Project description:Ligilactobacillus salivarius is an important member of the human and animal gut microbiota, and selected strains are promising probiotics, but knowledge of the characteristics of avian isolates is still limited. In this study, we examined selected phenotypic and genotypic traits of 33 L. salivarius strains from geese, chickens, turkeys and pigeons. The strains varied in terms of cell size, colony morphology, broth growth characteristics, biofilm formation, tolerance to bile, hydrophobicity and phenotypic and genotypic antibiotic resistance profiles. Large variation among strains was noted for the utilization of sorbitol, salicin, trehalose, rhamnose, inulin and N-acetyl-D-glucosamine. The presence of genes related to sugar metabolism, i.e., mipB, tktA, rhaB and LSL_1894, was not always correlated with the biochemical phenotypic profile. Correlations were recorded between the host and utilization of certain sugars as well as tolerance to bile. The repA-type megaplasmid and genes coding for Abp118 bacteriocin were detected in 94% and 51.5% of L. salivarius strains, respectively. Phylogeny based on groEL gene sequences was partly correlated with the origin of the strains and revealed an evolutionary distance between L. salivarius strains from humans and birds. The results of the study contribute to knowledge of the characteristics of the species L. salivarius. Intraspecies variations of L. salivarius strains may affect their ability to colonize specific niches and utilize nutrients and reveal potential strain-dependent effects on host health.
Project description:The article presents Ligilactobacillus salivarius 2102-15 whole genome sequencing data generated by using Illumina and Oxford Nanopore platforms. The genome of the isolate consists of a chromosome and two plasmids. The data on bacteriocin-encoding genes present in the genome were collected through genome annotation and by using a BAGEL4 tool. The advantages and limitations of the approaches are highlighted. The data indicate the presence of different types of bacteriocin and immunity protein-encoding genes on both the chromosome and one of the plasmids. The data obtained represents interest to researchers working in the areas related to whole genome sequencing and analysis, as well as being useful for the identification of novel probiotic bacteria and their biomedical applications.