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An exceptional discovery in the abyss that calls into question everything we thought we knew about energy production by living beings

ByAlicia Green

Oct 18, 2024 #science
An exceptional discovery in the abyss that calls into question everything we thought we knew about energy production by living beingsAn exceptional discovery in the abyss that calls into question everything we thought we knew about energy production by living beings

Ancient microbes’ hydrogen use shakes up science: China’s breakthrough in energy production.

A recent discovery by researchers at the Monash Biomedical Discovery Institute, in collaboration with international partners, has revealed that ancient microorganisms, known as archaea, have been using hydrogen to produce energy for over a billion years. This finding not only sheds light on the origins of life on Earth but also opens doors to revolutionary industrial applications for a greener economy.

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Unveiling the energy secrets of archaea

Archaea are single-celled organisms that thrive in extreme environments like hot springs and deep-sea vents. The focus of this study is their ability to use hydrogen as an energy source, which centers around enzymes known as hydrogenases. These enzymes enable archaea to convert hydrogen into a viable source of energy, highlighting a crucial piece of the puzzle in understanding early life forms on Earth.

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Implications for humanity

Dr. Bob Leung, a researcher at the Monash Biomedical Discovery Institute, suggests that this discovery about ancient life forms could also illuminate aspects of our own existence. Archaea utilize [FeFe]-type hydrogenases, previously thought to be exclusive to eukaryotes and bacteria. This revelation challenges current understanding of evolutionary processes and suggests that eukaryotes, including humans, may have evolved from an ancient fusion between an archaeal cell and a bacterial cell, facilitated by hydrogen gas exchanges.

Archaea: pioneers of hydrogen Use

Long before humans started exploring hydrogen as an ecological alternative energy source, archaea had already mastered its use. This extensive history of hydrogen utilization offers inspiring potential for modern biotechnology. Researchers are now looking to these microorganisms to develop industrial methods for hydrogen production.

Diversity and complexity of Archaea’s Hydrogenases

The hydrogenases found in archaea exhibit remarkable diversity and complexity, with some being among the smallest and most intricate ever discovered. This variability provides exciting opportunities for developing more efficient and resilient biological catalysts for the industry.

Toward a green economy: potential applications

Understanding how archaea utilize hydrogen could dramatically transform our industrial approach. Currently, the industry relies on costly chemical catalysts to harness hydrogen. However, the study suggests that biological catalysts, like those found in archaea, could be used to enhance this process in a more effective and sustainable way.

The significance of this discovery for science and industry

This research not only opens doors to understanding our own biological evolution but also to advancing toward greener, more efficient energy production methods. The potential applications of these findings in sectors such as renewable energy and industrial biotechnology are immense, promising a future where ancient science helps solve modern problems.

What Europe and Japan have just achieved in the field of nuclear fusion is decisive for the future of energy

This article explores a major scientific discovery revealing that archaea, ancient microscopic organisms, have been using hydrogen to produce energy for more than a billion years. This research not only sheds light on evolutionary mechanisms of life on Earth but also suggests potential applications for transforming industries by adopting more ecological and efficient methods inspired by nature.

Source: CELL