A5091705450- Microbial Community Ecology and Physiology
- Soil Carbon and Nitrogen Dynamics
- Bacteriophages and microbial interactions
- Microbial Metabolic Engineering and Bioproduction
- Plant Virus Research Studies
- Plant nutrient uptake and metabolism
- Legume Nitrogen Fixing Symbiosis
- Environmental Impact and Sustainability
- Gut microbiota and health
- Genomics and Phylogenetic Studies
- Plant responses to water stress
- biodegradable polymer synthesis and properties
- Polysaccharides and Plant Cell Walls
- Biofuel production and bioconversion
- Plant and Fungal Interactions Research
- Wastewater Treatment and Nitrogen Removal
- Evolution and Genetic Dynamics
- Image Processing and 3D Reconstruction
- Insect symbiosis and bacterial influences
- Microplastics and Plastic Pollution
- Soil and Unsaturated Flow
- Metabolism, Diabetes, and Cancer
- Diet and metabolism studies
- Microbial Fuel Cells and Bioremediation
- Plant Micronutrient Interactions and Effects
University of Tübingen
2025
Netherlands Institute of Ecology
2019-2024
University of Göttingen
2017-2022
University of Cape Town
2009
Abstract The concept of biomass growth is central to microbial carbon (C) cycling and ecosystem nutrient turnover. Microbial usually assumed grow by cellular replication, despite microorganisms’ capacity increase synthesizing storage compounds. Resource investment in allows microbes decouple their metabolic activity from immediate resource supply, supporting more diverse responses environmental changes. Here we show that C the form triacylglycerides (TAGs) polyhydroxybutyrate (PHB)...
Mucilage, a gelatinous substance comprising mostly polysaccharides, is exuded by maize nodal and underground root tips. Although mucilage provides several benefits for rhizosphere functions, studies on the variation in amounts its polysaccharide composition between genotypes are still lacking. In this study, eight ( Zea mays L.) from different globally distributed agroecological zones were grown under identical abiotic conditions randomized field experiment. Mucilage exudation amount,...
Mucilage is a gelatinous high-molecular-weight substance produced by almost all plants, serving numerous functions for plant and soil. To date, research has mainly focused on hydraulic physical of mucilage in the rhizosphere. Studies relevance as microbial habitat are scarce. Extracellular polymeric substances (EPS) similarly microorganisms. EPS support establishment assemblages soils, through providing moist environment, protective barrier, carbon nutrient sources. We propose that shares...
Viruses are the most abundant biological entities in world, but their ecological functions soil virtually unknown. We hypothesized that greater abundance of T4-like phages will increase bacterial death and thereby suppress organic carbon (SOC) mineralization. A range phage abundances were established sterilized by reinoculation with 10–3 10–6 dilutions suspensions unsterilized soil. The total viable 16S rRNA gene (a universal marker for bacteria) was measured qPCR to determine abundance,...
Viruses are considered to regulate bacterial communities and terrestrial nutrient cycling, yet their effects on metabolism the mechanisms of carbon (C) dynamics during dissolved organic matter (DOM) mineralization remain unknown. Here, we added active inactive bacteriophages (phages) soil DOM with original incubated them at 18 or 23 °C for 35 days. Phages initially (1–4 days) reduced CO2 efflux rate by 13-21% 3–30% but significantly (p < 0.05) increased 4–29% 9–41% after 6 days, raising...
Movement of organisms plays a crucial role in microbial ecology, yet little is known about how, when and at what speeds soil microorganisms move. Literature offers conflicting lines evidence, even regarding whether single-celled can move all under typical conditions. We review the literature on movement context physicochemical complexity, to establish its likelihood prerequisite Our focus spatial temporal scales relevant for microbiota (&#181;m cm, seconds days), with particular...
Agricultural soils in intensive farming sustain high crop production yields but endanger other regulating ecosystem services. Strengthening the simultaneous delivery of multiple soil functions is therefore essential to achieve while lowering environmental impact. We investigated how this so-called multifunctionality related management intensity conventional and organic arable farming, specific practices regarding e.g. rotation, fertilization or tillage. furthermore explored whether carbon...
Microbial activity drives soil carbon mineralization, while microbial necromass along with other residues contributes to the stable organic pool. Still, precise quantification and characterization of remains methodologically challenging in complex systems, requiring controlled experiments. We have recently presented conceptual framework death pathways soil, where we hypothesized that different agents would lead varying chemical properties necromass, consequences for fate soil.In studies...
Many bacteria synthesize carbon (C) and energy storage compounds, including water-insoluble polyester lipids composed mainly or entirely of poly(3-hydroxybutyrate) (PHB). Despite the potential significance C for microbial life cycling, few measurements PHB in soil have been reported.A new protocol was implemented, based on an earlier sediment extraction derivatization procedure, with quantification by gas chromatography/mass spectrometry (GC/MS) 13 C-isotopic analysis GC/combustion/isotope...