novosphingobium fluoreni novosphingobium fluoreni novosphingobium fluoreni is a gram-negative, fluorene-degrading, rod-shaped and non-spore-forming bacterium from the genus novosphingobium which has been isolated rice seeds from jiansanjiang in china. novosphingobium fluoreni scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: erythrobacteraceae genus: novosphingobium species: n. fluoreni binomial name novosphingobium fluorenigao et al. 2015 type strain accc19180, dsm 27568, hlj-rs18