• Email Us: [email protected]
  • Contact Us: +1 718 874 1545
  • Skip to main content
  • Skip to primary sidebar

Medical Market Report

  • Home
  • All Reports
  • About Us
  • Contact Us

“Microbial Lions” Are The Newest Branch Of The Tree Of Life

December 9, 2022 by Deborah Bloomfield

Researchers have discovered a new branch of the tree of life. Two microscopic predators make up this new “Provora” branch. The little organisms represent two different species. One is called nebulids and they eat their prey whole. The second one is called nibblerids: their name is inspired by the fact they have tooth-like structures that they use to nibble on their prey.

The two species look the same superficially, but they differ in fine cellular structure, genetics, and behavior. The team sampled water from all over the world, including the coral reefs of Curaçao, sediment from the Black and Red Seas, and water from the northeast Pacific and Arctic oceans.

Advertisement

“I noticed that in some water samples there were tiny organisms with two flagella, or tails, that convulsively spun in place or swam very quickly. Thus began my hunt for these microbes,” first author Dr. Denis Tikhonenkov, senior researcher at the Institute for Biology of Inland Waters of the Russian Academy of Sciences, said in a statement.

These predators are found globally in both sea- and freshwater, but they are numerically rare compared to many other species. This and their predatory behavior made the researchers consider them akin to lions – numerically rare when it comes to their habitat, but very important nevertheless.

“Imagine if you were an alien and sampled the Serengeti: you would get a lot of plants and maybe a gazelle, but no lions. But lions do matter, even if they are rare. These are lions of the microbial world,” added co-author Dr. Patrick Keeling, professor at the University Of British Columbia.

Advertisement

The team discovered that whenever these microbes were present in a sample, the rest of the organisms quickly disappeared. They decided to cultivate the predators, which meant having to provide them with prey as well as food for the prey. This was complicated in itself, and had the extra complication of being an international collaboration between Canada and Russia over the last few years, considering the COVID pandemic and the Russian invasion of Ukraine.

But by growing these microbes, the team was able to extract their genetic material and discovered that they were different from the vast majority of other known organisms. Things like the animal or plant kingdoms are twigs compared to the branchlike supergroups of organisms, and these two species belong to a completely new branch.

“In the taxonomy of living organisms, we often use the gene ‘18S rRNA’ to describe genetic difference. For example, humans differ from guinea pigs in this gene by only six nucleotides. We were surprised to find that these predatory microbes differ by 170 to 180 nucleotides in the 18S rRNA gene from every other living thing on Earth. It became clear that we had discovered something completely new and amazing,” Dr. Tikhonenkov said.

Advertisement

The findings are published in the journal Nature.

Deborah Bloomfield
Deborah Bloomfield

Related posts:

  1. Golf-Royal Portrush to host 2025 British Open
  2. Exclusive: India plan for tighter e-commerce rules faces internal government dissent – documents
  3. Reserve manager interest in European bonds growing, say bankers
  4. Amazon launches an elder care subscription service, ‘Alexa Together’

Source Link: “Microbial Lions” Are The Newest Branch Of The Tree Of Life

Filed Under: News

Primary Sidebar

  • Unethical Experiments: When Scientists Really Should Have Stopped What They Were Doing Immediately
  • The First Humans Were Hunted By Leopards And Weren’t The Apex Predators We Thought They Were
  • Earth’s Passage Through The Galaxy Might Be Written In Its Rocks
  • What Is An Einstein Cross – And Why Is The Latest One Such A Unique Find?
  • If We Found Life On Mars, What Would That Mean For The Fermi Paradox And The Great Filter?
  • The Longest Living Mammals Are Giants That Live Up To 200 Years In The Icy Arctic
  • Entirely New Virus Detected In Bat Urine, And It’s Only The 4th Of Its Kind Ever Isolated
  • The First Ever Full Asteroid History: From Its Doomed Discovery To Collecting Its Meteorites
  • World’s Oldest Pachycephalosaur Fossil Pushes Back These Dinosaurs’ Emergence By 15 Million Years
  • The Hole In The Ozone Layer Is Healing And On Track For Full Recovery In The 21st Century, Thanks To Science
  • First Sweet Potato Genome Reveals They’re Hybrids With A Puzzling Past And 6 Sets Of Chromosomes
  • Why Is The Top Of Canada So Sparsely Populated? Meet The “Canadian Shield”
  • Humans Are In The Middle Of “A Great Evolutionary Transition”, New Paper Claims
  • Why Do Some Toilets Have Two Flush Buttons?
  • 130-Year-Old Butter Additive Discovered In Danish Basement Contains Bacteria From The 1890s
  • Prehistoric Humans Made Necklaces From Marine Mollusk Fossils 20,000 Years Ago
  • Zond 5: In 1968 Two Soviet Steppe Tortoises Beat Humans To Orbiting Around The Moon
  • Why Cats Adapted This Defense Mechanism From Snakes
  • Mother Orca Seen Carrying Dead Calf Once Again On Washington Coast
  • A Busy Spider Season Is Brewing: Why This Fall Could See A Boom Of Arachnid Activity
  • Business
  • Health
  • News
  • Science
  • Technology
  • +1 718 874 1545
  • +91 78878 22626
  • [email protected]
Office Address
Prudour Pvt. Ltd. 420 Lexington Avenue Suite 300 New York City, NY 10170.

Powered by Prudour Network

Copyrights © 2025 · Medical Market Report. All Rights Reserved.

Go to mobile version