Salmonella enterica subsp. enterica serovar Newport strain SE76

Salmonella enterica subsp. enterica serovar Newport strain SE76 is a notable pathogen primarily associated with various hosts, including humans (Homo sapiens), cattle (Bos), certain birds from the family Phasianidae, and raccoons (Procyon lotor). This bacterium is characterized as a microaerophilic, Gram-negative chemoorganotroph, indicating that it requires oxygen at lower levels than atmospheric conditions to thrive and derives energy from organic compounds. The cells of strain SE76 are arranged in chains and singles, and they exhibit a spirilla shape. The presence of flagella suggests that the organism has motility capabilities, although specific mobility details indicate it does not actively move. This strain has a mesophilic temperature range, with an optimal growth temperature of 37°C, which aligns with the average body temperature of its hosts, facilitating infection and colonization. Strain SE76 contains a single replicon and is surrounded by two membranes, typical of Gram-negative bacteria. Its free-living biotic relationship indicates that it can exist independently in the environment, although it is primarily associated with host organisms. Understanding the ecological dynamics of Salmonella enterica serovar Newport strain SE76 is critical, as its ability to thrive in specific host environments and its adaptation to microaerophilic conditions highlight its potential for transmission and persistence in both domestic and wild animal populations, ultimately impacting public health and food safety.