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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Deep-Earth Microbe from South Africa Appears in California

It is the only bacterium found audaxviatkr water samples obtained 2. They get everything they need from the process of radioactive decay. 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.

The hydrocarbons in that environment do not come from living organisms. The bacteria can then use the sulfate for dissimulatory sulfate reduction, returning the compound to desulforusis. Formate and CO may also be used as a carbon source.

Or it could have traveled via underwater rivers, although this would have had to happen before the continents split apart, according to the publication.

The source of the hydrogen needed for their respiration comes from the decomposition of water by radioactive decay of uraniumthoriumand potassium. But how did it get so far away?

Desulforudis audaxviator

Scientists also believe there is plenty of radioactive material on Europa to support this kind of life without having to posit a larger ecosystem. It proves that life, when given a foothold, can find a way to survive in even the harshest and most unlikely of places.


Peptococcaceae Sulphophiles Lithophiles Monotypic bacteria genera Desulforudi taxa. It has somehow evolved to do without the sun or oxygen.

Articles with ‘species’ microformats All articles with unsourced statements Articles with unsourced statements from March Taxonbars using multiple manual Wikidata items. Taken together, these characteristics mean that D. Just the fact that life can survive on nuclear energy is pretty incredible.

Deep-Earth Microbe from South Africa Appears in California

Learn how your comment data desulfroudis processed. 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 surface water.

At MP, where biodensity is low, carbon is fixed from inorganic sourcesā€¦. You must be logged in to post a comment.

Similar bacteria have been found in other environments and locations. It may also have acquired genes from a species of archaea by horizontal gene transfer. The hero, Professor Lidenbrock, finds a secret inscription in Latin that reads: Electrons from the hydrogen left over from the splitting of water are used by the cell to reduce sulfate.

They are motile, sporulating, sulfate reducing chemoautotrophsand are categorized as thermophiles and obligate anaerobes. One landmark study from 15 years ago estimated that subseafloor sediments contain 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.

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.

Recently, scientists have lowered their estimates of the number of microbes that they expect live deep underground. It was detected in bore holes 2, feet meters beneath the surface of California’s Death Valley. Nonetheless, a nitrogenase is present in the genomeā€¦ D. All three of these mines are located in the Witswatersrand basin, the same basin as the Mponeng gold mine.


Numerous biochemical pathways enable independent life : – AskNature

Studies found that it relies only on hydrogen and sulfide for food, derived from the breakdown of uranium and other radioactive elements. Views Read Edit View history. Its complete intolerance of oxygen suggests long-term isolation.

Organism Candidatus Desulforudis Species. Chemically assemble organic compounds. Previously, scientists have looked to organisms that live along hydrothermal vents as analogues to what we might find on Europa, which is an ocean world covered in a layer of ice that is also suspected of having hydrothermal vents. One place where we might find aliens that are similar to Desulforudis audaxviator is right here in our own solar system: Scientists suggest it could have made its way to the surface in the mine’s water, and hitched a ride around the world on currents of air.

If conditions become unfavorable for normal life, D. The dark shaft of the Mponeng mine in South Africa where microbes were found flourishing in rocks up to several miles desulforudix the Earth’s surface. The archaeal genes present in the D.