desulfovibrio capillatus desulfovibrio capillatus desulfovibrio capillatus is a gram-negative and sulfate-reducing bacterium from the genus of desulfovibrio which has been isolated from an oil field separator in the gulf of mexico. desulfovibrio capillatus scientific classification domain: bacteria phylum: thermodesulfobacteriota class: desulfovibrionia order: desulfovibrionales family: desulfovibrionaceae genus: desulfovibrio species: d. capillatus binomial name desulfovibrio capillatusmiranda-tello et al. 2013 type strain cip 107483, dsm 14982, met 2