A5001281823- Soil Carbon and Nitrogen Dynamics
- Pharmaceutical and Antibiotic Environmental Impacts
- Microbial Community Ecology and Physiology
- Nematode management and characterization studies
- Soil and Water Nutrient Dynamics
- Gut microbiota and health
- Antibiotic Resistance in Bacteria
- Bacteriophages and microbial interactions
- Indoor Air Quality and Microbial Exposure
- Agriculture, Soil, Plant Science
- Environmental DNA in Biodiversity Studies
- Marine and coastal ecosystems
- Legume Nitrogen Fixing Symbiosis
- Methane Hydrates and Related Phenomena
- Mycorrhizal Fungi and Plant Interactions
- Wastewater Treatment and Nitrogen Removal
- Forest Ecology and Biodiversity Studies
- Soil Management and Crop Yield
- Bacterial Identification and Susceptibility Testing
- Plant-Microbe Interactions and Immunity
- Isotope Analysis in Ecology
- Plant Pathogens and Fungal Diseases
- Atmospheric and Environmental Gas Dynamics
- Entomopathogenic Microorganisms in Pest Control
- Biosensors and Analytical Detection
James Hutton Institute
2012-2023
University of Essex
2017
University of Aberdeen
2012-2016
The microbial processes of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) are two important reducing mechanisms in soil, which responsible for the loss (NO3-¬) production potent greenhouse gas, nitrous oxide (N2O). A number factors known control these processes, including O2 concentrations moisture content, N, C, pH size community structure organisms processes. There is an increasing understanding associated with many controls on flux through nitrogen cycle soil...
The overuse of antibiotics in animal husbandry is widespread and believed to significantly contribute the selection antibiotic resistance genes (ARGs) animals. Thus, there a global drive reduce use agricultural sector. However, it has not been established whether reduction livestock production would be effective reducing spread ARGs. A microcosm approach was used determine how addition manure with either reduced levels or typical could affect between soil, earthworms phyllosphere. When...
The phyllosphere is populated by numerous microorganisms. Microbes from the wider environment, i.e., air and soil, are considered key contributors to microbial communities, but their contribution unclear. This study seeks address this knowledge gap controlling movement of microbes along air-phyllosphere-soil continuum. Customized equipment with dual chambers was constructed that permitted airflow enter first chamber while second recruited filtered microbe-free initial chamber. Allium...
Abstract Dissolved organic matter (DOM) concentration and quality were examined from Arctic lakes located in three clusters across south‐west (SW) Greenland, covering the regional climatic gradient: cool, wet coastal zone; dry inland interior; ice‐marginal areas. We hypothesized that differences mean annual precipitation between sites would result a reduced hydrological connectivity their catchments this concentrates degraded DOM. The DOM lake group was characterized by lower aromaticity...
Denitrification is a key process responsible for the majority of soil nitrous oxide (N2O) emissions but influences pH and cultivation on denitrifier community remain poorly understood. We hypothesised that abundance structure total bacterial denitrifiers would be sensitive nirK nirS containing differ in their responses to change cultivation. investigated effect long-term pH-adjusted soils (ranging from 4.2 6.6) under different lengths grass (one, two three years ley grass) general functional...
Ready-to-eat salad harbors microorganisms that may carry various antibiotic resistance genes (ARGs). However, few studies have focused on the prevalence of ARGs salad, thus underestimating risk transferring from to consumers. In this small-scale study, high-throughput quantitative PCR was used explore presence, and abundance associated with serving sourced two restaurant types, fast-food chain independent casual dining. A total 156 unique 9 mobile genetic elements (MGEs) were detected items...
Applying organic fertilizers has been well documented to facilitate the dissemination of antibiotic resistance genes (ARGs) in soil ecosystems. However, role fauna this process seldom addressed, which hampers our ability predict fate and manage spread ARGs. Here, using high-throughput quantitative polymerase chain reaction (HT-qPCR), we examined effect long-term (5-, 8-, 10-year) fertilization treatments (control, inorganic fertilizers, mixed fertilizers) on transfer ARGs between soil,...
The phyllosphere is considered a key site for the transfer of both naturally and anthropogenically selected antimicrobial resistance genes (ARGs) to humans. Consequently, development green building systems may pose an, as yet, unexplored pathway ARGs pathogens from environment outdoor plants. We collected leaves plants climbing up buildings at 1, 2, 4 15 m above ground level associated dust samples adjacent windowsills determine diversity relative abundance microbiota ARGs. Overall, total...
Soils harbor the most diverse naturally evolved antibiotic resistomes on Earth that threaten human health, ecosystem processes, and food security. Yet importance of spatial temporal variability in shaping distribution soil is not well explored. Here, a total 319 topsoil samples were collected at watershed scale during four seasons (spring to winter) high-throughput quantitative PCR (HT-qPCR) was used characterize profiles resistance genes (ARGs). A significant negative correlation observed...
It is currently not recommended to grow soybean ( Glycine max [L.] Merr.) further than 54° North, but climate change and the development of new high latitude-adapted varieties raises possibility that it could be introduced into Scotland as a novel protein crop deriving most its nitrogen (N) requirements through biological N fixation (BNF). This was evaluated via field trials in 2017 2018 near Dundee (56.48°N). As there are no native soybean-nodulating bacteria (SNB) UK soils, requires...
Background: The application of composts to agricultural soil is a well-established practice with evidence showing multiple benefits within the field and beyond through changes in number functions. With health function becoming increasingly important it critical understand impact management on carbon, both root growth zone and, more importantly, below plough pan, an area increasing interest.Methods: A long-term compost trial was established 2004 under continuous spring barley 3 differing...