arthrobacter roseus arthrobacter roseus arthrobacter roseus is a species of red-pigmented psychrophilic bacteria first isolated from a cyanobacterial mat. arthrobacter roseus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: micrococcaceae genus: arthrobacter species: a. roseus binomial name arthrobacter roseusreddy et al. 2002 type strain cip 107726cmc 90orcms90cms 90orcms 90rdsm 14508jcm 11881mtcc 3712ncimb 14039