Desulfonauticus submarinus is one of the most novel organisms at the deep sea vent and one of the newest to be found. It has been given precedence in terms of its possible significance in ecological terms, mainly because of its symbiosis with the deep sea worms Alvinella and Riftia. This bacterium also uses sulfur-containing compounds to change them into energy. The bacterium known as a sulfur-reducer because it decreases the oxidation state of the element of sulfur within each compound. Using mostly sulfates, it transforms these compounds into sulfites, sulfides, thiosulfates and even elemental sulfur, all which have lower oxidation states, and therefore producing higher numbers of electrons that are to be used by organisms such as Alvinella (Pompeii worm) or Riftia (giant tube worm) as an energy source.