desulfurella propionica desulfurella propionica desulfurella propionica is a thermophilic sulfur-reducing eubacterium. it is gram-negative, rod-shaped, non-motile, with type strain n u-8t (=dsm 10410t). desulfurella propionica scientific classification domain: bacteria phylum: campylobacterota class: desulfurellia order: desulfurellales family: desulfurellaceae genus: desulfurella species: d. propionica binomial name desulfurella propionicamiroshnichenko 1998