Escherichia coli strain PNUSAE019399

Escherichia coli strain PNUSAE019399 is a Gram-negative, rod-shaped bacterium typically found in pairs or as single cells. This strain is a facultative anaerobe, indicating its ability to thrive in both the presence and absence of oxygen, a trait that enhances its adaptability within various environments. The optimal growth temperature for strain PNUSAE019399 is approximately 37.0°C, aligning closely with the physiological temperature of warm-blooded hosts, which suggests a potential association with mammalian hosts. The habitat of this strain is defined as host-associated, indicating a likely symbiotic or commensal relationship with its host organisms. As a member of the Enterobacteriaceae family, E. coli strains are commonly found in the intestines of humans and other animals, where they play significant roles in digestion and nutrient absorption. The facultative anaerobic nature of strain PNUSAE019399 may facilitate its survival in diverse microenvironments within the host, ranging from oxygen-rich intestinal lumens to more anaerobic environments in deeper intestinal niches. The adaptability of this strain to varying oxygen levels and its presence in specific host-associated habitats may provide insights into its metabolic versatility and potential roles in microbial community dynamics. Understanding these traits can contribute to elucidating the ecological functions of E. coli strains within their hosts, particularly in relation to nutrient cycling and microbial interactions in the gastrointestinal tract.