Shigella boydii strain ECH+23

Shigella boydii strain ECH+23 is a Gram-negative rod-shaped bacterium that is primarily associated with hosts, specifically Homo sapiens and Metazoa. This organism is classified as a chemoorganotroph, relying on organic compounds for energy. It exhibits a facultative anaerobic metabolism, allowing it to thrive in both the presence and absence of oxygen. The strain is characterized by a cell arrangement that can be observed in pairs or as single cells. Notably, Shigella boydii ECH+23 possesses flagella, although it is non-motile, indicating a potential adaptation for its ecological niche. It has a mesophilic temperature range, with an optimal growth temperature of 37°C, which coincides with the average human body temperature, reinforcing its association with human hosts. Shigella boydii is known to cause shigellosis, a significant health concern characterized by gastrointestinal symptoms. The bacterium has one replicon and is surrounded by two membranes, which is typical for Gram-negative bacteria. Its free-living biotic relationship suggests that while it can exist independently, it is primarily pathogenic when associated with its hosts. The ecological insight here is that the successful adaptation of Shigella boydii strain ECH+23 to the human host, alongside its ability to exploit a range of environmental conditions, underscores its role in human health and disease dynamics. This adaptability may contribute to its persistence and pathogenicity within human populations.