Lactococcus lactis strain SRCM103457

Lactococcus lactis strain SRCM103457 is a Gram-positive, non-motile cocci that typically forms chains and exhibits facultative anaerobic metabolism. This strain is mesophilic, with an optimal temperature for growth at 40°C, and it possesses a single membrane and one replicon. Lactococcus lactis is known for its diverse habitat, being free-living and associated with various hosts, including Homo sapiens, Bos taurus, and other Metazoa. It has been implicated in several health conditions such as endocarditis, peritonitis, intra-abdominal infections, and mastitis, indicating its potential pathogenicity in humans. However, it is also noted to be non-pathogenic under certain conditions, suggesting a complex relationship with its hosts. The strain does not undergo sporulation, which is characteristic of many Lactococcus species. While it lacks mobility due to the absence of flagella, its ability to thrive in multiple environments highlights its ecological versatility. The presence of Lactococcus lactis in various hosts and its association with both health benefits and disease raises important questions regarding its role in microbial communities and interactions within host organisms. Understanding this strain's ecological dynamics may provide insights into its potential applications in food microbiology and probiotics, as well as its implications for human and animal health.