navicella

Navicella is a genus of bacteria belonging to the family Comamonadaceae, which is part of the class Alphaproteobacteria. These bacteria are known for their ability to move through liquid environments using a single polar flagellum, which is a whip-like structure that propels the bacterium in a specific direction. This motility is crucial for their survival and ability to colonize various ecological niches.

Navicella species are typically found in freshwater and marine environments, where they play a role in the decomposition of organic matter and the cycling of nutrients. They are also known to be opportunistic pathogens, capable of causing infections in humans and other animals. For example, Navicella alginolytica has been associated with infections in immunocompromised individuals and has been implicated in cases of septicemia and meningitis.

The genus Navicella was first described in 1985, and it includes several species, with Navicella alginolytica being the most well-known. These bacteria are characterized by their ability to produce alginate, a polysaccharide that helps them adhere to surfaces and form biofilms. This ability to form biofilms is a significant factor in their pathogenicity and their role in the colonization of various environmental niches.

In summary, Navicella is a genus of motile bacteria that play important roles in both environmental and clinical settings. Their ability to move through liquid environments, produce alginate, and form biofilms makes them a significant group of study in microbiology and environmental science.