A5074021980- Microbial Community Ecology and Physiology
- Methane Hydrates and Related Phenomena
- Microbial metabolism and enzyme function
- Atmospheric and Environmental Gas Dynamics
- Soil Carbon and Nitrogen Dynamics
- Peatlands and Wetlands Ecology
- Gut microbiota and health
- Wastewater Treatment and Nitrogen Removal
- Anaerobic Digestion and Biogas Production
- Genomics and Phylogenetic Studies
- Plant responses to water stress
- Coastal wetland ecosystem dynamics
- Protist diversity and phylogeny
- Marine and coastal ecosystems
- Isotope Analysis in Ecology
- Biofuel production and bioconversion
- Aquatic Ecosystems and Phytoplankton Dynamics
- Microbial Fuel Cells and Bioremediation
- Environmental DNA in Biodiversity Studies
- Microbial bioremediation and biosurfactants
- Fire effects on ecosystems
- Geochemistry and Elemental Analysis
- Climate change and permafrost
- Plant Stress Responses and Tolerance
- Landfill Environmental Impact Studies
Netherlands Institute of Ecology
2016-2025
Max Planck Institute for Terrestrial Microbiology
1999-2004
Radboud University Nijmegen
1991-1993
Rising atmospheric CO 2 levels are predicted to have major consequences on carbon cycling and the functioning of terrestrial ecosystems. Increased photosynthetic activity is expected, especially for C-3 plants, thereby influencing vegetation dynamics; however, little known about path fixed into soil-borne communities resulting feedbacks ecosystem function. Here, we examine how arbuscular mycorrhizal fungi (AMF) act as a conduit in transfer between plants soil elevated modulates belowground...
Abstract Soils serve as the biological sink of potent greenhouse gas methane with exceptionally low concentrations ∼1.84 p.p.m.v. in atmosphere. The as-yet-uncultivated methane-consuming bacteria have long been proposed to be responsible for this ‘high-affinity’ oxidation (HAMO). Here we show an emerging HAMO activity arising from conventional methanotrophs paddy soil. was quickly induced during low-affinity high-concentration methane. Activity lost gradually over 2 weeks, but could...
The impact of environmental perturbation (e.g., nitrogenous fertilizers) on the dynamics methane fluxes from soils and wetland systems is poorly understood. Results fertilizer studies are often contradictory, even within similar ecosystems. In present study hypothesis whether these contradictory results may be explained by composition methane-consuming microbial community hence methanotrophic diversity affects was investigated. To this end, rice field forest were incubated in microcosms...
Oxygen-releasing plants may provide aerobic niches in anoxic sediments and soils for ammonia-oxidizing bacteria. The oxygen-releasing, aerenchymatous emergent macrophyte Glyceria maxima had a strong positive effect on numbers activities of the nitrifying bacteria its root zone spring early summer. stimulation freshwater sediment, ascribed to oxygen release by roots G. maxima, disappeared late Numbers were positively correlated, relationship with denitrification also was found. To assess...
Microbial communities are at the very basis of life on earth, catalysing biogeochemical reactions driving global nutrient cycles. However, unlike for plants and animals, microbial diversity is not biodiversity conservation agenda. The latter, however, would imply that under any threat by anthropogenic disturbance or climate change. This maybe a misconception caused rudimentary knowledge we have concerning its role in ecosystem functioning. perspective paper indentifies major areas with gaps...
Representatives of the genus Methylocystis are traditionally considered to be obligately methanotrophic bacteria, which incapable growth on multicarbon substrates. Here, we describe a novel member this genus, strain H2s, represents numerically abundant and ecologically important methanotroph population in northern Sphagnum-dominated wetlands. This isolate demonstrates clear preference for methane but is able grow slowly acetate absence methane. Strain H2s possesses both forms monooxygenase...
Summary Peatlands are natural sources of atmospheric methane ( CH 4 ), an important greenhouse gas. It is established that peatland dynamics controlled by both biotic and abiotic conditions, yet the interactive effect these drivers less studied consequently poorly understood. Climate change affects distribution vascular plant functional types PFT s) in peatlands. By removing specific s, we assessed their effects on peat organic matter chemistry, microbial community composition potential...
Karst ecosystems are widely distributed around the world, accounting for 15-20% of global land area. However, knowledge on microbial ecology these systems does not match with their importance. To close this gap, we sampled three niches including weathered rock, sediment, and drip water inside Heshang Cave types soils overlying cave (forest soil, farmland pristine karst soil). All samples were subjected to high-throughput sequencing V4-V5 region 16S rRNA gene analyzed multivariate statistical...
The rhizosphere of oxygen-releasing wetland plants provides a niche for oxygen-consuming microorganisms such as chemolithotrophic ammonia-oxidising bacteria.These bacteria are adapted to oxygen limitation with respect their affinity oxygen, ability survive periods anoxia, and immediate response the appearance oxygen.In this study techniques specific amplification ammonia oxidiser 16S rDNA fragments by PCR, separation mixed PCR samples denaturing gradient gel electrophoresis (DGGE), band...
Temperature change affects methane consumption in soil. However, there is no information on possible temperature control of methanotrophic bacterial populations. Therefore, we studied CH(4) and populations methanotrophs an upland forest soil a rice field incubated at different temperatures between 5 45 degrees C for up to 40 days. Potential was measured 4% CH(4). The temporal progress indicated growth methanotrophs. Both soils showed maximum 25-35 C, but activity >40 C. In also consumed only...