aurantimonas manganoxydans aurantimonas manganoxydans aurantimonas manganoxydans is a gram-negative, catalase- and oxidase-positive, non-spore-forming, motile bacteria from the genus of aurantimonas which has the ability to oxidize manganese. aurantimonas manganoxydans was isolated from coastal water from oregon in the united states. aurantimonas manganoxydans scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: aurantimonadaceae genus: aurantimonas species: a. manganoxydans binomial name aurantimonas manganoxydansanderson et al. 2011 type strain atcc baa-1229, dsm 21871, si85-9a1