pontimicrobium pontimicrobium pontimicrobium is a gram-negative, strictly aerobic, non-spore-forming, rod-shaped and non-motile genus of bacteria from the family of flavobacteriaceae with one known species (pontimicrobium aquaticum). pontimicrobium aquaticum has been isolated from seawater. pontimicrobium scientific classification domain: bacteria phylum: bacteroidota class: flavobacteria order: flavobacteriales family: flavobacteriaceae genus: pontimicrobiumjanthra et al. 2020 type species pontimicrobium aquaticum species p. aquaticum