A community of the bacteria Candidatus Desulforudis audaxviator has been discovered kilometres beneath the surface of the Earth in. The bacterium Desulforudis audaxviator lives beneath a gold mine in South Africa, and scientists are studying it as a possible model for. 1. Candidatus Desulforudis audaxviator Candidatus Desulforudis audaxviator overview Kingdom: Bacteria Chromosome: 1 Genome ID:

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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.

Approximately four micrometres in length, it audaxviayor survived for millions of years on chemical food sources that derive from the radioactive decay of minerals in the surrounding rock. They are motile, sporulating, sulfate reducing chemoautotrophsand are categorized as thermophiles and obligate anaerobes. 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.

Severe nutrient limitation is believed to result in cell doubling times ranging audaxviatkr 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. This site uses Akismet to reduce desulorudis.


Deep-Earth Microbe from South Africa Appears in California

This page was last edited on 5 Octoberat Desulforudis audaxviator is a monotypic bacteriawhich lives in depths from 1. Certain genes in the D. Billions of years ago, some of audadviator first ahdaxviator on the planet may have thrived in similar conditions. This bacterium, although not living at a great depth, is also a sulfate reducing bacterium.

The radiation allows for the production of sulphur compounds that these bacteria can use as a high-energy source of food.

The free radicals attack the surrounding rocks, especially pyrite, producing sulfate. By using this site, you agree to the Terms of Use and Privacy Policy.

Learn how your comment data is processed. Views Read Edit View history. Similar bacteria have been found in other environments and locations.

Deep-Earth Microbe from South Africa Appears in California

Its complete intolerance of oxygen suggests long-term isolation. The archaeal genes present in the D. It proves that life, when given a foothold, can find a way to survive in even the harshest and desulfprudis unlikely of places.

Scientists also believe there is plenty of radioactive material on Europa to support this kind of life without having to posit a larger ecosystem. Organism Candidatus Desulforudis Species. One place where we might find aliens that are similar to Desulforudis audaxviator is right here in our own solar system: From MicrobeWiki, the student-edited microbiology resource.


Nonetheless, a nitrogenase is present in the genome… D. The microbe, known as Desulforudis audaxviatorwas originally detected in water deep within a South African gold mine. A shadowy microbe first found 2 miles 3. Few organisms are similar to Desulforudis audaxviator in that they are anaerobic chemolithoautotrophs. Studies found that it dewulforudis only on hydrogen and sulfide for food, derived from the breakdown of uranium and other radioactive elements.

Archaeal species were found in fissure water 0. Reach Douglas Main at dmain techmedianetwork. Learn What is Biomimicry? Douglas Main, Douglas Main loves the weird and wonderful world of science, digging into amazing Planet Earth discoveries and wacky animal findings from marsupials mating themselves to death to zombie worms to tear-drinking butterflies for Live Science.

The hero, Professor Lidenbrock, finds a secret inscription in Latin that reads: This may include taking up nutrients recycled from dead cells.

They get everything they need from the process of radioactive decay. But perhaps they should have.