The rod-shaped bacterium, Candidatus Desulforudis audaxviator, lives independently of any other organism in a part of the Mponeng gold. Genus: Candidatus Desulforudis. Species: Candidatus Desulforudis audaxviator. The name “audaxviator” was inspired by a quote from the. Candidatus Desulforudis audaxviator MPC. JGI project id: Culture collection: Year of funding: GTL. Public website date: 3/10/ Assembly.

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They are motile, sporulating, sulfate reducing chemoautotrophsand are categorized as thermophiles and obligate anaerobes.

Certain genes in the D. The archaeal genes present in the D. All three of these mines are located in the Witswatersrand basin, the same basin as the Mponeng gold mine.

Archaeal species were found in fissure water 0. Similar bacteria have been found in other environments and locations.


This bacterium, although not living at a great depth, is also a sulfate reducing bacterium. Audaxviator is a sulfate reducing chemoautotroph, capable of fixing nitrogen and carbon.

desulforudis audaxviator – Genome Result

The hydrogen peroxide reacts with the environmental sulfide to form sulfate. The bacteria can then use the sulfate for dissimulatory sulfate reduction, returning the compound to sulfide. Electrons from the hydrogen left over from the splitting of water are used by the cell to reduce sulfate. Ammonia is thought to be at a high enough concentration to provide a sufficient source of nitrogen.

The bacterium has transporters for both sugars and amino acids, which can be used a carbon source if they are available in the environment.

Desulforudis audaxviator

Formate and CO may also be used as a carbon source. The bacterium performs chemotaxis along chemical gradients, and takes up nutrients it needs.

This may include taking up nutrients recycled from dead cells.

From MicrobeWiki, the student-edited microbiology resource. This student page has not been curated.


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