demequina activiva demequina activiva demequina activiva is a gram-positive, facultatively anaerobic, rod-shaped and non-spore-forming bacterium from the genus demequina which has been isolated from tidal flat sediments from the south sea in korea. demequina activiva scientific classification domain: bacteria phylum: actinomycetota class: actinomycetia order: micrococcales family: demequinaceae genus: demequina species: d. activiva binomial name demequina activivapark et al. 2015 type strain kctc 29674nbrc 110675bs-12m