Citrobacter koseri ATCC BAA-895

Citrobacter koseri ATCC BAA-895 is a gram-negative, rod-shaped bacterium that thrives at mesophilic temperatures, prefers to utilize organic compounds as a carbon source, and is classified as a facultative anaerobe. This species belongs to the Enterobacteriaceae family and is commonly found in the human gut, as well as in various environmental sources such as soil and water.The gram-negative characteristic of C. koseri signifies a thinner peptidoglycan layer and an outer membrane containing lipopolysaccharides, which contributes to its virulence. Its rod shape is typical of many Enterobacteriaceae, providing mobility and surface area for nutrient absorption. As a mesophilic organism, C. koseri flourishes between 30°C and 37°C, making it well-suited for growth within human body temperatures. The facultative anaerobic nature of this microbe allows it to adapt to both aerobic and anaerobic environments, giving it the flexibility to survive in various ecological niches. C. koseri is predominantly found in the intestinal tracts of humans and animals, where it plays a role in the gut microbiome. It can also be isolated from clinical specimens, particularly in immunocompromised patients, where it is associated with opportunistic infections. Pathogenic strains have been implicated in neonatal meningitis and other serious infections, emphasizing the importance of understanding this bacterium in clinical settings. Additionally, C. koseri exhibits biochemical versatility, which allows it to metabolize a wide range of substrates. This metabolic adaptability, coupled with its potential pathogenicity, makes it a significant subject of research within microbiology and infectious disease studies. Its ability to form biofilms may also contribute to its persistence in hospital environments, where it can pose a risk to vulnerable populations.