Hyphomicrobium

Hyphomicrobium
Scientific classification
Domain: Bacteria
Kingdom: Pseudomonadati
Phylum: Pseudomonadota
Class: Alphaproteobacteria
Order: Hyphomicrobiales
Family: Hyphomicrobiaceae
Genus: Hyphomicrobium
Stutzer and Hartleb 1899
Type species
Hyphomicrobium vulgare
Species

Hyphomicrobium is a genus of Gram-negative, non-spore-forming, rod-shaped bacteria from the family of Hyphomicrobiaceae. It has a large polar or sub-polar filiform prostheca very similar to that of Caulobacter. In addition to having a nutritional function, the prostheca also plays a role in the initiation of DNA replication.

Reproduction in Hyphomicrobium begins when its hyphal filament (prostheca) grows from one end of the cell (this happens when the cell no longer has a flagellum) and the bud grows from the tip of the prostheca that eventually differentiates into a new swarmer cell.