cyclobacterium xiamenense cyclobacterium xiamenense cyclobacterium xiamenense is a horseshoe-shaped, gram-negative and non-motile bacterium from the genus of cyclobacterium which has been isolated from the alga chlorella autotrophica from the coastal sea of xiamen in china. cyclobacterium xiamenense scientific classification domain: bacteria phylum: bacteroidota class: cytophagia order: cytophagales family: cyclobacteriaceae genus: cyclobacterium species: c. xiamenense binomial name cyclobacterium xiamenensechen et al. 2014 type strain cgmcc 1.12432, kd51, kctc 32253 synonyms cyclobacterium xiamenensis