pseudopontixanthobacter sediminis pseudopontixanthobacter sediminis pseudopontixanthobacter sediminis is a gram-negative, non-spore-forming and non-motile bacterium from the genus of pseudopontixanthobacter which has been isolated from lagoon sediments from the coast of korea. pseudopontixanthobacter sediminis scientific classification domain: bacteria phylum: pseudomonadota class: alphaproteobacteria order: sphingomonadales family: erythrobacteraceae genus: pseudopontixanthobacter species: p. sediminis binomial name pseudopontixanthobacter sediminis(kim et al. 2016) liu et al. 2021 type strain kctc 42453, nbrc 110917, cau1172 synonyms altererythrobacter sediminis kim et al. 2016