A5011661930- Arsenic contamination and mitigation
- Mine drainage and remediation techniques
- Microbial Community Ecology and Physiology
- Methane Hydrates and Related Phenomena
- Legume Nitrogen Fixing Symbiosis
- Agricultural economics and policies
- Sustainable Development and Environmental Management
- Heavy metals in environment
- Plant-Microbe Interactions and Immunity
- Geochemistry and Elemental Analysis
- Hydrocarbon exploration and reservoir analysis
- CO2 Sequestration and Geologic Interactions
- Atmospheric and Environmental Gas Dynamics
- Chromium effects and bioremediation
- Integrated Water Resources Management
- Microbial Fuel Cells and Bioremediation
- Heavy Metal Exposure and Toxicity
- Groundwater and Isotope Geochemistry
- Renewable energy and sustainable power systems
- Heavy Metals in Plants
- Soil Carbon and Nitrogen Dynamics
- Porphyrin Metabolism and Disorders
- Plant Stress Responses and Tolerance
- Coal and Its By-products
- Plant Growth Enhancement Techniques
University of Tübingen
2019-2024
Radboud University Nijmegen
2020-2024
Radboud Institute for Molecular Life Sciences
2022-2024
Radboud University Medical Center
2022-2024
Institute of Soil Science and Plant Cultivation
2017-2019
Wroclaw University of Environmental and Life Sciences
2019
McGill University
2016-2017
Natural organic matter (NOM) can contribute to arsenic (As) mobilization as an electron donor for microbially-mediated reductive dissolution of As-bearing Fe(III) (oxyhydr)oxides. However, investigate this process, instead using NOM, most laboratory studies used simple fatty acids or sugars, often at relatively high concentrations. To the role relevant C sources, we therefore extracted in situ NOM from upper aquitard (clayey silt) and lower sandy aquifer sediments Van Phuc (Hanoi area,...
Geogenic arsenic (As) contamination of groundwater poses a major threat to global health, particularly in Asia. To mitigate this exposure, is increasingly extracted from low-As Pleistocene aquifers. This, however, disturbs flow and potentially draws high-As into Here we report detailed characterisation the Van Phuc aquifer Red River Delta region, Vietnam, where Holocene being drawn aquifer. This study includes data eight years (2010-2017) observations develop an understanding spatial...
Most rhizobial inoculants that stimulate legume yield are applied with carriers enhance root contact. The physicochemical properties of biochar suitable for microbial growth, and it could be an alternative to peat, which comes from decreasing reserves but is the commonest solid inoculant carrier. aim current research was evaluate biochars as bradyrhizobia in coatings seeds. Biochars peat were inoculated Bradyrhizobium japonicum strain 532C storage time assessed. A seed coating system...
The fate of arsenic (As) in groundwater is determined by multiple interrelated microbial and abiotic processes that contribute to As (im)mobilization. Most studies date have investigated individual related (im)mobilization rather than the complex networks present situ. In this study, we used RNA-based community analysis combination with hydrogeochemical measurements elucidate behavior along a 2 km transect near Hanoi, Vietnam. stretches from riverbank across strongly reducing As-contaminated...
Abstract Arsenic groundwater contamination threatens the health of millions people worldwide, particularly in South and Southeast Asia. In most cases, release arsenic from sediment was caused by microbial reductive dissolution arsenic-bearing iron(III) minerals with organic carbon being used as electron donor. Although many arsenic-contaminated aquifers high concentrations methane were observed, its role mobilization is unknown. Here, using microcosms experiments hydrogeochemical community...
Geogenic arsenic (As) contamination of groundwater is a health threat to millions people worldwide, particularly in alluvial regions South and Southeast Asia. Mitigation measures are often hindered by high heterogeneities As concentrations, the cause(s) which elusive. Here we used comprehensive suite stable isotope analyses hydrogeochemical parameters shed light on mechanisms typical high-As Holocene aquifer near Hanoi where advected low-As Pleistocene aquifer. Carbon signatures (δ13C-CH4,...
Abstract Agricultural drainage ditches are subjected to high anthropogenic nitrogen input, leading eutrophication and greenhouse gas emissions. Nitrate-dependent anaerobic methane oxidation (N-DAMO) could be a promising remediation strategy remove (CH4) nitrate (NO3−) simultaneously. Therefore, we aimed evaluate the potential of N-DAMO excess NO3− decrease CH4 release from agricultural ditches. Microcosm experiments were conducted using sediment surface water collected three different sites:...
