arthrobacter subterraneus arthrobacter subterraneus arthrobacter subterraneus is a species of bacteria. it is pale yellow-pigmented, gram-positive, short rod- or coccus-shaped (diameter between 0.8–1 µm). it is non-motile and non-spore-forming. arthrobacter subterraneus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: micrococcaceae genus: arthrobacter species: a. subterraneus binomial name arthrobacter subterraneuschang et al. 2008 type strain ch7tkctc 9997tdsm 17585t