dechloromonas hortensis dechloromonas hortensis dechloromonas hortensis is a gram negative, facultatively anaerobic, (per)chlorate-reducing, motile bacterium from the genus of dechloromonas. dechloromonas hortensis scientific classification domain: bacteria phylum: pseudomonadota class: betaproteobacteria order: rhodocyclales family: rhodocyclaceae genus: dechloromonas species: d. hortensis binomial name dechloromonas hortensiswolterink et al. 2005 type strain atcc baa-776, dsm 15637, ma-1