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.
2015
Authors
Lise GrøvaAbstract
No abstract has been registered
Authors
Lise GrøvaAbstract
No abstract has been registered
Authors
Dag Fjeld Bruce TalbotAbstract
No abstract has been registered
Abstract
Ten saplings of European ash (Fraxinus excelsior L.) naturally infected by the invasive ash dieback pathogen Hymenoscyphus fraxineus were collected in Ukraine and Norway and examined for bark necrosis and extension of discoloration in sapwood and pith in a stem region. Tissue-specific colonization profiles were determined by spatial analyses of symptomatic and visually healthy stem tissues using a H. fraxineus-specific qPCR assay and light microscopy. Our data suggest that hyphal growth in the starch-rich perimedullary pith is of particular importance for both axial and radial spread of H. fraxineus, but that most of its biomass accumulates in sapwood parenchyma. The study confirms the results from earlier work and presents new information that refines the current stem invasion model.
Abstract
Predicting how human induced vegetation changes affect ecosystems and their biological communities is one of the most urgent tasks in ecology. In Norwegian lowlands one of the main threats to biodiversity is abandonment of low intensive land-use areas. Effects of changed land-use on vegetation are generally made by assessing the effect on the number of species as indicators of biodiversity. However, community structure changes and ecosystem processes are not necessarily well described by this biodiversity indicator only. Functional trait responses might better predict structures and processes than species richness. Therefore, studies of functional traits and biodiversity indexes of these might provide deeper insight. In addition, to predict reliable future vegetation changes, multifactorial determinants have to be considered as vegetation is not driven by one determinant only.
Authors
Anette Tjomsland SpillingAbstract
Researchers will genetically modify tobacco plants to produce enzymes that can break down biomass from forest raw materials. This may lead to a more effective, economic and sustainable production of biofuels.
Authors
Susan E. Chen Anke Möser Rodolfo M. Jr. NaygaAbstract
No abstract has been registered
Authors
John Marshall BrydenAbstract
No abstract has been registered
Authors
John Marshall BrydenAbstract
No abstract has been registered
Abstract
No abstract has been registered