A5089278632- Peatlands and Wetlands Ecology
- Methane Hydrates and Related Phenomena
- Coastal wetland ecosystem dynamics
- Soil Carbon and Nitrogen Dynamics
- Microbial Community Ecology and Physiology
- Geology and Paleoclimatology Research
- Biocrusts and Microbial Ecology
- Insect and Pesticide Research
- Polar Research and Ecology
- Botany and Plant Ecology Studies
- Hydrocarbon exploration and reservoir analysis
- Insect symbiosis and bacterial influences
- Atmospheric and Environmental Gas Dynamics
- Climate change and permafrost
- Insect Utilization and Effects
- Lichen and fungal ecology
- Fire effects on ecosystems
- Research in Social Sciences
- Bee Products Chemical Analysis
- Plant Pathogens and Fungal Diseases
- Innovations in Aquaponics and Hydroponics Systems
- Carbon Dioxide Capture Technologies
- Genomics and Phylogenetic Studies
- Indigenous Studies and Ecology
- Forest Ecology and Biodiversity Studies
University of Jyväskylä
2019-2024
Natural Resources Institute Finland
2015-2020
University of Helsinki
2005-2020
Uppsala University
2014-2020
Summary Mires forming an ecohydrological gradient from nutrient‐rich, groundwater‐fed mesotrophic and oligotrophic fens to a nutrient‐poor ombrotrophic bog were studied by comparing potential methane (CH 4 ) production methanogenic microbial communities. Methane was measured different depths of anoxic peat methanogen communities detected detailed restriction fragment length polymorphism (RFLP) analysis clone libraries, sequencing phylogenetic analysis. Potential CH changed along the with...
Fens, which extend over vast areas in the Northern hemisphere, are sources of greenhouse gas CH4. Climate change scenarios predict a lowering water table (WT) mires. To study effect WT drawdown on CH4 dynamics fen ecosystem, we took advantage gradient near ground extraction plant. Methane fluxes and production oxidation potentials were related to microbial communities responsible for processes four mire locations (wet, semiwet, semidry, dry). Principal component analyses performed...
We addressed how restoration of forestry-drained peatlands affects CH(4)-cycling microbes. Despite similar community compositions, the abundance methanogens and methanotrophs was lower in restored than natural sites correlated with CH(4) emission. Poor establishment may thus explain low emissions on even 10 to 12 years after restoration.
Impacts of warming with open-top chambers on microbial communities in wet conditions and resulting from moderate water-level drawdown (WLD) were studied across 0–50 cm depth northern southern boreal sedge fens. Warming alone decreased biomass especially the fen. Impact PLFA fungal ITS composition was more obvious fen linked to moisture regime sample depth. Fungal-specific increased surface peat drier layers below 10 after warming. OTUs representing Tomentella Lactarius observed Mortierella...
ABSTRACT Northern peatlands in general have high methane (CH 4 ) emissions, but individual show considerable variation as CH sources. Particularly nutrient-poor peatlands, production can be low and exceeded by carbon dioxide (CO 2 from unresolved anaerobic processes. To clarify the role bacterial degraders play this variation, we compared consumers of cellobiose-derived two fens differing nutrient status ratio CO to produced. After [ 13 C]cellobiose amendment, mesotrophic fen produced equal...
Despite their key role in biogeochemical processes, particularly the methane cycle, archaea are widely underrepresented molecular surveys because of lower abundance compared with bacteria and eukaryotes. Here, we use parallel high-resolution small subunit rRNA gene sequencing to explore archaeal diversity 109 Swedish lakes correlate community assembly mechanisms large-scale latitudinal, climatic (nemoral arctic) nutrient (oligotrophic eutrophic) gradients. Sequencing universal primers showed...
