Desulfotomaculum nigrificans

De·sul·fo·to·mac·u·lum ni·gri·'fi·cans

a species found in spoiled foods showing "sulfur stinker" spoilage as a result of hydrogen sulfide production. It is not pathogenic.
References in periodicals archive ?
This type of spoilage is associated with anaerobic sulphide-reducing spore forming bacteria such as the themophilic Desulfotomaculum nigrificans and also the mesophilic Clostridium sporogenes.