Ochrobactrum

Ochrobactrum is a genus of Gram-negative bacteria in the Brucellaceae. The genus has been described by Holmes in 1988 and Ochrobactrum anthropi was proposed as the type species of the genus. Further work led to the recognition of 18 other species: The Ochrobactrum strains are all Gram-negative, short rods, straight or slightly curved with one end flame-shaped. The cells are about 0.6-1.2 in length. They are not spore forming, strictly aerobic and not fermentative. The genomes of most Ochrobactrum species are complex with two independent circular chromosomes often associated with plasmids.