Escherichia coli strain NCTC8621

Escherichia coli strain NCTC8621 is a Gram-negative, rod-shaped bacterium that is classified as a facultative anaerobe, capable of thriving in both aerobic and anaerobic environments. This strain is motile, possessing flagella, and typically exists in cell arrangements of singles or pairs. It is mesophilic, with an optimal growth temperature of 37°C. NCTC8621 has a wide host range, being associated with various organisms including Homo sapiens, Gallus gallus, Bos taurus, and numerous other mammals, birds, and even some plants like Solanum lycopersicum and Brassica oleracea var. italica. It exhibits free-living biotic relationships, indicating its ability to survive independently in various environments. Clinically, NCTC8621 is notable for its pathogenicity in humans, being implicated in a multitude of health issues such as urinary tract infections (UTIs), gastrointestinal infections, neonatal meningitis, and even severe conditions like hemolytic uremic syndrome (HUS). The strain can cause significant health impacts including diarrhea, renal failure, and complications during pregnancy. The presence of E. coli strain NCTC8621 in diverse ecological niches, along with its association with various hosts, underscores its adaptability and potential role in both health and disease. This strain exemplifies the complex interactions within microbial communities and highlights the importance of monitoring pathogenic strains in clinical and environmental contexts to mitigate health risks.