Listeria monocytogenes serotype 4b str. LL195

Listeria monocytogenes serotype 4b str. LL195 is a Gram-positive bacterium characterized by its rod shape and tendency to form chains or exist as singles. This organism is a facultative anaerobe, allowing it to thrive in both aerobic and anaerobic environments, and it is classified as a chemoorganotroph, utilizing organic compounds as its energy source. Listeria monocytogenes LL195 does not exhibit mobility, despite possessing flagella. This strain has an optimal growth temperature of 30°C and falls within the mesophilic temperature range, indicating that it prefers moderate temperatures for growth. It contains a single replicon and has one membrane, which is typical for bacteria of this genus. Ecologically, Listeria monocytogenes serotype 4b str. LL195 is free-living, suggesting its potential to inhabit various environments, including soil, water, and decaying organic matter. Its ability to survive in multiple habitats may contribute to its role as a pathogen, as it can be transmitted through contaminated food products to humans and animals. Understanding the ecological niches of Listeria monocytogenes is essential for developing strategies to mitigate its spread and impact on public health. The accession number for this strain is NC_019556.1, which provides a reference for further study and comparison with other Listeria species and strains.