gramella lutea gramella lutea gramella lutea is a gram-negative, aerobic, rod-shaped and non-motile bacterium from the genus of gramella which has been isolated from marine sediments from hwangwooji from the jeju island. gramella lutea scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: gramella species: g. lutea binomial name gramella luteayoon et al. 2015 type strain yj019