Burn for thousands of years, and the scholars’ knowledge of algae, which is 7000 years old

Scientists have revived the 7000 -year -old plant plankton, making it one of the oldest living organisms at all. But I know what you are thinking: How long can we restore life from the dead?

Plant plankton – optical algae for optical representation – did not die – but in the deep “sleep mode” known as stillness. As is detailed in a Ticket It was published in early January in the Journal of ISME, and an international team of scientists has succeeded in reviving sleeping algae – which is thousands of years old – from the bottom of the Baltic Sea, which brings them back to full feasibility. Their work, literally, made life a snapshot of the ancient Baltic marine environment.

Several forms of life enter into a sleeping condition with a decrease in metaphoric activity to wait for periods of difficult environmental conditions. When plant plankton becomes asleep, they drown at the bottom of their marine habitats where they become a layer in sedimentary deposits.

Sarah Bolios, a biologist and vertebrae expert from the Leibniz Institute for Marine Research in the Baltic Sea, said in A. statement By the institute.

In 2021, Bollyos and her colleagues collected sleeping botanical plankton from sediment samples that extracted 787 feet (240 meters) below the roof of the Baltic Sea. They have succeeded in collecting and reviving living creatures from nine samples, some of which are due to nearly 7,000 years.

Marinoi skeleton– The types of plant plankton were common in the Baltic Sea – the only samples that researchers could revive from each sample, with the return of the oldest about 6871 years. The team claims Marinoi skeleton It is one of the oldest organisms that have been reviving a state of stillness, and the oldest living organism of water deposits.

Then the team analyzed the old plant plankton and compared them to modern samples. Their results revealed that the revival Marinoi skeleton The samples have completely built their biological activities as well as their modern counterparts, despite being deprived of light and oxygen for thousands of years.

“It is striking that the algae that was revived not only survive”, “but apparently did not lose any of its” fitness “, that is, its ability to perform its biological performance: it grows, divides and spaced the space of photosynthesis like their modern grandchildren,” Bollyos pointed out. Moreover, the team documented Marinoi skeletonGenetic features, and revealed that algae from different time periods formed genetic groups within species. This indicates that the Baltic Sea Marinoi skeleton It has evolved genetically over time.

In addition to the same organisms, other features of the sediments can also reveal the old levels of oxygen, salt and temperatures. Bollyos added: “By combining all this information, we aim to a better understanding of how and why the plant plankton in the Baltic Sea is genetically and functionally for environmental changes.”

Its team’s work shows that “it is now possible to perform” time jumping experiments “at different stages of the development of the Baltic Sea in the laboratory,” Bollyos continued. “Our study also shows that we can track genetic changes directly over many thousands of years – by analyzing living cells instead of just fossils or effects of DNA.”

It looks like it sleeping beauty He had nothing Marinoi skeleton.