Methane emissions present a significant environmental challenge in both natural and engineered aquatic environments. Denitrifying anaerobic methane oxidation (N-DAMO) has the potential for application wastewater treatment plants. However, our understanding of N-DAMO process is primarily based on studies conducted samples or enrichment cultures using metagenomic approaches. To gain deeper insights into N-DAMO, we used antimicrobial compounds to study function physiology 'Candidatus...
Although arsenic (As) groundwater contamination in South and Southeast Asia is a threat to human health, mechanisms of its release from sediment are still not fully understood. In many aquifers, Fe(III) minerals often the main hosting phases for As their stability crucial mobility. Recently, new mechanism mobilization into was proposed with methane (CH4) serving as an electron donor microbially mediated reductive dissolution As-bearing minerals. To provide unequivocal evidence occurrence...
For a constantly growing human population, healthy and productive soil is critical for sustainable delivery of agricultural products. The microorganisms play crucial role in structure functioning. They are responsible formation, ecosystem biogeochemistry, cycling nutrients degradation plant residues xenobiotics. Certain treatments, such as fertilizers pesticides applications, crop rotation, or amendment addition, influence the composition, abundance function bacteria fungi ecosystems. Some...
Consumers' awareness and concerns regarding health environmental issues associated with intensive highly industrialised agriculture is the main cause of constantly growing interest in organic farming. Most consumers believe that organically grown vegetables are healthier, more nutritious better quality. In current study, samples commonly used vegetable soil were collected from conventional farms. Using Atomic absorption spectroscopy, plant analysed tested for concentration heavy metals (Cd,...
Abstract A collection of 45 isolates was created based on bacteria isolated from maize, broad bean, wheat, rye and wild plants such as horsetail burdock. The aim the current study to isolate bacteria, then identify assess degree genomic diversity. molecular identification microsymbionts endosphere (root stem) grown in agricultural soils performed using 16S rRNA gene sequencing. To evaluate diversity between strains that occurred multiple host plants, 18 bacterial representing four species...
Fe(III) minerals play a crucial role for arsenic (As) mobility in aquifers as they usually represent the main As-bearing phases. Microbial reductive dissolution of is responsible release As and resulting groundwater contamination many sites worldwide. So far, most studies mainly abiogenic iron have been considered. Yet, biogenic that possess different properties to their counterparts are also present environment. In some environments dominate mineral inventory but so it unclear what this...
Abstract The drinking water quality in Southeast Asia is at risk due to arsenic (As) groundwater contamination. Intensive use of fertilizers may lead nitrate (NO3−) leaching into aquifers, yet very little known about its effect on iron (Fe) and As mobility water. We ran a set microcosm experiments using aquifer sediment from Vietnam supplemented with 15NO3− 13CH4. To assess the nitrate-dependent anaerobic methane oxidation (N-DAMO) we also inoculated two different N-DAMO enrichment cultures....
Aquatic ecosystems are large contributors to global methane (CH4) emissions. Eutrophication significantly enhances CH4-production as it stimulates methanogenesis. Mitigation measures aimed at reducing eutrophication, such the addition of metal salts immobilize phosphate (PO43-), now common practice. However, effects remedies on methanogenic and methanotrophic communities-and therefore CH4-cycling-remain largely unexplored. Here, we demonstrate that Fe(II)Cl2 addition, used PO43- binder,...
Groundwater contamination of geogenic arsenic (As) remains a global health threat, particularly in south-east Asia. The prominent correlation often observed between high As concentrations and methane (CH4) stimulated the analysis gas dynamics an contaminated aquifer, whereby noble reactive gases were analysed. Results show progressive depletion atmospheric (Ar, Kr N2) alongside highly increasing CH4, implying that free phase comprised mainly CH4 is formed within aquifer. In contrast, Helium...
Współczesne rolnictwo charakteryzuje się ogromną produktywnością i efektywnością, jednak często odbywa to kosztem środowiska oraz zdrowia konsumentów. Z uwagi na wzrastającą świadomość ludzie coraz chętniej sięgają po produkty ekologiczne. Jednak produkcja ekologiczna nie tylko zdrowsza bezpieczniejsza żywność. Rolnictwo ekologiczne także forma ochrony odpowiedzialne zarządzania zasobami naturalnymi. Woda, gleba, różnorodność biologiczna krajobraz niektóre elementy środowiska, które...
Modern agriculture has reached tremendous productivity and effectiveness; however, it very often happens that intensive production causes serious environmental concerns compromises the quality of final product. Due to increasing consumer awareness, people more frequently choose organic products as a healthier safer option. Nevertheless, farming is not only about superior food, also method protection sustainable resource management. Water, soil, biological diversity landscape are just some...