Aggregatibacter aphrophilus strain HK83

Aggregatibacter aphrophilus strain HK83 is a Gram-negative, rod-shaped bacterium that is facultatively anaerobic. This strain is primarily host-associated, indicating a close relationship with its host organisms, which can influence its metabolic activities and ecological interactions. As a member of the Aggregatibacter genus, A. aphrophilus is notable for its adaptability to various oxygen conditions, allowing it to thrive in both aerobic and anaerobic environments. This facultative nature contributes to its survival strategies within host-associated habitats, where fluctuating oxygen levels may occur. The Gram-negative cell wall structure of A. aphrophilus strain HK83 is characterized by a thin peptidoglycan layer surrounded by an outer membrane containing lipopolysaccharides, which may play a role in its interactions with the host's immune system. Understanding the specific ecological niches occupied by this strain could provide insights into its role in the microbiome of its host, potentially influencing host health and microbial community dynamics. The ability of A. aphrophilus strain HK83 to adapt to the varying conditions within host environments highlights the complexity of microbial life in symbiotic relationships, suggesting potential avenues for further research into its role in host-associated microbiomes.