arthrobacter methylotrophus arthrobacter methylotrophus arthrobacter methylotrophus is a bacterium species from the genus arthrobacter which has been isolated from soil around the roots of the plant tagetes minuta. arthrobacter methylotrophus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: micrococcaceae genus: arthrobacter species: a. methylotrophus binomial name arthrobacter methylotrophusborodina et al. 2002 type strain atcc baa-111tgadsm 14008jcm 13519