robertkochia sediminum robertkochia sediminum robertkochia sediminum is a gram-negative, strictly aerobic and rod-shaped bacterium from the genus of robertkochia which has been isolated from coastal sediments from the xiaoshi island from china. robertkochia sediminum scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: robertkochia species: r. sediminum binomial name robertkochia sediminumma et al. 2022 type strain 1368