marmoricola korecus marmoricola korecus marmoricola korecus is a gram-positive, aerobic and non-motile bacterium from the genus marmoricola which has been isolated from volcanic ash from jeju, korea. marmoricola korecus scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: propionibacteriales family: nocardioidaceae genus: marmoricola species: m. korecus binomial name marmoricola korecuslee et al. 2011 type strain dsm 22128kctc 19596sco-a36