Quatrionicoccus (also known as its synonym Quadricoccus) is a genus of gram-negative, oxidase-negative, catalase-positive, aerobic, non-spore-forming, non-motile bacteria from the family of Rhodocyclaceae which belongs to the class of Betaproteobacteria.
[2][3] So far there is only on species of this genus known (Quatrionicoccus australiensis).
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