xanthobacter agilis xanthobacter agilis xanthobacter agilis is a dinitrogen-fixing, non-pleomorphic hydrogen-oxidizing and motile bacteria from the family of xanthobacteraceae which has been isolated from a lake near neuchâtel in switzerland. xanthobacter agilis produces o-phthalyl amidase. xanthobacter agilis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: hyphomicrobiales family: xanthobacteraceae genus: xanthobacter species: x. agilis binomial name xanthobacter agilisjenni and aragno 1988 type strain aragno sa35, atcc 43847, dsm 3770, jenni sa35, lmg 16336, lmg 7994, ncaim b.01949, ncimb 12683, neu 2015, sa35, vkm b-2105