desulfurella amilsii desulfurella amilsii desulfurella amilsii is a gram-negative, non-spore-forming, obligately anaerobic sulfur-reducing, acidotolerant, moderately thermophilic and motile bacterium from the genus of desulfurella which has been isolated from river sediments from the tinto river in spain. desulfurella amilsii phenotypic characterization is also able to utilize thiosulfate as an electron acceptor and ferment pyruvate. in addition, it uses formate as an electron donor and can have a ph as low as 3. desulfurella amilsii scientific classification domain: bacteria phylum: campylobacterota class: desulfurellia order: desulfurellales family: desulfurellaceae genus: desulfurella species: d. amilsii binomial name desulfurella amilsiiflorentino et al. 2016 type strain dsm 29984, jcm 30680, strain tr1