rhizobium viscosum rhizobium viscosum rhizobium viscosum is a bacterium species from the genus rhizobium which has been isolated from soil from the city airport in guatemala. rhizobium viscosum produces exopolysaccharide. rhizobium viscosum scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: rhizobiaceae genus: rhizobium species: r. viscosum binomial name rhizobium viscosum(gasdorf et al. 1965) flores-félix et al. 2017 type strain atcc 19584bcrc 14858ccrc 14858cdbb 20cect 908cip 82.105cip 82.105tdsm 7307dsmz 7307iam 14871jcm 11566kctc 3388l-23lmg 16473lmg 17310ncdo 2326ncfb 2326ncimb 9729nrrl b-1973pcm 2469 synonyms arthrobacter viscosus gasdorf et al. 1965 (approved lists 1980)