A5030128637- Soil Carbon and Nitrogen Dynamics
- Mycorrhizal Fungi and Plant Interactions
- Forest Ecology and Biodiversity Studies
- Peatlands and Wetlands Ecology
- Geology and Paleoclimatology Research
- Plant Water Relations and Carbon Dynamics
- Ecology and Vegetation Dynamics Studies
- Botany and Plant Ecology Studies
- Soil and Water Nutrient Dynamics
- Lichen and fungal ecology
- Railway Engineering and Dynamics
- Isotope Analysis in Ecology
- Coal and Its By-products
- Toxic Organic Pollutants Impact
- Geotechnical Engineering and Underground Structures
- Forest ecology and management
- Legume Nitrogen Fixing Symbiosis
- Plant responses to elevated CO2
- Civil and Geotechnical Engineering Research
- Structural Engineering and Vibration Analysis
- Climate change and permafrost
- Plant nutrient uptake and metabolism
- Seedling growth and survival studies
- Methane Hydrates and Related Phenomena
- Per- and polyfluoroalkyl substances research
Örebro University
2015-2024
Swedish Transport Administration
2014-2024
Hasselt University
2014
Slovenian Forestry Institute
2014
Institute of Physical-Chemical and Biological Problems in Soil Science
2014
Swedish University of Agricultural Sciences
1995-2011
Umeå University
1989-2001
Boreal forest soils function as a terrestrial net sink in the global carbon cycle. The prevailing dogma has focused on aboveground plant litter principal source of soil organic matter. Using (14)C bomb-carbon modeling, we show that 50 to 70% stored chronosequence boreal forested islands derives from roots and root-associated microorganisms. Fungal biomarkers indicate impaired degradation preservation fungal residues late successional forests. Furthermore, 454 pyrosequencing molecular...
There is growing evidence of the importance extramatrical mycelium (EMM) mycorrhizal fungi in carbon (C) cycling ecosystems. However, our understanding has until recently been mainly based on laboratory experiments, and knowledge such basic parameters as variations mycelial production, standing biomass turnover well regulatory mechanisms behind forest soils limited. Presently, production EMM by ectomycorrhizal (EM) estimated at ~140 different sites to be up several hundreds kg per ha year,...
(1) The effects of river regulation on margin vegetation were evaluated by comparing two parallel seventh order rivers, one natural and the other strongly regulated, in northern Sweden. Prior to regulation, both rivers had similar vegetation. (2) No difference between regulated was found width height (relative summer low-water level) margin, number substrates, mean annual discharge. (3) Frequency distributions species differed that fewer frequent more infrequent species. Species-richness...
Summary1 We examined differences in species richness and frequencies of vascular plants the riverbank vegetation between main channel Vindel River system seven its tributaries ...
ABSTRACT RNA stable isotope probing and high-throughput sequencing were used to characterize the active microbiomes of bacteria fungi colonizing roots rhizosphere soil oilseed rape identify taxa assimilating plant-derived carbon following 13 CO 2 labeling. Root- soil-associated communities both differed from each other, there highly significant differences between their DNA- RNA-based community profiles. Verrucomicrobia , Proteobacteria Planctomycetes Acidobacteria Gemmatimonadetes...
An experiment was performed to find out whether ectomycorrhizal (ECM) fungi alter the nitrogen (N) isotope composition, δ 15 N, of N during transport from soil through fungus into plant. Non‐ mycorrhizal seedlings Pinus sylvestris were compared with inoculated either three ECM fungi, Paxillus involutus , Suillus bovinus and S. variegatus . Plants raised in sand pots supplied a nutrient solution given as NH 4 + or NO 3 − Fractionation against observed both sources; it decreased increasing...
We have studied the chitin and ergosterol contents of ectomycorrhizal roots in three sets experiments to evaluate them as indicators fungal biomass. The first set showed that ageing had a marked effect on concentrations. content 7‐month‐old, brown, shrunken Pinus sylvestris L.– Paxillus involutus (Fr.) Fr. mycorrhizas was found be only 10% white, turgid, 1‐ or 4‐month‐old specimens. This supports hypothesis compound is good indicator living Ageing lesser concentrations since levels...
Boreal forests are characterized by spatially heterogeneous soils with low N availability. The decomposition of coniferous litter in these systems is primarily performed basidiomycete fungi, which often form large mycelia a well-developed capacity to reallocate resources spatially- an advantageous trait environments. In axenic microcosm we tested whether fungi increase their biomass production reallocating between Pinus sylvestris (Scots pine) needles at different stages decomposition. We...