winogradskyella sediminis winogradskyella sediminis winogradskyella sediminis is a gram-negative and rod-shaped bacterium from the genus of winogradskyella which has been isolated from sediments from the yellow sea. winogradskyella sediminis scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: winogradskyella species: w. sediminis binomial name winogradskyella sediminiszhang et al. 2016 type strain s5-23-3