Bacterium lactis aerogenes, also known as Enterobacter aerogenes, is a gram-negative, rod-shaped bacterium belonging to the Enterobacteriaceae family. This bacterium is commonly found in the environment, including soil, water, and sewage, as well as in the gastrointestinal tract of humans and animals.
The term "lactis" in its name refers to its ability to ferment lactose, a sugar commonly found in milk and dairy products. This characteristic plays a significant role in its identification and differentiation from other bacteria. Fermentation of lactose by Bacterium lactis aerogenes produces gas, such as carbon dioxide and hydrogen, which can lead to the appearance of gas bubbles in various culture media.
Bacterium lactis aerogenes is an opportunistic pathogen, meaning it can cause infections in individuals with weakened immune systems or in healthcare settings. It has been associated with various infections, including urinary tract infections, wound infections, pneumonia, and bloodstream infections. Its resistance to multiple antibiotics can complicate treatment and increase the risk of healthcare-associated infections.
In laboratory settings, Bacterium lactis aerogenes is often used as a model organism for studying bacterial metabolism, gene expression, and antimicrobial resistance. Its ability to produce extracellular enzymes, such as beta-lactamases, contributes to its versatility as a research tool.
Overall, Bacterium lactis aerogenes is a versatile bacterium with industrial, clinical, and research significance. Its ability to ferment lactose, along with its opportunistic pathogenic properties, makes it an important target for study in various fields.
