| Description | Citrobacter youngae is a Gram-negative, rod-shaped bacterium that thrives in mesophilic temperatures, classified as a chemoheterotroph, and can be found in various body sites including the gastrointestinal tract, respiratory tract, and urinary tract across different species. As a facultative anaerobe, Citrobacter youngae can survive in both aerobic and anaerobic environments, making it a versatile microorganism.The Gram-negative characteristic of Citrobacter youngae indicates that it has a thinner peptidoglycan layer in its cell wall, which is often associated with a higher resistance to antibiotics. Its rod-shaped morphology is typical of many enteric bacteria, allowing for efficient movement and colonization in its host. As a mesophile, Citrobacter youngae grows best in moderate temperatures, typically between 20-45°C, which is suitable for its common habitats in human and animal bodies. As a chemoheterotroph, Citrobacter youngae relies on organic compounds for energy and carbon sources, breaking down complex molecules to sustain its growth and survival. This metabolic capability enables it to thrive in diverse environments, from soil to the human gut. Its presence in various body sites suggests a commensal or opportunistic pathogenic relationship with its hosts. Citrobacter youngae has been implicated in several clinical infections, particularly in immunocompromised individuals, highlighting the importance of understanding its pathogenic potential. The bacterium's ability to form biofilms and exhibit antibiotic resistance mechanisms poses significant challenges for treatment. Research on Citrobacter youngae has led to a greater understanding of its genetic makeup, revealing a complex genome with multiple virulence factors and resistance genes. |
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