arthrobacter pigmenti arthrobacter pigmenti arthrobacter pigmenti is a bacterium species from the genus of arthrobacter which has been isolated from a biofilm from a mural painting in herberstein, austria. arthrobacter pigmenti scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: micrococcaceae genus: arthrobacter species: a. pigmenti binomial name arthrobacter pigmentiheyrman et al. 2005 type strain dsm 16403jcm 21771lmg 22284