Comparative genome analysis of microbial strains marketed for probiotic interventions: an extension of the Integrated Probiotic Database.

Members of the genus and lactobacilli are the most commonly used probiotics to promote human health. In this context, genome-based analyses have been demonstrated as a fast and reliable tool for identifying and characterizing health-promoting activities imputed to probiotics. This study is an extension of the Integrated Probiotic Database (IPDB) previously created on probiotics of the genus , facilitating a comprehensive understanding of the genetic characteristics that contribute to the diverse spectrum of beneficial effects of probiotics.

Optimal Representative Strain selector-a comprehensive pipeline for selecting next-generation reference strains of bacterial species.

Although it is common practice to use historically established 'reference strains' or 'type strains' for laboratory experiments, this approach often overlooks how effectively these strains represent the full ecological, genetic and functional diversity of the species within a specific ecological niche. In this context, this study proposes the Optimal Representative Strain (ORS) selector tool (https://zenodo.org/doi/10.

Molecular cross-talk among human intestinal bifidobacteria as explored by a human gut model.

Bifidobacteria are well known as common and abundant colonizers of the human gut and are able to exert multiple beneficial effects on their host, although the cooperative and competitive relationships that may occur among bifidobacterial strains are still poorly investigated. Therefore, to dissect possible molecular interactions among bifidobacterial species that typically colonize the human gut, three previously identified bifidobacterial prototypes, i.e.

Exploring the vitamin biosynthesis landscape of the human gut microbiota.

The human gut microbiota possesses the capacity to synthesize vitamins, especially B group vitamins, which are recognized as indispensable for various biological processes both among members of these bacterial communities and host cells. Accordingly, vitamin production by intestinal commensals has attracted significant interest. Nevertheless, our current understanding of bacterial vitamin synthesis is primarily based on individual genomic and monoculture investigations, therefore not providing an overall view of the biosynthetic potential of complex microbial communities.