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.
2007
Authors
Carl Gunnar FossdalAbstract
In collaboration with the NARC platform at Ås, we have taken the Norway spruce phytochrome and PaChi4 promoters and introduced them into Arabidopsis using GFP and YFP expression vectors in order to study their effect on expression under long and short day treatment. Said in other words we use of GFP and YFP as reporters and Arabidopsis as a host for the Norway spruce promoters in order to study their possible regulation by day-length in this model plant system. In completely separate experiments in collaboration with the NARC platform at Ås, we have introduced the Norway spruce glycohydrolase PaChi4 into Arabidopsis to examine what effect this might have on the response to wounding and to pathogens. The PaChi4 enzyme is produced at very high levels in tissues with high level of host cell death (PCD) following fungal infections and it might be a marker for or directly involved in PCD. We have obtained transgenic plants and the first examination for any day-length dependent expression of the GFP and YFP reporters in the transgenic Arabidopsis lines is currently being pursued while the examination of the PAChi4 enzyme overexpressing lines are yet to be initiated.
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Trine A Sogn Espen Govasmark Susanne Eich-Greatorex Anne Falk Øgaard John A. MacLeodAbstract
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Authors
Wim de Vries G.W.W. Wamelink Gert Jan Reinds H.J.J. Wieggers J.P. Mol-Dijkstra J. Kros Gert-Jan Nabuurs A. Pussinen Svein Solberg Matthias Dobbertin Daniel Laubhann Hubert Sterba M. van OijenAbstract
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Authors
Cecil C. Konijnendijk Anders Busse Nielsen Jasper Schipperijn Yngve Rosenblad Heldur Sander Mikk Sarv Kirsi Mäkinen Liisa Tyrväinen Janis Donis Vegard Gundersen Ulrika Åkerlund Roland GustavssonAbstract
A review of research and research needs in urban forestry was carried out in Denmark, Estonia, Finland, Latvia, Norway and Sweden during 2005. A questionnaire addressing post-2000 and ongoing research was sent to 146 researchers and generated 76 completed questionnaires. Universities were found to lead urban forestry research, while municipalities headed funding organisations in terms of number of projects funded. Planning, ecological and management aspects were the most common research themes, but socially oriented research also played an important role. The research needs questionnaire was sent to 192 key research actors (assignors, users and researchers), resulting in 63 completed needs assessments. The research themes of ‘urban forest management\", ‘social and cultural values\" and ‘urban forest and green planning\" were prioritised for future research. Comparison of ongoing research and research needs showed discrepancies, as ongoing research does not always cover the same themes identified as primary research needs. Priorities for future research as identified by the research community respective those assigning and using research also differed. Economic assessment of benefits, for example, scored much higher as a need among researchers than other respondents. In terms of present weaknesses in the research ‘infrastructure\", research actors emphasised lack of funding, fragmentation of research and insufficient critical mass. The region\"s urban forestry research can be enhanced and made more meaningful by strengthening national and international networking within the research community, across disciplines, as well as between researchers and those commissioning and using research.
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P Benoit J Perceval Marianne Stenrød C Moni Ole Martin Eklo E Barriuso Tore E. Sveistrup Jens KværnerAbstract
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Authors
Anders LunnanAbstract
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