aquabacterium limnoticum aquabacterium limnoticum aquabacterium limnoticum is a gram-negative, facultatively anaerobic, short-rod-shaped, non-spore-forming and non-motile bacterium of the genus aquabacterium which has been isolated from a freshwater spring in taiwan. aquabacterium limnoticum scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: aquabacterium species: a. limnoticum binomial name aquabacterium limnoticumchen et al. 2012 type strain abp-4, bcrc 80167, kctc 23306