{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T16:41:27Z","timestamp":1790095287028,"version":"4.0.1"},"reference-count":65,"publisher":"American Society for Microbiology","issue":"10","license":[{"start":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T00:00:00Z","timestamp":1759795200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T00:00:00Z","timestamp":1759795200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Microbiol Spectr"],"published-print":{"date-parts":[[2025,10,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title\/>\n                    <jats:p>\n                      <jats:italic toggle=\"yes\">Ligilactobacillus salivarius<\/jats:italic>\n                      is a widely used probiotic in human and animal nutrition, particularly for enhancing performance in poultry farming. Supplementing feed with this bacterium has shown benefits such as reducing\n                      <jats:italic toggle=\"yes\">Salmonella Enteritidis<\/jats:italic>\n                      colonization and promoting weight gain. This study investigated the probiotic potential of a newly isolated strain,\n                      <jats:italic toggle=\"yes\">L. salivarius<\/jats:italic>\n                      L33, obtained from the gut of broiler chickens. We employed a series of\n                      <jats:italic toggle=\"yes\">in vitro<\/jats:italic>\n                      tests to assess its probiotic characteristics. These tests evaluated its resistance to simulated digestive conditions, lack of hemolytic activity on blood cells, adherence ability to intestinal surfaces, antibiotic susceptibility, and antimicrobial activity. Whole-genome sequencing of\n                      <jats:italic toggle=\"yes\">L. salivarius<\/jats:italic>\n                      L33 using the Illumina NovaSeq6000 platform revealed 1,870 genes encoding 1,797 proteins. Comparative analysis identified 111 unique genes involved in critical cellular functions such as replication, repair, and defense mechanisms. Additionally, the genome harbored a bacteriocin gene encoding salivaricin, a potent antimicrobial compound. Furthermore, genes associated with key probiotic properties were identified, including stress tolerance, adhesion to gut epithelia, and survival in acidic and bile salt environments. These findings strongly suggest the probiotic potential of\n                      <jats:italic toggle=\"yes\">L. salivarius<\/jats:italic>\n                      L33. The presence of genes linked to established probiotic functionalities and its similarity to known probiotic strains of\n                      <jats:italic toggle=\"yes\">L. salivarius<\/jats:italic>\n                      make it a promising candidate for further research and development as a novel probiotic for poultry applications.\n                    <\/jats:p>\n                    <jats:sec>\n                      <jats:title>IMPORTANCE<\/jats:title>\n                      <jats:p>\n                        <jats:italic toggle=\"yes\">Ligilactobacillus salivarius<\/jats:italic>\n                        is a well-studied probiotic with proven benefits in poultry farming, including improved growth and reduced pathogen colonization. This study characterizes a novel strain,\n                        <jats:italic toggle=\"yes\">L. salivarius<\/jats:italic>\n                        L33, isolated from broiler chickens, and demonstrates its potential as a probiotic through genomic and functional analyses. The strain\u2019s genome reveals genes linked to stress tolerance, gut adhesion, and antimicrobial activity, including salivaricin, a bacteriocin with broad anti-pathogen effects. These findings are significant because they highlight L33\u2019s promise as a natural, safe alternative to antibiotics in poultry production, aligning with global efforts to reduce antimicrobial resistance. Further development of this strain could enhance animal health, productivity, and food safety, offering economic and public health benefits.\n                      <\/jats:p>\n                    <\/jats:sec>\n                  <\/jats:sec>","DOI":"10.1128\/spectrum.01591-24","type":"journal-article","created":{"date-parts":[[2025,8,15]],"date-time":"2025-08-15T13:56:58Z","timestamp":1755266218000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":5,"title":["Whole-genome analysis of\n                    <i>Ligilactobacillus salivarius<\/i>\n                    L33, a potential probiotic strain isolated from chicken gastrointestinal tract"],"prefix":"10.1128","volume":"13","author":[{"given":"Seyedeh Arezoo","family":"Maniee","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/048e0p659","id-type":"ROR","asserted-by":"publisher"}],"name":"Department of Cellular and Molecular Biology, College of Science 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