pseudoxanthobacter liyangensis pseudoxanthobacter liyangensis pseudoxanthobacter liyangensis is a gram-negative, rod-shaped, nitrogen fixing aerobic bacterium which has been isolated from soil in liyang in china. pseudoxanthobacter liyangensis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: pseudoxanthobacteraceae genus: pseudoxanthobacter species: p. liyangensis binomial name pseudoxanthobacter liyangensisliu et al. 2014 type strain cctcc ab 2013167, kacc 16601, ddt-3