Streptococcus intermedius SK54 = ATCC 27335

Streptococcus intermedius SK54, also designated as ATCC 27335, is a Gram-positive, cocci-shaped bacterium, belonging to the genus Streptococcus. This microbe prefers mesophilic temperatures, thriving optimally at around 37°C, making it well-suited to the human body. Streptococcus intermedius SK54 is a chemoheterotroph, deriving its energy through the fermentation of organic compounds. It is primarily found in various body sites, including the oral cavity, gastrointestinal tract, and female genital tract, indicating its role as a common commensal organism. As a facultative anaerobe, S. intermedius can grow in both the presence and absence of oxygen, allowing it to adapt to different environments within the human host. This adaptability is crucial for its survival in diverse ecological niches, ranging from oxygen-rich areas to more anaerobic locales. The ability of S. intermedius to successfully colonize various body sites underscores its contribution to the microbiota, where it can play both beneficial and pathogenic roles. While it generally exists harmlessly as part of normal flora, this bacterium is also recognized for its potential to cause opportunistic infections. It has been implicated in conditions such as abscess formations and endocarditis, particularly in immunocompromised hosts. S. intermedius is of particular interest in the field of microbiology due to its involvement in polymicrobial infections. Its close association with other microorganisms highlights its role in the complex interactions within the human microbiome, influencing health and disease states. Additionally, S. intermedius has been studied for its enzyme production, notably proteases and amylases, which points to its potential applications in biotechnology and pharmaceuticals.