A5024098136- Microplastics and Plastic Pollution
- Methane Hydrates and Related Phenomena
- biodegradable polymer synthesis and properties
- Microbial Community Ecology and Physiology
- Recycling and Waste Management Techniques
- Anaerobic Digestion and Biogas Production
- Microbial metabolism and enzyme function
- Atmospheric and Environmental Gas Dynamics
- Marine Biology and Environmental Chemistry
- Conferences and Exhibitions Management
- Cancer-related Molecular Pathways
- Gut microbiota and health
- Chemical Reactions and Isotopes
- bioluminescence and chemiluminescence research
- Coal Properties and Utilization
- Coastal wetland ecosystem dynamics
- Diversity and Career in Medicine
- Plant responses to water stress
- Hemoglobin structure and function
- Microtubule and mitosis dynamics
- Peatlands and Wetlands Ecology
- Wastewater Treatment and Nitrogen Removal
- Cancer, Hypoxia, and Metabolism
- DNA Repair Mechanisms
- Pharmaceutical and Antibiotic Environmental Impacts
Royal Netherlands Institute for Sea Research
2018-2024
Radboud University Nijmegen
2016-2022
Utrecht University
2022
Advancements in chemical, medical, cosmetic, and plastic producing industries have improved agricultural yields, health human life general. As a negative consequence, plethora of chemicals are intentionally unintentionally released to terrestrial aquatic environments with sometimes devastating effects for entire ecosystems. One mitigation strategy counteract this pollution is bioremediation. Bioremediation an umbrella term biologically mediated processes during which undesired compound...
Ocean plastic pollution is a problem of increasing magnitude; yet, the amount at sea surface much lower than expected. Solar ultraviolet (UV) radiation can induce photodegradation, but its importance in determining longevity floating remains unconstrained. Here, we measured photodegradation rates different types slightly larger microplastics (virgin polymers and debris) under simulated marine conditions. UV irradiation caused all to leach dissolved organic carbon, lesser degree carbon...
Paddy fields are a significant source of methane and contribute up to 20% total emissions from wetland ecosystems. These inundated, anoxic soils featuring abundant nitrogen compounds an ideal niche for nitrate-dependent anaerobic methanotrophs. After 2 years enrichment with continuous supply nitrate as the sole electron donor acceptor, stable dominated by 'Candidatus Methanoperedens nitroreducens' archaea Methylomirabilis oxyfera' NC10 phylum bacteria was achieved. In this community,...
In order to mitigate methane emissions from paddy fields, it is important understand the sources and sinks. Most fields are heavily fertilized with nitrite nitrate, which can be used as electron acceptors by anaerobic methanotrophs. Here we show that slurry incubations of Italian field soil nitrate 13C-labelled have potential for nitrate-dependent oxidation (79.9 nmol g-1dw d-1). Community analysis based on 16S rRNA amplicon sequencing qPCR water-logged rhizosphere showed methane-associated...
Plastic particles in the ocean are typically covered with microbial biofilms, but it remains unclear whether distinct communities colonize different polymer types. In this study, we analyzed forming biofilms on floating microplastics a bay of island Elba Mediterranean Sea. Raman spectroscopy revealed that plastic mainly comprised polyethylene (PE), polypropylene (PP), and polystyrene (PS) which were brittle featured cracks. Fluorescence situ hybridization imaging by high-resolution...
Ocean plastic pollution is a severe environmental problem but most of the that has been released to ocean since 1950s unaccounted for. Although fungal degradation marine plastics suggested as potential sink mechanism, unambiguous proof by fungi, or other microbes, scarce. Here we applied stable isotope tracing assays with 13C-labeled polyethylene measure biodegradation rates and trace incorporation plastic-derived carbon into individual cells yeast Rhodotorula mucilaginosa, which isolated...
The nitrogen and methane cycles are important biogeochemical processes. Recently, 'Candidatus Methanoperedens nitroreducens,' archaea that catalyze nitrate-dependent anaerobic oxidation of (AOM), were enriched, their genomes analyzed. Diagnostic molecular tools for the sensitive detection M. nitroreducens' not yet available. Here, we report design two novel mcrA primer combinations specifically target alpha sub-unit methyl-coenzyme M reductase (mcrA) gene nitroreducens'. first pair produces...
Paddy fields are important ecosystems, as rice is the primary food source for about half of world's population. impacted by nitrogen fertilization and a major anthropogenic methane. Microbial diversity methane metabolism were investigated in upper 60cm paddy soil qPCR, 16S rRNA gene amplicon sequencing anoxic 13C-CH4 turnover with suite electron acceptors. The bacterial community consisted mainly Acidobacteria, Chloroflexi, Proteobacteria, Planctomycetes Actinobacteria. Among archaea,...
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The long-term fate of plastics in the ocean and their interactions with marine microorganisms remain poorly understood. In particular, role sinking plastic particles as a transport vector for surface microbes towards deep sea has not been investigated. Here, we present first data on composition microbial communities floating suspended recovered from to bathypelagic water column (0-2000 m depth) North Pacific Subtropical Gyre. Microbial community differed that afloat at surface. However, both...
Abstract Traditional rice cultivation consumes up to 2500 L of water per kg yield and new strategies such as the ‘Alternate Wetting Drying’ (AWD) might be promising water-saving alternatives. However, they have large impacts on soil microbiology. In this study, we compared bacterial archaeal communities in experimental field plots, cultivated under continuously flooding (CF) AWD management, by high-throughput sequencing 16S rRNA gene. We analysed alpha beta diversity bulk plant roots, plots...
Globally, large-scale land drainage has severely deteriorated the functioning and services of peatlands, making restoration plans utmost importance. Rewetting is essential for drained but level success including greenhouse gas (GHG) mitigation largely depends on soil microbiome interactions under prevailing biogeochemical conditions. Here, we investigated effects inundation iron (Fe) -rich peat topsoils nutrient release, surface water quality, GHG production consumption, composition activity...
Large quantities of plastic enter the oceans each year providing extensive attachment surfaces for marine microbes yet understanding their interactions and colonization debris remains limited. We investigated microbial various types (polyethylene, polystyrene, polyethylene-terephthalate, nylon) in ex-situ incubation experiments. Plastic films, both UV-pretreated untreated, were exposed to seawater from a coastal an offshore location North Sea. 16S rRNA amplicon sequencing was employed assess...
Plastic pollution in coastal areas, particularly subtropical and tropical regions, remains a pervasive environmental issue. Marine plastic debris provides an artificial surface that rapidly accumulates dynamic microbial biofilm upon entering the marine ecosystem. Especially early stages of colonization are critical shaping community. This study investigates colonization, less than week, on five different polymers Caribbean waters through 16S rRNA gene amplicon sequencing. We discovered...
<p>Ocean plastic debris poses a large threat to the marine environment. Millions of tons end up in ocean each year and Mediterranean Sea is one most polluted sea. Ocean particles are typically covered with microbial biofilms, but it remains unclear if different polymer types colonized by communities. Knowledge this aspect strengthens our understanding microbes purely use as attachment surface or they may even contribute degradation plastic. To gain better composition structure...