Bdellovibrionaceae

Bdellovibrionaceae is a family of bacteria that belongs to the order Bdellovibrionales. These bacteria are unique in their predatory behavior, as they are capable of invading and killing other bacteria. This characteristic has led to interest in their potential use as biocontrol agents.

Taxonomy

The family Bdellovibrionaceae is part of the order Bdellovibrionales, within the class Deltaproteobacteria. It includes two genera: Bdellovibrio and Bacteriovorax.

Characteristics

Members of the Bdellovibrionaceae family are small, Gram-negative bacteria with a unique, comma-shaped morphology. They are motile, using a single polar flagellum for movement.

The most distinctive feature of these bacteria is their predatory lifestyle. They are capable of invading the periplasmic space of other Gram-negative bacteria and replicating within it, eventually causing the host cell to lyse and release the progeny.

Ecology

Bdellovibrionaceae are found in a wide range of environments, including soil, freshwater, and marine habitats. They play a crucial role in controlling bacterial populations in these environments.

Medical relevance

Due to their ability to kill other bacteria, Bdellovibrionaceae have been studied for their potential use in controlling bacterial infections. They could serve as a novel form of antibiotic, particularly against multi-drug resistant strains.

See also

• Predatory bacteria
• Bacteriophage