A5070323064- Pharmaceutical and Antibiotic Environmental Impacts
- Graphene and Nanomaterials Applications
- Nanoparticles: synthesis and applications
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Microbial Community Ecology and Physiology
- Wastewater Treatment and Nitrogen Removal
- Microplastics and Plastic Pollution
- Anaerobic Digestion and Biogas Production
- Wastewater Treatment and Reuse
- Conferences and Exhibitions Management
- Advanced Nanomaterials in Catalysis
- Climate change and permafrost
- Climate Change Communication and Perception
- Composting and Vermicomposting Techniques
- Protist diversity and phylogeny
- Gut microbiota and health
- Membrane Separation Technologies
- Toxic Organic Pollutants Impact
- Hydrocarbon exploration and reservoir analysis
- Diatoms and Algae Research
- Electrochemical sensors and biosensors
- Antibiotic Resistance in Bacteria
- Urban Stormwater Management Solutions
- Marine and Offshore Engineering Studies
Centre de Recherche sur la Biodiversité et l'Environnement
2024-2025
Centre National de la Recherche Scientifique
2017-2024
Institut National Polytechnique de Toulouse
2013-2024
Université Toulouse III - Paul Sabatier
2017-2024
Laboratoire Écologie Fonctionnelle et Environnement
2016-2024
Université de Toulouse
2017-2024
Institut de Recherche pour le Développement
2024
Laboratoire de Biotechnologie de l'Environnement
2009-2022
École Nationale Supérieure Agronomique de Toulouse
2013-2020
Ecolab (United Kingdom)
2019
Arctic lakes emit methane (CH4) to the atmosphere. The magnitude of this flux could increase with permafrost thaw but might also be mitigated by microbial CH4 oxidation. Methane oxidation in oxic water has been extensively studied, while contribution anaerobic (AOM) mitigation is not fully understood. We have investigated four Northern Siberian stratified an area discontinuous nearby Igarka, Russia. Analyses concentrations column demonstrated that 60 100% upward diffusing was oxidized anoxic...
Antibiotic resistance (AR) is one of the major health threats our time. The presence antibiotics in environment and their continuous release from sewage treatment plants, chemical manufacturing plants animal husbandry, agriculture aquaculture, result constant selection pressure on microbial organisms. This leads to emergence, mobilization, horizontal gene transfer a antibiotic genes, resistant bacteria mobile genetic elements. Under these circumstances, aquatic wildlife impacted all...
The sorption of hydrophobic micropollutants in sludge is one the major mechanisms which drive their fate within wastewater treatment systems. objective this study was to investigate influence both and micropollutant characteristics on equilibria particles dissolved colloidal matter (DCM). For purpose, equilibrium constants were measured for 13 polycyclic aromatic hydrocarbons, 5 polychlorobiphenyls nonylphenol, five different types encountered systems: a primary sludge, secondary same after...
ABSTRACT Methane emissions represent a major environmental concern associated with manure management in the livestock industry. A more thorough understanding of how microbial communities function storage tanks is prerequisite for mitigating methane emissions. Identifying microorganisms that are metabolically active an important first step. Methanogenic archaea contributors to methanogenesis stored swine manure, and we investigated methanogenic populations by DNA stable isotope probing...
With the advancement in nanotechnology, particularly use of TiO2 nanoparticles (NPs), there is a need to study their release into environment and assess related risk an environmentally relevant contamination scenario. In present study, transfer toxicity NPs microcosms mimicking terrestrial aquatic ecosystems were evaluated. The contaminated soil was prepared by spiking natural soils, with these then used as basis for all exposure systems including preparation leachates amphibian exposure....
Freshwater ecosystems are responsible for an important part of the methane (CH4) emissions which likely to change with global warming. This study aims evaluate temperature-induced (from 5 20 °C) changes on microbial community structure and methanogenic pathways in five sub-Antarctic lake sediments from Magallanes strait Cape Horn, Chile. We combined situ CH4 flux measurements, production rates (MPRs), gene abundance quantification analysis (metabarcoding 16S rRNA gene). Under unamended...
Greenhouse gas emissions represent a major problem associated with manure management in the livestock industry. A prerequisite to mitigate methane occurring during storage is clearer understanding of how microbial consortia involved methanogenesis function. Here, we have examined stored outdoor tanks from two different farms, at locations and depths. Physico-chemical microbiological characterization these samples indicated differences between each tank, as well within tank dependent on depth...
Abstract. A critical aspect of predicting soil organic carbon (SOC) concentrations is the lack available information; where information on characteristics available, it usually focused regions high agricultural interest. To date, in Chile, a large proportion SOC data have been collected areas intensive or forestry use; however, vast beyond these forms land use few no available. Here we present new database for country, which result an unprecedented national effort under framework Global Soil...
Abstract Phototrophic microbes, also known as micro‐algae, display a high abundance in many terrestrial surface soils. They contribute to atmospheric carbon dioxide fluxes through their photosynthesis, and thus regulate climate similar plants. However, microbial photosynthesis remains overlooked most ecosystems. Here, we hypothesise that phototrophic microbes significantly peatland C uptake, unless environmental conditions limit development photosynthetic activity. To test our hypothesis,...
It is commonly assumed that methane (CH4) released by lakes into the atmosphere mainly produced in anoxic sediment and transported diffusion or ebullition through water column to surface of lake. In contrast prevailing idea, it has been gradually established epilimnetic CH4 does not originate exclusively from sediments but also locally laterally littoral zone. Therefore, cycling epilimnion hypolimnion might be as closely linked previously thought. We utilized a high-resolution method used...
Abstract High latitudes are experiencing intense ecosystem changes with climate warming. The underlying methane (CH 4 ) cycling dynamics remain unresolved, despite its crucial climatic feedback. Atmospheric CH emissions heterogeneous, resulting from local geochemical drivers, global factors, and microbial production/consumption balance. Holistic studies mandatory to capture complexity. Here, we report a large set of integrated biogeochemical data 387 samples, using concerted sampling...
A growing portion of scientists realises the need to not only alert about climate change, but also change their professional practices. range tools have emerged promote more sustainable activities, yet many struggle go beyond simple awareness-raising create concrete transition actions. Here we propose a game-based support system MaTerre180’ , which has been designed build scenarios greenhouse gas (GHG) emission reductions in academic community. After providing common scientific background...
Sewer biofilms are likely to constitute hotspots for selecting and accumulating antibiotic-resistant bacteria (ARB) antibiotic resistance genes (ARGs). This study aimed optimize culture conditions obtain in vitro biofilms, mimicking the biofilm collected sewers, impact of fluoroquinolones (FQs) on sewer microbiota. Biofilms were grown coupons CDC Biofilm Reactors®, continuously fed with nutrients inoculum (1/100 diluted wastewater). Different tested: (i) initial inoculum: wastewater or...
Despite the growing interest for boron nitride nanotubes (BNNT) due to their unique properties, data on evaluation of environmental risk potential this emerging engineered nanomaterial are currently lacking. Therefore, ecotoxicity a commercial form BNNT (containing tubes, hexagonal-boron nitride, and boron) was assessed in vivo toward larvae amphibian Xenopus laevis. Following exposure, multiple endpoints were measured tadpoles as well bacterial communities associated host gut. Exposure led...