Monday , August 2 2021

"Ravenous, hairy Ogre" Microbe can represent a completely new branch in the tree of life



The strip of stripes gives the microbe Hemimastix kukwesjijk "hairy" appearance.

Trust: The Simpson Lab, Dalhousie University

Who needs strangers when there are strange ways of life that can still be found in Canada?

Scientists recently discovered two previously unknown microbial groups in a Canadian plume sample, and the samples were so rare that scientists had to reform the whole tree of life to give them room.

Microbes, also known as protes, belong to the group where the spelling of the language hemimastigots and the first genetic analysis of these unique microorganisms revealed that they were even more strange than anyone suspected of. [Magnificent Microphotography: 50 Tiny Wonders]

The hemimastigots, found for the first time in the 19th century, were previously classified as a much larger group called the super kingdom, although it was unclear where they belonged.

But new DNA evidence showed that they would deviate dramatically from all other forms of life in the supercars. In fact, hemimastigots can represent a completely new kingdom for themselves, requiring a new kind of limb in the tree of life, researchers announced in a new study.

As with other hemimastigues, new species have a long-lasting frame surrounded by crushed shingles; Under the 3D magnification of scanning electron microscopy, creatures resemble a bit of pumpkin pumpkin seed.

New microorganisms are organisms that deserve their own

New microorganisms are organisms that deserve their own "supergroup".

Trust: The Simpson Lab, Dalhousie University

"They tend to lean somewhat uncomfortably – they seem to look like wheats (another important" hairy "cells), but swim in less coordinated," Dalia's Biology Postgraduate Student at Yana Eglit University in Canada told Live Science in an email.

Eglit picked up unpleasant organisms as she walked on the Nova Scotia route; Whenever he and his colleagues are outdoors, they are almost always looking for still unknown microbes in a number of habitats – "beach sand to our lakes and feet," Eglit told Live Science.

"Of course, if we see some unusual puddles or salt lake or whatever, we also see them. We are opportunists," Eglit said.

Nova Scotia is the Mi'n knock First Nation region, so scientists gave the new microbes a name inspired by the Mi'kmaq folklore creature. "Kukwes" describes Mi-kmaq people as "hairy, hairy Ogre" and again found microbial, now known as Hemimastix kukwesjijk is a voracious predator that reminded the study of a ferocious Ogre scholars.

Using the technique known as single cell transcripts, researchers are studying individual cells in microbes. They observe the messenger RNA (mRNA) molecules because they mediate information between hundreds of genes.

The previous evaluations of the hemimastigots classified them by the size and shape of visible structures. By sequencing this genetic information scientists were able to classify hemimastigots with unprecedented precision, exposing a line that has a unique position with other eukaryotic organisms with membrane wrapped core.

"It's a" life tree "branch that has been isolated for a long time, perhaps over a billion years, and we did not have any information about it," said Alastair Simpson, Dalhousie University's biologist, in his statement.

The findings of the study underline the previously unknown importance of hemimastigots in the interpretation of complex cellular development – to dismantle the origin of cellular infrastructure by resolving the relationships between the first organisms of the earth, the researchers said.

"This invention literally reduces the" life tree "branch of one of its deepest points," Simpson said. "It opens a new door to understanding the evolution of complex cells – and their ancient origins – back far before the animals and plants appeared on Earth."

The results were published in Nature on November 14.

Originally publishedon Live Science.


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