opitutus terrae opitutus terrae opitutus terrae is an obligately anaerobic (cannot grow in the presence of oxygen) bacterium first isolated from rice paddy soil, hence its epithet. it is coccus-shaped and is motile by means of a flagellum. its type strain is pb90-1t (= dsm 11246t). its genome has been sequenced. opitutus terrae scientific classification domain: bacteria phylum: verrucomicrobiota class: opitutae order: opitutales family: opitutaceae genus: opitutus species: o. terrae binomial name opitutus terraechin et al. 2001