Blar i forfatter "Sigurdsson, Bjarni D."

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    • Down-regulation of the bacterial protein biosynthesis machinery in response to weeks, years, and decades of soil warming 

      Söllinger, Andrea; Séneca, Joana; Mathilde, Borg Dahl; Motleleng, Liabo Lillien; Prommer, Judith; Verbruggen, Erik; Sigurdsson, Bjarni D.; Janssens, Ivan A.; Peñuelas, Josep; Urich, Tim; Richter, Andreas; Tveit, Alexander (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-25)
      How soil microorganisms respond to global warming is key to infer future soil-climate feedbacks, yet poorly understood. Here, we applied metatranscriptomics to investigate microbial physiological responses to mediumterm (8 years) and long-term (>50 years) subarctic grassland soil warming of +6°C. Besides indications for a community-wide up-regulation of centralmetabolic pathways and cell replication, ...

    • Long-term warming-induced trophic downgrading in the soil microbial food web 

      Dahl, Mathilde Borg; Söllinger, Andrea; Sigurðsson, Páll; Janssens, Ivan; Peñuelas, Josep; Sigurdsson, Bjarni D.; Richter, Andreas; Tveit, Alexander; Urich, Tim (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-01)
      Climatic warming has been hypothesized to accelerate organic matter decomposition by soil microorganisms and thereby enhance carbon (C) release to the atmosphere. However, the long-term consequences of soil warming on belowground biota interactions are poorly understood. Here we investigate how geothermal warming by 6 °C for more than 50 years affects soil microbiota. Using metatranscriptomics we ...