A5032360812- Aquaculture disease management and microbiota
- Micro and Nano Robotics
- Vibrio bacteria research studies
- Protist diversity and phylogeny
- Bacteriophages and microbial interactions
- Legionella and Acanthamoeba research
- CRISPR and Genetic Engineering
- Pharmaceutical and Antibiotic Environmental Impacts
- Indoor Air Quality and Microbial Exposure
- Antibiotic Use and Resistance
- Bacterial biofilms and quorum sensing
- Microbial Community Ecology and Physiology
Institut Universitaire de Cardiologie et de Pneumologie de Québec
2017-2024
Université Laval
2017-2024
Antimicrobial resistance (AMR) is continuing to grow across the world. Though often thought of as a mostly public health issue, AMR also major agricultural and environmental problem. As such, many researchers refer it preeminent One Health issue. Aerial transport antimicrobial-resistant bacteria via bioaerosols still poorly understood. Recent work has highlighted presence antibiotic genes in bioaerosols. Emissions have been detected from various sources, including wastewater treatment...
Protozoa are natural predators of bacteria, but some bacteria can evade digestion once phagocytosed. Some these resistant be packaged in the fecal pellets produced by protozoa, protecting them from physical stresses and biocides. Depending on protozoa involved packaging process, have different morphologies. In present descriptive study, we evaluated process with 20 that never been tested before for ciliates. These various characteristics (shape, size, Gram staining). All appear to included...
Abstract Worldwide, Aeromonas salmonicida is a major bacterial pathogen of fish in both marine and freshwater environments. Despite psychrophilic growth being common for this species, the number characterized mesophilic strains increasing. Thus, species may serve as model study intraspecies lifestyle diversity. Although bacteria are preyed upon by protozoan predators, their interaction inside or outside phagocytic pathway predator can provide several advantages to bacteria. To correlate...
Background/Objectives: Antibiotic resistance gene (ARG) spread is driven by horizontal transfer (HGT). Ciliated protozoa may contribute to this process, as their predation has been shown facilitate HGT in certain bacteria. Here, phenomenon was further investigated using A. salmonicida subsp. salmonicida. This fish pathogen bears an extensive and dynamic plasmidome, suggesting a high potential for HGT. Methods: strains carrying one of three conjugative plasmids bearing ARGs (pSN254b, pRAS1b...
Multilamellar bodies (MLBs), structures composed of concentric membrane layers, are known to be produced by different protozoa, including species ciliates, free-living amoebae, and Dictyostelium discoideum social amoebae. Initially believed metabolic waste, potential roles like cell communication food storage have been suggested for D. MLBs, which could useful the multicellular development amoebae as a source. However, among dictyostelids, this phenomenon has only observed with discoideum,...