gramella oceani gramella oceani gramella oceani is a gram-negative, strictly aerobic, non-endospore-forming and rod-shaped bacterium from the genus of gramella which has been isolated from marine sediments from the coast from kending in taiwan. gramella oceani produces zeaxanthin. gramella oceani scientific classification domain: bacteria phylum: bacteroidota class: flavobacteriia order: flavobacteriales family: flavobacteriaceae genus: gramella species: g. oceani binomial name gramella oceanihameed et al. 2014 type strain cc-amsz-t