hydrogenophaga laconesensis hydrogenophaga laconesensis hydrogenophaga laconesensis is a gram-negative, non-spore-forming and motile bacterium from the genus of hydrogenophaga which has been isolated from well water. hydrogenophaga laconesensis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: burkholderiales family: comamonadaceae genus: hydrogenophaga species: h. laconesensis binomial name hydrogenophaga laconesensismantri et al. 2017 type strain ktcc 42478, lmg 28681, strain hwb-10