A5018585023- Microbial Community Ecology and Physiology
- Genomics and Phylogenetic Studies
- Aquaculture disease management and microbiota
- Food Supply Chain Traceability
- Coral and Marine Ecosystems Studies
- Bacteriophages and microbial interactions
- Digital Marketing and Social Media
- Methane Hydrates and Related Phenomena
- Energy and Environmental Systems
- Marine Bivalve and Aquaculture Studies
- Protist diversity and phylogeny
- Gut microbiota and health
- Vibrio bacteria research studies
- Isotope Analysis in Ecology
- Marine Biology and Ecology Research
- Identification and Quantification in Food
- Microplastics and Plastic Pollution
- Marine and coastal ecosystems
- Environmental DNA in Biodiversity Studies
- Wastewater Treatment and Nitrogen Removal
- Respiratory viral infections research
- Pharmaceutical and Antibiotic Environmental Impacts
- Marine and coastal plant biology
- Water Treatment and Disinfection
- Microbial bioremediation and biosurfactants
Université de Montpellier
2015-2024
Marine Biodiversity Exploitation and Conservation
2015-2024
Institut de Recherche pour le Développement
2018-2024
Centre National de la Recherche Scientifique
2013-2024
Ifremer
2005-2024
Centre d'Estudis Avançats de Blanes
2008-2014
Université de Pau et des Pays de l'Adour
2013
Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux
2013
Consejo Superior de Investigaciones Científicas
2008-2011
La Rochelle Université
2005-2008
The surface of marine animals is covered by abundant and diversified microbial communities, which have major roles for the health their host. While such microbiomes been deeply examined in invertebrates as corals sponges, living on vertebrates received less attention. Specifically, diversity these microbiomes, variability among species, drivers are still mostly unknown, especially fish species coral reefs that contribute to key ecosystem services while they increasingly affected human...
Host-microbe interactions play crucial roles in marine ecosystems. However, we still have very little understanding of the mechanisms that govern these relationships, evolutionary processes shape them, and their ecological consequences. The holobiont concept is a renewed paradigm biology can help to describe understand complex systems. It posits host its associated microbiota with which it interacts, form holobiont, be studied together as coherent biological functional unit biology, ecology,...
The annual changes in the composition and abundance of ammonia-oxidizing archaea (AOA) were analyzed monthly surface waters three high mountain lakes within Limnological Observatory Pyrenees (LOOP; northeast Spain) using both 16S rRNA functional (ammonia monooxygenase gene, amoA) gene sequencing as well quantitative PCR amplification. set biological data was related to nitrogen species other relevant environmental variables. whole archaeal assemblage dominated by phylotypes closely...
Four stratified basins in Lake Kivu (Rwanda-Democratic Republic of the Congo) were sampled March 2007 to investigate abundance, distribution, and potential biogeochemical role planktonic archaea. We used fluorescence situ hybridization with catalyzed-reported deposition microscopic counts (CARD-FISH), denaturing gradient gel electrophoresis (DGGE) fingerprinting, quantitative PCR (qPCR) signature genes for ammonia-oxidizing archaea (16S rRNA marine Crenarchaeota group 1.1a [MCG1] ammonia...
Traditionally, microbial surveys investigating the effect of chronic anthropogenic pressure such as polyaromatic hydrocarbons (PAHs) contaminations consider just alpha and beta diversity ignore interactions among different taxa forming community. Here, we investigated ecological relationships between three domains life (i.e. Bacteria, Archaea Eukarya) using 454 pyrosequencing data 16S rRNA 18S genes from chronically impacted pristine sediments, along coasts Mediterranean Sea (Gulf Lion,...
Animals have been developing key associations with micro-organisms through evolutionary processes and ecological diversification. Hence, in some host clades, phylogenetic distance between hosts is correlated to dissimilarity microbiomes, a pattern called phylosymbiosis. Teleost fishes, despite being the most diverse ancient group of vertebrates, received little attention from microbiome perspective our understanding its determinants currently limited. In this study, we assessed gut 12...
