Actinomyces israelii strain NCTC12972

Actinomyces israelii strain NCTC12972 is a Gram-positive, anaerobic bacterium characterized by its rod-shaped morphology. This organism is predominantly found in the saliva of its host, Homo sapiens. It is notable for its association with actinomycosis, a chronic infection that can affect various tissues in the body, often presenting as a painful and progressive disease. The strain NCTC12972 is classified as having a single replicon, which indicates a simpler genomic structure compared to organisms with multiple replicons. This characteristic may influence its genetic stability and adaptability within its ecological niche. The accession number for this strain is NZ_LR134357.1, which can be referenced for further genetic and taxonomic studies. From a biological perspective, Actinomyces israelii plays a role in the oral microbiome, where it contributes to the complex ecosystem of microbial communities. Its presence in saliva suggests a potential for interactions with other oral bacteria, which could impact oral health and disease processes. Understanding the traits and behaviors of A. israelii is essential for comprehending its role in both health and disease, particularly in the context of actinomycosis and other related conditions.