Alexandre Meunier

ORCID: 0000-0001-7260-2535
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About
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Research Areas
  • Plant Virus Research Studies
  • Antibiotic Resistance in Bacteria
  • Plant and Fungal Interactions Research
  • Insect-Plant Interactions and Control
  • Magnetic and transport properties of perovskites and related materials
  • SARS-CoV-2 and COVID-19 Research
  • Bacterial biofilms and quorum sensing
  • Legionella and Acanthamoeba research
  • Vibrio bacteria research studies
  • Water Treatment and Disinfection
  • Liquid Crystal Research Advancements
  • Marine and coastal plant biology
  • Plant Disease Resistance and Genetics
  • Genomics and Phylogenetic Studies
  • Antibiotic Use and Resistance
  • Seed and Plant Biochemistry
  • Plant Pathogenic Bacteria Studies
  • Photochemistry and Electron Transfer Studies
  • Diabetes and associated disorders
  • Animal Virus Infections Studies
  • Pacific and Southeast Asian Studies
  • interferon and immune responses
  • Shape Memory Alloy Transformations
  • Genetics and Neurodevelopmental Disorders
  • Immune Cell Function and Interaction

Centre Hospitalier Universitaire de Besançon
2018-2024

Helix (United States)
2023-2024

Laboratoire Chrono-Environnement
2018-2023

Centre National de la Recherche Scientifique
2017-2022

Université de Bourgogne
2018-2022

Hospices Civils de Lyon
2022

Centre International de Recherche en Infectiologie
2022

Inserm
2022

Université Claude Bernard Lyon 1
2022

Délégation Paris 5
2020

A study of molecular diversity was carried out on 136 sugar beets infected with Beet necrotic yellow vein virus (BNYVV, Benyvirus ) collected worldwide. The nucleotide sequences the RNA-2-encoded CP, RNA-3-encoded p25 and RNA-5-encoded p26 proteins were analysed. resulting phylogenetic trees allowed BNYVV to be classified into groups that show correlations between clusters geographic origins. selective constraints these three measured by estimating ratio synonymous non-synonymous...

10.1099/vir.0.81167-0 article EN Journal of General Virology 2005-09-26

ABSTRACT Three soilborne viruses transmitted by Polymyxa betae KESKIN in sugar beet have been described: Beet necrotic yellow vein virus (BNYVV), the agent of rhizomania, (BSBV), and Q (BVQ). A multiplex reverse transcription-PCR technique was developed to simultaneously detect BNYVV, BSBV, BVQ, together with their vector, P. . The detection threshold test up 128 times greater than that an enzyme-linked immunosorbent assay. Systematic association BNYVV one or two different pomoviruses...

10.1128/aem.69.4.2356-2360.2003 article EN Applied and Environmental Microbiology 2003-04-01

C$_{4}$ photosynthesis is a complex trait that sustains fast growth and high productivity in tropical subtropical conditions evolved repeatedly flowering plants. One of the major lineages Andropogoneae, group $\sim $1200 grass species includes some world's most important crops dominating temperate grasslands. Previous efforts to understand evolution have compared few model plants distantly related C$_{3}$ so changes directly responsible for transition could not be distinguished from those...

10.1093/sysbio/syz066 article EN cc-by Systematic Biology 2019-10-01

The advent of next-generation sequencing has boosted the analysis bacterial genome evolution. Insertion sequence (IS) elements play a key role in prokaryotic organization and evolution, but their repetitions genomes complicate detection from short-read data.PanISa is software pipeline that identifies IS insertions ab initio data. It highly sensitive precise tool based on read-mapping patterns at insertion site. PanISa performs better than existing systems as it database-free approach. We...

10.1093/bioinformatics/bty479 article EN Bioinformatics 2018-06-13

To assess the extent to which food items are a source of extended-spectrum β-lactamase (ESBL) -producing Escherichia coli (ESBL-Ec) and ESBL-producing Klebsiella pneumoniae (ESBL-Kp) for humans in five European cities.We sampled 122 human polluted (hp)-environments (sewers rivers, as proxy contamination) 714 Besançon (France), Geneva (Switzerland), Sevilla (Spain), Tübingen (Germany) Utrecht (The Netherlands). A total 254 ESBL-Ec 39 ESBL-Kp isolates were cultured. All genomes fully sequenced...

