sphingopyxis fribergensis sphingopyxis fribergensis sphingopyxis fribergensis is a gram-negative and aerobic bacterium from the genus of sphingopyxis which has been isolated from soil from a meadow from freiberg in germany. sphingopyxis fribergensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: sphingomonadaceae genus: sphingopyxis species: s. fribergensis binomial name sphingopyxis fribergensisoelschlagel et al. 2015 type strain dsm 28731, lmg 28478, strain kp5.2