Publications by authors named "C Bragard"
Article Synopsis
- The study of taxonomic composition has shifted from traditional methods to advanced DNA sequencing techniques, particularly metabarcoding, which uses targeted genome portions for high-throughput sequencing.
- Recent innovations in Oxford Nanopore Technologies have made sequencing more accessible and effective while presenting specific errors and a need for refined bioinformatics tools to handle long-read data.
- PRONAME, a new open-source pipeline designed for Nanopore data, enhances sequence accuracy and supports custom database integration, achieving over 99.5% accuracy in tests, thus providing a reliable method for analyzing complex biological communities.
The persistence and efficacy of biocontrol agents in agricultural fields are crucial for sustainable crop production. In this study, we investigated the persistence of the introduced bacterial strain Pseudomonas sivasensis CF10PS3 in the wheat phyllosphere using a novel qPCR probe protocol. The CF10PS3 strain, known for its in vitro biocontrol properties against wheat pathogens, was applied through foliar spray, and its persistence was monitored over 7 weeks.
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- The EFSA Panel on Plant Health conducted an assessment of non-EU Scolytinae species that affect non-coniferous plants in the EU, highlighting 5220 relevant species out of an initial 6495.
- These beetles primarily target weakened or dead trees, with behaviors ranging from monogamous to polygynous mating systems, and many species are associated with fungi that help them weaken their hosts.
- A database was created documenting host plants, feeding habits, geographic distribution, and climate types, ultimately identifying 88 species that significantly impact plant health, categorized by their level of threat.
In accordance with the EFSA Strategy 2027 outlining the need for fit-for-purpose protocols for EFSA generic scientific assessments, the EFSA Panel on Plant Health (PLH Panel) developed standard protocols to harmonise the problem formulation process and outputs for mandates addressing recurrent scientific questions. Three types of recurring EFSA plant health mandates require generic scientific assessments: (i) pest categorisation; (ii) commodity risk assessment for the purpose of derogation to provisions of the EU plant health law and (iii) quantitative pest risk assessment. The three standard protocols are tailored to the appropriate level of detail and build on the existing guidance documents laying out the methods for conducting risk assessment in the plant health domain.
View Article and Find Full Text PDFThe European Commission requested the EFSA Panel on Plant Health to deliver a risk assessment on the likelihood of pest freedom from Union quarantine pests and pests subject to measures adopted pursuant to Article 30 of Regulation (EU) No 2016/2031 for the maple veneer sheets manufactured according to the process set out by Canada, with emphasis on the freedom from and (non-EU isolates). The assessment was conducted for veneer sheets of up to 0.7 mm and up to 6 mm thickness, taking into account the different phases in the veneer production in a systems approach.
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