chryseobacterium piperi chryseobacterium piperi chryseobacterium piperi is a gram-negative, rod-shaped and non-motile bacteria from the genus of chryseobacterium which has been isolated from the loyalsock creek in montoursville in the united states. chryseobacterium piperi scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: weeksellaceae genus: chryseobacterium species: c. piperi binomial name chryseobacterium piperistrahan et al. 2011 type strain atcc baa-1782, ccug 57707, ctm, dsm 22249, jcm 15960, kctc 23267