Novina Putri Bestari, CNBC Indonesia
Technology
Thursday 01/11/2024 06:50 WIB
Photo: View of Earth from space (Twitter/@Inspiration4)
Jakarta, CNBC Indonesia – A Belgian study managed to discover how photosynthesis evolved. The findings come from cyanobacterial fossils that are more than a billion years old.
The research was conducted by Emmanuelle Javaux of the University of Liège and colleagues. They analyzed rock fossils in three locations.
The first site is the 1.75 billion year old McDermott Formation in Australia. The other two are the billionaire Grassy Bay in Canada and the Bllc6 formation in the Republic of Congo.
The next job is to extract cyanobacterial fossils. Obtains energy from photosynthesis, cited by New scientistWednesday (10/1/2024).
The size of the bacteria is quite small, less than a millimeter. The researchers then sliced it another 60-70 nanometers and analyzed its internal structure.
“They are very small, less than a millimeter. So you can’t see them with the naked eye,” Javaux explained, quoted by New Scientist, Wednesday (8/1/2024).
From his findings, cyanobacteria in Australia and Canada contain thylakoids. This content is bound to the membrane where photosynthesis occurs.
Based on its age, this latest find is the oldest. Previously discovered thylakoids were 550 million years old.
“This is the oldest thylakoid fossil that we know of now. So we go back 1.2 billion years in the fossil record,” he explained.
With these results it can be concluded that photosynthesis evolved starting 1.75 billion years ago. But it could also take much longer.
This is because, based on other evidence, cyanobacterial fossils are older. That is, reach 2 billion years.
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