sphingomonas guangdongensis sphingomonas guangdongensis sphingomonas guangdongensis is a gram-negative bacteria from the genus of sphingomonas which has been isolated from lead-zinc ore in meizhou in the guangdong province in china. sphingomonas glacialis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingomonas binomial name sphingomonas glacialisfeng et al. 2014 type strain 9nm-8, cgmcc 1.12672, dsm 27570, gimcc 1.653