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  • Title: Complete genome sequence of Bacillus velezensis QST713: A biocontrol agent that protects Agaricus bisporus crops against the green mould disease.
    Author: Pandin C, Le Coq D, Deschamps J, Védie R, Rousseau T, Aymerich S, Briandet R.
    Journal: J Biotechnol; 2018 Jul 20; 278():10-19. PubMed ID: 29702132.
    Abstract:
    Bacillus subtilis QST713 is extensively used as a biological control agent in agricultural fields including in the button mushroom culture, Agaricus bisporus. This last use exploits its inhibitory activity against microbial pathogens such as Trichoderma aggressivum f. europaeum, the main button mushroom green mould competitor. Here, we report the complete genome sequence of this bacterium with a genome size of 4 233 757 bp, 4263 predicted genes and an average GC content of 45.9%. Based on phylogenomic analyses, strain QST713 is finally designated as Bacillus velezensis. Genomic analyses revealed two clusters encoding potential new antimicrobials with NRPS and TransATPKS synthetase. B. velezensis QST713 genome also harbours several genes previously described as being involved in surface colonization and biofilm formation. This strain shows a strong ability to form in vitro spatially organized biofilm and to antagonize T. aggressivum. The availability of this genome sequence could bring new elements to understand the interactions with micro or/and macroorganisms in crops.
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