Propionibacterium freudenreichii subsp. shermanii CIRM-BIA1

Propionibacterium freudenreichii subsp. shermanii CIRM-BIA1 is a gram-positive, non-motile rod-shaped bacterium that exhibits facultative anaerobic characteristics, allowing it to thrive in both aerobic and anaerobic environments. This microorganism is classified as mesophilic, indicating that it grows optimally at moderate temperatures. P. freudenreichii subsp. shermanii CIRM-BIA1 has a single membrane and possesses one replicon, which supports its genetic stability and efficient replication. This strain is free-living and does not exhibit pathogenicity, making it a safe organism for study and potential applications in food production and microbiology. Notably, P. freudenreichii subsp. shermanii is non-sporulating, which influences its survival strategies and ecological roles in its various habitats. The strain is documented under the accession number NC_014215.1, which provides a reference for genetic and genomic studies. Understanding the traits of P. freudenreichii subsp. shermanii CIRM-BIA1 contributes to insights into its ecological roles, particularly in dairy fermentation processes, where it is known for its contribution to flavor and texture in cheese production. Its non-pathogenic nature and ability to thrive in diverse environments reflect its potential as a beneficial microorganism within both natural ecosystems and industrial applications.