winogradskyella poriferorum winogradskyella poriferorum winogradskyella poriferorum is a gram-negative and rod-shaped bacterium from the genus of winogradskyella which has been isolated from the surface of the sponge lissodendoryx isodictyalis from the bahamas. winogradskyella poriferorum scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: winogradskyella species: w. poriferorum binomial name winogradskyella poriferorumlau et al. 2005 type strain ust030701-295 synonyms winogradskyella poriferia