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.
2009
Sammendrag
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Forfattere
Erlend NybakkSammendrag
Increased urbanization in many societies is having a negative impact on vitality of rural areas. To maintain the vitality of these areas governments have employed a variety of policies, some of which are designed to increase new and alternative income from forest land. The multi-dimensional value of natural resources creates possibilities for local economic development, and landowners are a key factor in releasing this potential. Innovation research within the use of forest land has experienced rejuvenation in recent years as reduced income from agricultural products, saw logs and pulp logs has become a critical policy issue at national and regional levels. Four innovation-oriented studies have recently been completed at the University of Life Science and the Forest and Landscape Institute in Norway. These studies examined entrepreneurial attitudes effect on probability for start-ups entrepreneurial attitudes impact on innovation and performance social networks, learning orientation and entrepreneurial climate impact on innovativeness. This presentation will highlight the most important findings from these studies and outline implications of the findings that may be used by policy makers, landowners and research.
Forfattere
Igor A. Yakovlev Harald Kvaalen Carl Gunnar Fossdal Øystein JohnsenSammendrag
MicroRNAs (miRNAs) are endogenous small RNAs that can have large-scale regulatory effect and could participate in epigenetic regulation of gene expression in plants. We show for the first time that temperature during zygotic embryogenesis and seed maturation in Norway spruce regulates an “epigenetic memory” in the progeny, regenerated through somatic embryogenesis. The warmer the in vitro temperature applied, the later the regenerated plants formed terminal buds in the common environment the second growth season. The differences were very large, and similar in size to a provenance separation of 4 – 6 degrees of latitude (Kvaalen and Johnsen, 2008). To study a molecular mechanisms of a memory from embryo development we have prepared two concatemerized small RNA libraries representing small RNAs predominantly expressed in plants growing from seeds obtained after embryogenesis in cold environment (CEL) and warm environment (WEL) after short day (SD) treatment (going to bud set). In total we obtained 201 different small RNAs, with dominated length of 21-nt, 123 from WEL and 93 from CEL. Using multiple methods, including BLAST, sequence alignment and sequence folding we found 27 novel candidate miRNAs and only 3 earlier described. Additionally 103 small RNAs have exact matches in spruce EST database, which could be their putative targets and 67 small RNAs have no matches. We used quantitative RT–PCR to study the expression patterns of 31 chosen candidate miRNAs and monitor the occurrence stage-dependent miRNA-mediated cleavage for 4 regions of putative mRNA targets. All miRNA show difference in transcript levels after SD treatment and 12 miRNAs show constitutively differential expression in progeny from CE and WE. Kvaalen H, Johnsen O (2008) Timing of bud set in Picea abies is regulated by a memory of temperature during zygotic and somatic embryogenesis. New Phytologist 177: 49-59
Forfattere
Erlend NybakkSammendrag
Historically, the forest sector has been an important industry for the Norwegian economy, particularly for rural areas. Even though growth patterns among rural communities have differed, all have been greatly affected by urban centralization, global markets, and economic decline in the agricultural sector. The multi-dimensional value of natural resources creates possibilities for local economic development, and landowners are a key factor in releasing this potential. Innovation research within the use of forest land has experienced rejuvenation in recent years as reduced income from agricultural products, saw logs and pulp logs has become a critical policy issue at national and regional levels. Four innovation-oriented studies have recently been completed at the University of Life Science and the Forest and Landscape Institute in Norway. These studies examined Entrepreneurial attitudes effect on probability for start-upsEntrepreneurial attitudes impact on innovation and performancesocial networks, learning orientation and entrepreneurial climate impact on innovativeness. This presentation will highlight the most important findings from these studies and outline implications of the findings that may be used by policy makers, landowners and research.
Forfattere
Kjell VadlaSammendrag
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Forfattere
Klaus MittenzweiSammendrag
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Forfattere
Helge BerglannSammendrag
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Sammendrag
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Sammendrag
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Sammendrag
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