A5045847256- Soil Carbon and Nitrogen Dynamics
- Atmospheric and Environmental Gas Dynamics
- Legume Nitrogen Fixing Symbiosis
- Microbial Community Ecology and Physiology
- Wastewater Treatment and Nitrogen Removal
- Peatlands and Wetlands Ecology
- Pharmaceutical and Antibiotic Environmental Impacts
- Soil and Water Nutrient Dynamics
- Isotope Analysis in Ecology
- Agriculture, Soil, Plant Science
- Environmental DNA in Biodiversity Studies
- Pesticide and Herbicide Environmental Studies
- Atmospheric chemistry and aerosols
- Antibiotics Pharmacokinetics and Efficacy
- Soil and Unsaturated Flow
- Plant nutrient uptake and metabolism
- Agronomic Practices and Intercropping Systems
- Polar Research and Ecology
- Odor and Emission Control Technologies
- Agriculture Sustainability and Environmental Impact
- Plant and fungal interactions
- Ruminant Nutrition and Digestive Physiology
- Crop Yield and Soil Fertility
- Agricultural Systems and Practices
- Nematode management and characterization studies
Justus-Liebig-Universität Gießen
2021-2024
Tennessee State University
2023
Helmholtz Zentrum München
2010-2013
Center for Environmental Health
2010
Two soils were amended three times with pig manure. The abundance of sulfonamide resistance genes was determined by quantitative PCR 2 months after each application. In both treated sulfadiazine-containing manure, the numbers copies sul1 and sul2 significantly increased compared to treatments antibiotic-free manure or a control accumulated repeated applications.
In many areas of China, tidal wetlands have been converted into agricultural land for rice cultivation. However, the consequences use changes soil microbial communities are poorly understood. Therefore, we investigated bacterial and archaeal involved in inorganic nitrogen turnover (nitrogen fixation, nitrification, denitrification) based on abundances relative species richness corresponding functional genes along a chronosequence ranging between 50 2,000 years paddy management compared to...
Abstract The special issue summarises and highlights key findings of the research unit DASIM funded by German Research Foundation (DFG) on process denitrification. Progress was made in several areas including development new advanced methods to quantify N 2 fluxes such as a 15 gas flux method, enhanced Raman spectroscopy incubation system study plant-soil interactions He-O atmosphere. Understanding denitrification disturbed structured soil gained combining X-ray CT scanning microbial ecology...
Phosphorus is an essential element for all organisms. A sub-optimal supply of agricultural soils may influence yields, soil quality and health, carbon sequestration nutrient turnover processes. Changes in P levels can microbial communities, altering key pathways the nitrogen (N) (C) cycles affecting greenhouse gas emissions. In this laboratory incubation experiment, we examine effects three long-term fertilization Irish grassland on N C transformation processes, associated fluxes plant...
The antibiotic sulfadiazine (SDZ) can enter the environment by application of manure from antibiotic-treated animals to arable soil. Because antibiotics are explicitly designed target microorganisms, they likely affect microbes in soil ecosystem, compromising important functions and disturbing processes nutrient cycles. In a greenhouse experiment, we investigated impact sulfadiazine-contaminated pig on functional microbial communities involved key nitrogen cycle root-rhizosphere complexes...
In a field experiment, the impact of repeated application antibiotic sulfadiazine (SDZ)-contaminated pig manure was assessed on functional microbial communities involved in ammonia and nitrite oxidation root-rhizosphere complexes (RRCs) diverse plants composing pasture. We surveyed abundance ammonia-oxidizing archaea (AOA) bacteria (AOB) as well Nitrobacter- Nitrospira-like nitrite-oxidizing (NOB) by quantitative PCR, diversity amoA AOA Nitrobacter-like nxrA amplicons using...
Abstract Biogeochemical models simulate soil nitrogen (N) turnover and are often used to assess N losses through denitrification. Though a complete budget, only subset of pools/fluxes (i.e., 2 O, , NH 3 NO x ) published since the full budget cannot be validated with measured data. Field studies rarely include balances, especially fluxes, which difficult quantify. Limiting publication modeling results based on available field data represents missed opportunity improve understanding modeled...
Abstract Most veterinary drugs enter the environment via manure application. However, ecotoxic effects of antibiotics are varying as a function their physicochemical characteristics and for most it is still unclear how these substances interact with soil biota. It was aim present study to investigate containing different concentrations antibiotic amoxicillin (AMX) on microbial‐community in two soils over an incubation time 18 d. Therefore, respiration, potential nitrification, products N...
Biogeochemical models simulate soil nitrogen (N) turnover and are often used to assess N losses through denitrification. Though a complete budget, only specific pools/fluxes (i.e. N2O, NO3-, NH3, NOx) usually published, because the full budget cannot be validated with measured data. Field studies rarely include balances, especially N2 fluxes, which difficult quantify. Limiting publication of modeling results based on available field data is missed opportunity improve understanding modeled...
Abstract Isotopic tracer methods using 15 N or other isotopes provide insights into the sources and underlying transformations leading to 2 O emissions from agricultural soils. However, homogeneous labelling of naturally structured soil in field is challenging since macropore flow must be avoided while application performed a limited timeframe. Therefore, we tested infiltration pattern several consequently developed drip (DA) for larger scales individual dropper bottles. We proof concept...