Shewanella frigidimarina NCIMB 400

Shewanella frigidimarina NCIMB 400 is a gram-negative, heterotrophic bacterium characterized by its bacilli shape and facultative anaerobic metabolism. This species exhibits a unique arrangement of cells, typically found in pairs or singles. It is motile, possessing flagella that facilitate its movement in various environments. The optimal growth temperature for Shewanella frigidimarina is 20°C, placing it within the mesophilic temperature range. This adaptability allows it to thrive in multiple habitats, contributing to its ecological versatility. The bacterium has a singular replicon and a double membrane structure, which is typical of gram-negative bacteria. Notably, Shewanella frigidimarina is non-pathogenic and does not form spores, indicating that it does not possess mechanisms for surviving extreme environmental stresses through sporulation. Instead, it lives freely in various ecosystems, potentially playing a role in nutrient cycling and organic matter decomposition. In summary, Shewanella frigidimarina NCIMB 400's heterotrophic lifestyle and ability to thrive in diverse habitats highlight its ecological significance. By breaking down organic materials in its environment, it may contribute to the health and stability of marine and other ecosystems, reinforcing the importance of microbial diversity in biogeochemical processes.