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dc.contributor.authorCandeliere, Francescoen_US
dc.contributor.authorRaimondi, Stefanoen_US
dc.contributor.authorSpampinato, Gloriaen_US
dc.contributor.authorTay, Moon Yue Fengen_US
dc.contributor.authorAmaretti, Albertoen_US
dc.contributor.authorSchlundt, Joergenen_US
dc.contributor.authorRossi, Maddalenaen_US
dc.identifier.citationCandeliere, F., Raimondi, S., Spampinato, G., Tay, M. Y. F., Amaretti, A., Schlundt, J. & Rossi, M. (2021). Comparative genomics of Leuconostoc carnosum. Frontiers in Microbiology, 11.
dc.description.abstractLeuconostoc carnosum is a known colonizer of meat-related food matrices. It reaches remarkably high loads during the shelf life in packaged meat products and plays a role in spoilage, although preservative effects have been proposed for some strains. In this study, the draft genomes of 17 strains of L. carnosum (i.e., all the strains that have been sequenced so far) were compared to decipher their metabolic and functional potential and to determine their role in food transformations. Genome comparison and pathway reconstruction indicated that L. carnosum is a compact group of closely related heterofermentative bacteria sharing most of the metabolic features. Adaptation to a nitrogen-rich environment, such as meat, is evidenced by 23 peptidase genes identified in the core genome and by the autotrophy for nitrogen compounds including several amino acids, vitamins, and cofactors. Genes encoding the decarboxylases yielding biogenic amines were not present. All the strains harbored 1-4 of 32 different plasmids, bearing functions associated to proteins hydrolysis, transport of amino acids and oligopeptides, exopolysaccharides, and various resistances (e.g., to environmental stresses, bacteriophages, and heavy metals). Functions associated to bacteriocin synthesis, secretion, and immunity were also found in plasmids. While genes for lactococcin were found in most plasmids, only three harbored the genes for leucocin B, a class IIa antilisterial bacteriocin. Determinants of antibiotic resistances were absent in both plasmids and chromosomes.en_US
dc.relation.ispartofFrontiers in Microbiologyen_US
dc.rights© 2021 The Author(s). This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.en_US
dc.titleComparative genomics of Leuconostoc carnosumen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.researchNTU Food Technology Centreen_US
dc.description.versionPublished versionen_US
dc.subject.keywordsLeuconostoc Carnosumen_US
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