Fusobacterium nucleatum subsp. nucleatum ATCC 23726

Fusobacterium nucleatum subsp. nucleatum ATCC 23726 is a Gram-negative, anaerobic, rod-shaped bacterium characterized as a chemoheterotroph. This species typically thrives in host-associated environments, indicating a close relationship with living organisms. It is notable for its ability to exist in pairs, which may play a role in its interactions within biological systems. F. nucleatum ATCC 23726 is nonmotile and does not produce spores, which suggests a reliance on stable environments for survival. With an optimal growth temperature of 37°C, it falls within the mesophilic range, making it well-suited to the body temperature of warm-blooded hosts. The bacterium has a unique cellular structure, comprising two membranes and a single replicon, which is characteristic of Gram-negative bacteria. In terms of its ecological role, F. nucleatum is classified as free-living, which highlights its ability to thrive independently in its habitats. This may suggest its potential involvement in various ecological interactions, particularly within the human microbiome, where it may influence health and disease states. The bacterium's presence in the host-associated environment underscores its significance in microbial communities, particularly in relation to oral health and systemic conditions. Overall, the traits of F. nucleatum ATCC 23726 reflect its adaptation to specific ecological niches and its potential impact on host organisms.