chryseobacterium formosense chryseobacterium formosense chryseobacterium formosense is a bacterium. it is gram-negative, rod-shaped, non-spore forming and yellow-pigmented. its type strain is cc-h3-2t (ccug 49271t, cip 108367t). it was first isolated from the rhizosphere of a specimen of lactuca sativa. chryseobacterium formosense scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: weeksellaceae genus: chryseobacterium species: c. formosense binomial name chryseobacterium formosenseyoung et al. 2004