Aggregatibacter aphrophilus

Aggregatibacter aphrophilus is a Gram-negative, rod-shaped bacterium that is facultatively anaerobic and mesophilic, thriving in moderate temperature ranges. It possesses a unique cellular structure characterized by two membranes and a single replicon in its genome, with accessions demonstrating its genetic composition (QEQC00000000.1). Notably, this microbe lacks motility, and while it possesses flagella, these structures do not facilitate movement. A. aphrophilus is primarily host-associated, indicating its presence in or on living organisms, and it is classified as free-living within its ecological niche. The bacterium exhibits pathogenicity in humans, although specific pathogenic mechanisms are not outlined in the available data. The combination of its environmental adaptability, cellular features, and association with hosts suggests that A. aphrophilus may play a significant role in the microbiota of specific hosts, potentially influencing host health and disease dynamics. The understanding of its interactions within host systems could provide insights into its biological significance and ecological roles.