sphingopyxis italica sphingopyxis italica sphingopyxis italica is a bacterium. it is gram-negative, aerobic, motile, rod-shaped and was isolated from volcanic rock in the roman catacombs of saint callixtus in rome. its type strain is sc13e-s71t ( = dsm 25229t = cect 8016t). sphingopyxis italica scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingopyxis species: s. italica binomial name sphingopyxis italicaalias-villegas et al. 2013