Summary We have surveyed the first 1 m of 10 oligotrophic high mountain lakes in Central Pyrenees (Spain) for both abundance and predominant phylotypes richness archaeaplankton assemblage, using CARD‐FISH 16S rRNA gene sequencing respectively. Archaea inhabiting air‐water surface microlayer (neuston) ranged between 3% 37% total 4,6‐diamidino‐2‐phenylindole (DAPI) counts were mainly Crenarchaeota a new freshwater cluster distantly related to Marine Group 1.1a. Conversely, most from underlying...
We investigated the spatial distribution and diversity of ammonia-oxidizing Archaea (AOA) across gradients pH, trophic status altitude in a set high mountain lakes (Limnological Observatory Pyrenees, north-east Spain). Both phylogeny- taxonomy-based approaches revealed well-defined AOA community patterns with pH as main potential driving environmental factor. The I.1a SAGMGC-1 Thaumarchaeota clusters, their potentially associated amoA gene variants (clusters Fresh 5 Soil/Fresh 1,...
Microbial communities from hypersaline ponds, dominated by halophilic archaea, are considered specific of such extreme conditions. The associated viral have accordingly been shown to display features, as similar morphologies among different sites. However, little is known about the genetic diversity these across Earth. Here, we studied in ponds sampled on coast Senegal (8-36% salinity) using metagenomics approach, and compared them with viromes Australia Spain. specificity hyperhalophilic...
Benthic microorganisms are key players in the recycling of organic matter and recalcitrant compounds such as polyaromatic hydrocarbons (PAHs) coastal sediments. Despite their ecological importance, response microbial communities to chronic PAH pollution, one major threats ecosystems, has received very little attention. In largest surveys performed so far on sediments, diversity composition inhabiting both chronically contaminated non-contaminated sediments were investigated using...
Abstract Background The impact of the microbiota on host fitness has so far mainly been demonstrated for bacterial microbiome. We know much less about host-associated protist and viral communities, largely due to technical issues. However, all microorganisms within a microbiome potentially interact with each other as well environment, therefore likely affecting health. Results set out explore how environmental factors shape composition diversity bacterial, microbial communities in Pacific...
Bacteria and Archaea of the air-water surface microlayer (neuston) plankton from three high mountain lakes (Limnological Observatory Pyrenees, Spain) were analysed by 16S rRNA gene 454 pyrosequencing (V6 region) in two dates with different atmospheric aerosol loading conditions: (1) under a Saharan dust plume driven southern winds; (2) northern winds oceanic influence. In general, bacterial communities richer than archaea, estimated total richness c. 2500 OTUs for 900 equivalent to...
Marine animals surfaces host diverse microbial communities, which play major roles for host's health. Most inventories of marine animal surface microbiota have focused on corals and fishes, while cetaceans remain overlooked. The few studies wild cetaceans, making difficult to distinguish intrinsic inter- and/or intraspecific variability in skin from environmental effects. We used high-throughput sequencing assess the 4 body zones 8 bottlenose dolphins (Tursiops truncatus) killer whales...
Abstract Planktonic Archaea have been detected in all the world's oceans and are found from surface waters to deep sea. The two most common phyla Thaumarchaeota Euryarchaeota. Euryarchaeota generally more waters, but very little is known about their ecology potential metabolisms. In this study, we explore genomic of Marine Group II (MGII), main marine planktonic Euryarchaeota, test if it composed different ecologically relevant units. We re‐analyzed Tara Oceans metagenomes photic layer ocean...
Summary Around the world, several dozen deep sedimentary aquifers are being used for storage of natural gas. Ad hoc studies microbial ecology some them have suggested that sulfate reducing and methanogenic microorganisms play a key role in how these aquifers' communities function. Here, we investigate influence gas on two metabolic groups by using high‐throughput sequencing show importance sulfate‐reducing Desulfotomaculum new monophyletic group. Aquifer diversity was significantly related...
Abstract Despite its widespread distribution and high levels of phylogenetic diversity, microbes are poorly understood creatures. We applied a ecology approach in the Kingdom Euryarchaeota (Archaea) to gain insight into environmental evolutionary history one most ubiquitous largely unknown microbial groups. compiled 16S rRNA gene sequences from our own sequence libraries public genetic databases for two mesophilic clades, Lake Dagow Sediment (LDS) Rice Cluster‐V (RC‐V). The inferred...