Northern peatlands play a major role in the global carbon cycle as sinks for CO2 and sources of CH4. These diverse ecosystems develop through accumulation partially decomposed plant material peat. With increasing depth, peat becomes more recalcitrant due to its longer exposure decomposing processes. Compared with surface peat, deeper sediments remain microbiologically poorly described. We detected active archaeal communities even deep bottom layers (−220/−280 cm) two Finnish fen-type by 16S...
Vegetation and water table are important regulators of methane emission in peatlands. Microform variation encompasses these factors small-scale topographic gradients dry hummocks, intermediate lawns wet hollows. We examined production oxidization among microforms four boreal bogs that showed more vegetation within a bog with microform than between the bogs. Potential was low differed but not consistently microform. Methane oxidation followed position microform, showing higher rates closer to...
Abstract Basic knowledge on dispersal of microbes in pollinator networks is essential for plant, insect, and microbial ecology. Thorough understanding the ecological consequences honeybee farming these complex plant–pollinator–microbe interactions a prerequisite sustainable keeping. Most research have focused temperate agricultural systems. Therefore, information wild plant that seasonal bottleneck pollinators cold climate such as Salix phylicifolia specific importance. We investigated how...
Peatlands, especially fens, are known to emit methane. Reindeer (Rangifer tarandus) use mires mainly as spring and summer pastures. In this work we observed that adding reindeer droppings fen peat increased the potential methane production by 40%. This became apparent when originating from kept in pen or pasture winter were added methanogenic samples. The introduced Methanobacteriaceae (Methanobrevibacter; > 90% of mcrA MiSeq reads) peat, which was originally populated Methanosarcinaceae,...
Primary succession models focus on aboveground vascular plants. However, the prevalence of mosses and lichens, that is cryptogams, suggests they play a role in soil successions. Here, we explore whether effects cryptogams belowground microbes can facilitate progressive shifts sand dune succession. We linked vegetation, bacterial fungal communities, chemical properties six successional stages Arctic inland dunes: bare sand, grass, moss, lichen, ericoid heath mountain birch forest. Compared...
Abstract Northern peatlands consist of a mosaic peatland types that vary spatially and temporally differ in their methane (CH 4 ) production. Microbial community composition environment both potentially control the processes release carbon from anoxic peat either as CH or dioxide (CO 2 ), less potent greenhouse gas than . However, respective roles these controls remain unclear, which prevents incorporating microbes predictions emissions. Here, reciprocal transplant experiment was carried out...
Abstract Peatlands are carbon dioxide (CO 2 ) sinks that, in parallel, release methane (CH 4 ). The peatland (C) balance depends on the interplay of decomposer and CH -cycling microbes, vegetation, environmental conditions. These interactions susceptible to changes that occur along a successional gradient from vascular plant-dominated systems Sphagnum moss-dominated systems. Changes similar this succession predicted climate change. Here, we investigated how microbial plant communities...
Microbes play a role in their host's fundamental ecological, chemical, and physiological processes. Host life-history traits from defence to growth are therefore determined not only by the abiotic environment genotype but also microbiota composition. However, relative importance interactive effects of these factors may vary between organisms. Such connections remain particularly elusive Lepidoptera, which have been argued lack permanent microbiome primarily diet environment. We tested...
<title>Abstract</title> Aquaponics, where recirculating aquaculture systems (RAS) and hydroponics are combined to grow fish plants, is a promising farming technique for sustainable food production. We investigated whether lettuce yield in aquaponics can be enhanced by companion plants the role of plant-derived microbes. Lettuce (spearmint, rucola, wormwood) were grown 30 days hydroponic units RAS effluents three time replicates. The growth increased when with spearmint rucola. Companion also...
In lakes, fungi play pivotal roles in biogeochemical processes, particularly the decomposition of organic matter. However, these organisms have been historically underrepresented and taxonomically unresolved previous research. this study, we employ high-resolution sequencing to delve into fungal diversity within two distinct Scandinavian lake datasets spanning a vast latitudinal gradient, diverse climatic zones ranging from nemoral arctic, wide spectrum nutrient conditions. Utilizing...