase 1, dehydrins, early response to dehydration 15, glutathione reductase, and superoxide dismutase were highly upregulated under ice encasement conditions. KEGG enrichment analysis identified glycolysis, glutathione metabolism, and fructose and mannose metabolism as highly enriched among upregulated genes, whereas photosynthesis, flavonoid biosynthesis, motor proteins, and glycerolipid metabolism were highly enriched among downregulated genes. As initially hypothesized based on the nature of stress, the results indicate a substantial overlap of ice encasement stress responses with those of hypoxia and freezing stresses. Based on our findings and a comprehensive literature review on freezing and hypoxia stress responses, together with physiological studies of plants under ice encasement, we outline the potential mechanisms behind higher ice encasement tolerance in timothy.

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Sammendrag

Consumers play a key role in the much-needed transition to a more sustainable food system. However, consumers' willingness and ability to undergo behavioural changes may depend on personality traits as well as their motivation and awareness of the need for a more sustainable food consumption. Segmentation of consumers can therefore be useful for understanding individual differences and for the development of targeted interventions for behavioural changes. In this paper, an instrument to profile and classify Norwegian consumers is developed using a national representative sample (N = 3600). The proposed instrument comprises twenty items to measure personality traits defined by a condensed version of the Big Five Inventory as well as seven items related to attitudes to food waste, reuse and recycling. Three segments characterised by differences in openness to experience, and attitudes to food waste and reuse/recycling were identified. The segments are profiled on habits related to purchase behaviour, meal planning, as well as frequency of meat and vegetable consumption. Based on the profiles, the segments were labelled Need to Change (30%), Want to Change (41%) and Hard to Change (29%) emphasizing either low concern about food waste (Need to Change), higher concern and openness to change (Want to Change) or low scores on openness (Hard to Change). We propose that the developed instrument can be applied for profiling consumers in the Norwegian context, for tailoring consumer interventions. The study underscores that supporting the food system transition requires differentiated consumer strategies: engaging the motivated, empowering the open, and carefully reaching the resistant.