"Thiomargarita magnifica" the largest bacterium in the world discovered in Guadeloupe - Martinique la 1ère

“Thiomargarita magnifica” the largest bacterium in the world discovered in Guadeloupe – Martinique la 1ère

The scientific community is following the evolution of a mega-bacteria, 5,000 times larger than its peers and with a much more complex structure, discovered in Guadeloupe. The official announcement of this discovery appeared on Thursday June 23, 2022 in the journal Science. This bacterium is even visible to the naked eye and has remarkable characteristics due to its size, which can reach two centimeters.



The discovery made in Guadeloupe is the subject of an article in the journal Science of Thursday June 23, 2022, because “Thiomargarita magnifica” beyond its size, it is also its operation that intrigues.

it measures up to two centimeters, looks like an “eyelash” and shakes up the codes of microbiology” described to AFP Olivier Gros, professor of biology at the University of the West Indies, co-author of the study.


The largest bacterium in the world has been discovered in Guadeloupe.



©Sciences.org

This discovery was made on the surface of decaying mangrove leaves, in Guadeloupe, by Silvina González, researcher in marine biology at the University of the West Indies and the team of Professor Olivier Gros, microbiologist from the University of the West Indies.

At first I thought it was anything but a bacterium because something two centimeters cannot be a bacterium. . Cellular description techniques with electron microscopy show that it is indeed a bacterial organism. But with this size, we had no assurance that it was a single cell”

Olivier Gros, professor of biology at the University of the West Indies

AFP

Discovered in Guadeloupe more than ten years ago, it is all the work of the researchers that is rewarded.

Researchers from the Lawrence-Berkeley National Laboratory (USA), the Laboratory for Complex Systems Research in California and the University of the West Indies did not let go of their file despite the questioning of a first scientific magazine, which had been contacted. The proof not being robust enough in terms of image remembers Olivier Gros.

Complementary studies are carried out with Jean-Marie Volland, a young post-doctoral student from the University of the West Indies, first author of the study published in Science, who is moving to the United States, where the University of Berkeley recruited.

Several questions that arise in the scientific community about “Thiomargarita magnifica”

Its huge genome and the compartmentalization of its genetic material are complex characteristics, which have never been observed in other bacteria.

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