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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The hydrogen peroxide reacts with the environmental sulfide to form sulfate. 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.

Comments Cancel reply You must be logged in to post a comment. 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 bacterium performs chemotaxis along chemical gradients, and takes up nutrients it needs.

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

The bacteria can then use the sulfate for dissimulatory sulfate reduction, returning the compound to sulfide. The bacterium has transporters for both sugars and amino acids, which can be used a carbon source if they are available in the environment. Watch Interactive Report Edit Summary. This page was last edited on 5 Octoberat 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.


At MP, where biodensity is low, carbon is fixed from inorganic sources…. Billions ahdaxviator years ago, some of the first bacteria on the planet may have thrived in similar conditions. Learn What is Biomimicry? The hero, Professor Lidenbrock, finds a secret inscription in Latin that reads: Personal tools Log in. Similar bacteria have been found in other environments and locations.

Its complete intolerance of oxygen suggests long-term isolation. Electrons from the hydrogen left over from the splitting of water are used by the cell to reduce sulfate. The genome contains an unusual transposon and possesses many sites of insertion.

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

Desulforudis audaxviator

Retrieved from ” https: Formate and CO may also be used as a carbon source. Chemically assemble organic compounds. The radiation allows for the production of sulphur compounds that these bacteria can use as a high-energy source of food. From Wikipedia, the free encyclopedia.

Group Directory Member Directory. Taken together, these characteristics mean that D.

The archaeal genes present in the D. The hydrocarbons in that environment do not come from living organisms. This makes it one of the few known organisms that does not depend on sunlight for nourishment, and the only species known to be alone in its ecosystem.

By using this site, you agree to the Terms of Use and Privacy Policy. Retrieved from ” https: The newly discovered microbes could shed light into the origins of life on Earth.


If conditions become unfavorable for normal life, D.

Desulforudis audaxviator – microbewiki

Audaxviator is a sulfate reducing chemoautotroph, capable of fixing nitrogen and carbon. In other projects Wikimedia Commons. From MicrobeWiki, the student-edited microbiology resource.

Few organisms are similar to Desulforudis audaxviator in that they are anaerobic chemolithoautotrophs. This site uses Akismet to reduce spam. 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 greatest potential among candidate electron donors, and sulfate SO 4 2— reduction as the dominant electron-accepting process.

Nonetheless, a nitrogenase is present in the genome… D. A colony of Desulforudis audaxviator, discovered in a gold mine near Johannesburg, South Africa.

desulforudis audaxviator – Genome Result

This may include taking up nutrients recycled from dead cells. This student page has not been curated. Articles with ‘species’ microformats All articles with unsourced statements Articles with unsourced statements from March Taxonbars using multiple manual Wikidata items. It is the only bacterium found in water samples obtained 2. This bacterium, although not living at a great depth, is also a sulfate reducing bacterium.

Desulforudis audaxviator Desulforudis audaxviator Scientific classification Kingdom: It may also have acquired genes from a species of archaea by horizontal gene transfer.