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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In other words, they are able to use inorganic sources of energy instead of consuming organic molecules as food or using sunlightfix their own carbon rather than rely on plants to convert carbon dioxide to organic compoundsand use chemicals other than oxygen for respiration.

The physiology that enables it to live in these extreme conditions is a tribute to its unusually large genome, consisting of genes instead canddidatus the of its peers.

Info – Candidatus Desulforudis audaxviator MPC

This site uses Akismet to reduce spam. The newly discovered microbes could shed light into the origins of life on Earth. Nonetheless, a nitrogenase is present in the genome… D. Ammonia is thought to be at a high enough concentration to provide a sufficient source of nitrogen.

Desulforudis audaxviator

The genome contains desulforueis unusual transposon and possesses many sites of insertion. A colony of Desulforudis audaxviator, discovered in a gold mine near Johannesburg, South Africa. The source of the hydrogen needed for their respiration comes from the decomposition of water by radioactive decay of uraniumthoriumand potassium.

Personal tools Log in. Organism Candidatus Desulforudis Species. Formate and CO may also be used as a carbon source. Retrieved from ” https: By using this site, you agree to the Terms of Use and Privacy Policy. Archaeal species were found in fissure water 0. It is the only bacterium found in water samples obtained 2. Learn What is Biomimicry? From MicrobeWiki, the student-edited microbiology resource. Similar bacteria have been found in other environments and locations.


Candidatux is a sulfate reducing chemoautotroph, capable of fixing nitrogen and carbon. The radiation allows for the production of sulphur compounds that these bacteria can use as a high-energy source of food. In other projects Wikimedia Commons. The bacterium has transporters for both sugars and amino acids, which can be used a carbon source if they are available in the environment. They have been isolated from Earth’s surface for several million years because analyses of the water that they live in showed that it is very old and has not been diluted by audaxiator water.

If conditions become unfavorable for normal life, D. Severe nutrient limitation is believed to result in cell doubling times ranging from s to s of years…this organism appeared to possess all of the metabolic capabilities necessary for an independent life-style…radiolytically generated chemical species as providing the energy and nutrients to the system, with formate and H 2 as possessing the auudaxviator potential audzxviator candidate electron donors, and sulfate SO 4 2— reduction as the dominant electron-accepting process.

This student page has not been curated. Peptococcaceae Sulphophiles Lithophiles Monotypic bacteria genera Candidatus taxa. The hydrocarbons in that environment do not come from living organisms. All three of these mines are located in the Witswatersrand basin, the same basin as the Mponeng gold mine.

The archaeal genes present in the D. At MP, where biodensity is low, carbon is fixed from inorganic sources….

Watch Interactive Report Edit Summary. The hero, Professor Lidenbrock, finds a secret inscription in Latin that reads: Approximately four micrometres in length, it has survived for millions of years on chemical food sources that derive from the radioactive decay of minerals in the surrounding rock.

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Desulforudis audaxviator is a monotypic bacteriawhich lives in depths from 1. This bacterium, although not living at a great depth, is also a sulfate reducing bacterium. Certain genes in the D. Retrieved from ” https: This page was last edited on 5 Octoberat Descende, audax viator, et terrestre centrum attinges Descend, bold traveller, and you will attain the center of the Earth.

From Wikipedia, the free encyclopedia. Views Read Edit View history. This candidahus include taking up nutrients recycled from dead cells. Its complete intolerance of oxygen suggests long-term isolation. The bacterium performs chemotaxis along chemical gradients, and takes up nutrients it needs. Taken together, these characteristics mean that D. The bacteria can audasviator use the sulfate for dissimulatory sulfate reduction, returning the compound to sulfide.

Entry of CO 2 substrate into the cell may be accomplished by its anionic species through a putative carbonate adenosine triphosphate ATP —binding cassette transporter…Formate and CO may serve as alternate, more direct, carbon sources in other fractures when sufficiently abundant.

Desulforudis – Wikipedia

Electrons from the hydrogen left over from the splitting of water are used by the cell to reduce sulfate. It may also have acquired genes from a species of archaea by horizontal gene transfer.

Desulforudis audaxviator Desulforudis audaxviator Scientific classification Kingdom: Learn how your comment data is processed. Comments Cancel reply You must be logged in to post a comment. Csndidatus are motile, sporulating, sulfate reducing chemoautotrophsand are categorized as thermophiles and obligate anaerobes.