Oligoflexia

Bdellovibrio is a genus of gram-negative, obligate aerobic bacteria. One of the most notable characteristics of this genus is that members can prey upon other gram-negative bacteria and feed on the biopolymers, e.g. proteins and nucleic acids, of their hosts. They have two lifestyles: a host-dependent, highly mobile phase, the "attack phase", in which they form "bdelloplasts" in their host bacteria; and a slow-growing, irregularly shaped, host-independent form.

The Oligoflexia are a class of the phylum Bdellovibrionota. All species of this group are all Gram-negative.