Bacteria that are supposed to perform photosynthesis were discovered on the ground where the sun's light did not reach and scientists were amazed

Microorganisms that were thought to produce energy by photosynthesis were discovered deep in the ground where the light of the sun does not reach. To the discovery of "impossible" to overturn the theory, scientists have come up with surprising voices.

Viable cyanobacteria in the deep continental subsurface | PNAS
http://www.pnas.org/content/early/2018/09/26/1808176115

A Common Bacterium Has Been Discovered Thriving in a Place Where It Should not Exist
https://www.sciencealert.com/life-discovered-fourting-place-so-dark-nobody-knew-possible-cyanobacteria-photosynthesis

Microbes Were Just Found in 'Dark Biosphere' Where They Should not Exist
https://www.livescience.com/63736-bacteria-dark-biosphere-underground.html

These light-loving bacteria may survive surprisingly deep underground | Science News
https://www.sciencenews.org/article/cyanobacteria-may-survive-surprisingly-deep-underground

Cyanobacteria ( Cyanobacteria ) is one of the oldest creatures, and has been confirmed to exist on the earth for billions of years. Cyanobacteria used the power of the sun to grow carbon dioxide as food, release oxygen, and played a major role of making the earth an oxygen-rich planet.

As of 2018, cyanobacteria have been found in various places from the desert to the ocean, but all the places discovered so far were "the place where the sun shines". Many scientists are surprised at the report that cyanobacteria were discovered in the ground out of reach of the sun's light.

This is a sample taken from the ground.

The research team reported that a rich ecosystem exists in the basement of the area called "Iberian pyrite zone" in the Iberian Peninsula in the southwestern part of Spain. In the second survey, the place where we did not enter foot so far was investigated, and cyanobacteria, which the researcher had not anticipated at the basement of 613 m, was discovered. Among the samples brought back to the researcher, cyanobacteria are said to have been the most abundant organisms. In many cases, fanged crustacean which does not have eyes at such ground and ...

Blind Cavefish and others are inhabited.

When the researchers looked at the samples, the cyanobacteria inhabiting the ground turned out to be not biologically much different from the cyanobacteria inhabiting the earth. However, the process of generating energy is different, and the underlying cyanobacteria do not have the structure to perform photosynthesis. As most of the underlying cyanobacteria are concentrated in places where hydrogen is abundant, researchers are seeing that they are getting energy by transporting hydrogen electrons to various places in the ground.

As a result of genetic analysis, it was shown that the ancestors of the bottom cyanobacteria were present deep inside the cavern where sunlight hardly reached. Researchers said that the ecological status of cyanobacteria, which had not been known until now, opens the way for their origin and evolutionary research, "said researchers saying," In stars other than Earth such as Mars Why is it possible for an organism to exist? "And helps understanding questions.