10.1016/j.cmi.2021.07.022 article EN cc-by-nc-nd Clinical Microbiology and Infection 2021-07-26

To determine prevalence, incidence, and factors associated with Pseudomonas aeruginosa (PA) intestinal carriage in residents of long-term care facilities (LTCFs) to understand the population structure this pathogen LTCFs from two European countries.We assessed prevalence PA incidence acquisition by collecting fecal samples 403 20 LTCFs. We collected 289 environmental sinks drinking water. Factors were identified. All isolates had their antibiotic phenotypic resistance profile determined...

10.1016/j.cmi.2022.05.004 article EN cc-by-nc-nd Clinical Microbiology and Infection 2022-05-18

Infections with antibiotic-resistant pathogens in cancer patients are a leading cause of mortality. Cancer treated compounds that can damage bacterial DNA, potentially triggering the SOS response, which turn enhances mutation rate. Antibiotic resistance readily occurs after core genes. Thus, we tested whether chemotherapy drugs enhance emergence resistant mutants commensal bacteria.Induction response was incubation Escherichia coli biosensors 39 chemotherapeutic at therapeutic...

10.1093/jac/dkz070 article EN Journal of Antimicrobial Chemotherapy 2019-01-29

This study aimed to determine rates and risk factors of extended-spectrum β-lactamase-producing Enterobacteriaceae (ESBL-PE) acquisition transmission within households after hospital discharge an ESBL-PE-positive index patient.Two-year prospective cohort in five European cities. Patients colonized with ESBL-producing Escherichia coli (ESBL-Ec) or Klebsiella pneumoniae (ESBL-Kp), their household contacts were followed up for 4 months the case. At each follow up, participants provided a faecal...

10.1016/j.cmi.2020.12.024 article EN cc-by-nc-nd Clinical Microbiology and Infection 2021-01-09

Abstract Background The evaluation process of French medical students will evolve in the next few years order to improve assessment validity. Script concordance testing (SCT) offers possibility assess knowledge alongside clinical reasoning under conditions uncertainty. In this study, we aimed at comparing SCT scores a large cohort undergraduate students, according experience level reference panel. Methods 2019, authors developed 30-item and sent it experts with varying levels experience....

10.1186/s12909-020-02243-w article EN cc-by BMC Medical Education 2020-09-17

Formation of stable glassy phases can be induced through rational design in compounds which otherwise readily crystallize, such as tetraphenylporphyrin, by simple functionalization with moieties known to promote glass formation mexylaminotriazine units.

10.1021/ol100139t article EN Organic Letters 2010-03-29

A survey was carried out to detect Beet necrotic yellow vein virus (BNYVV) in soil samples using RT‐PCR and bait plant techniques from the sugar beet production area of Tokat, Turkey 2001. More than 80% analyzed were found be contaminated with virus. The partial nucleotide sequence cDNA corresponding RNA‐3 BNYVV isolates for six different regions Tokat province. All assigned type strains based on RFLP analysis DNA sequences. Sequence comparison revealed differences at amino acid positions...

10.1111/j.1365-3059.2006.01493.x article EN Plant Pathology 2006-11-29

We carried out a population genetic study of 14 populations (692 plants characterised at 23 microsatellite loci) the plant species Antirrhinum majus L. (Plantaginaceae) across its geographic range. Our results showed that A. are genetically differentiated and diverse. also found small but statistically significant differentiation between subspecies pseudomajus striatum. Genetic diversity was higher in pseudomajus. Geographic distance both latitudinal longitudinal coordinates had no impact on...

10.1080/23818107.2017.1310056 article EN cc-by-nc-nd Botany Letters 2017-04-03

The biological features that allow a pathogen to survive in the hospital environment are mostly unknown. extinction of bacterial epidemics hospitals is attributed changes medical practice, including infection control, but role adaptation has never been documented. We analysed collection Pseudomonas aeruginosa isolates belonging Besançon Epidemic Strain (BES), responsible for 12year nosocomial outbreak, using genotype-to-phenotype approach. Bayesian analysis estimated emergence clone 5 years...

10.1099/mgen.0.000629 article EN cc-by Microbial Genomics 2021-09-02

Beet necrotic yellow vein virus (BNYVV), the causal agent of rhizomania disease on sugar beet, has been reported in Belgium for more than 16 years. Other soilborne viruses belonging to genus Pomovirus, such as (BSBV) (3) and Q (BVQ) (1), are suspected pathogens beets grown Belgium. During 2000 growing season, 20 fields showing rhizomania-like yellowing symptoms beet leaves were investigated presence BVQ, BNYVV, BSBV. All samples checked by enzyme-linked immunosorbent assay (ELISA) using...

10.1094/pdis.2001.85.12.1288b article EN Plant Disease 2001-12-01
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