acuticoccus acuticoccus actibacterium is a gram-negative and aerobic genus of bacteria from the order of hyphomicrobiales with one known species (acuticoccus yangtzensis). acuticoccus yangtzensis has been isolated from water from the yangtze in china. acuticoccus scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: amorphaceae genus: acuticoccushou et al. 2017 type species acuticoccus yangtzensis species a. yangtzensis