Escherichia coli strain NCTC9119

Escherichia coli strain NCTC9119 is a Gram-negative, rod-shaped bacterium that exhibits a facultative anaerobic lifestyle, allowing it to thrive in various oxygen conditions. It typically arranges itself in singles or pairs and is motile due to the presence of flagella. This strain is mesophilic, with an optimal growth temperature of 37°C. NCTC9119 is host-associated and can be found in a wide array of biotic relationships, primarily as a free-living organism. Its known hosts include Homo sapiens, various livestock such as Bos taurus and Sus scrofa, and even plants like Solanum lycopersicum. This broad host range highlights the strain's ecological versatility. Clinically, E. coli NCTC9119 is associated with a variety of health effects, most notably urinary tract infections (UTIs), gastrointestinal infections, and neonatal meningitis. It is linked to severe conditions such as pyogenic liver abscess, hemolytic uremic syndrome (HUS), and even complications leading to renal failure and colorectal cancer. The strain's pathogenicity specifically affects humans, underscoring its relevance in clinical microbiology. The ecological insight drawn from NCTC9119's host diversity and pathogenic potential indicates that this strain plays a significant role in both environmental and clinical contexts. Its ability to infect a wide range of organisms suggests a complex interplay between microbial ecology and human health, where E. coli can transition from a benign gut inhabitant to a pathogen under certain conditions. This duality emphasizes the importance of monitoring and understanding such strains to mitigate their health impacts.