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Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
microorganism : an organism (such as a bacterium or protozoan) of microscopic or ultramicroscopic size — Webster
Microorganism, or microbe, is a microscopic organism, which may be single-celled or multicellular. Microorganisms include all unicellular organisms and so are extremely diverse. Of the three domains of life identified by Carl Woese, all of the Archaea and Bacteria are microorganisms. These were previously grouped together in the two domain system as Prokaryotes, the other being the Eukaryotes. The third domain Eukaryota includes all multicellular organisms and many unicellular protists and protozoans. Some protists are related to animals and some to green plants. Many of the multicellular organisms are microscopic, namely micro-animals, some fungi and some algae, but these are not discussed here.
They live in almost every habitat from the poles to the equator, deserts, geysers, rocks and the deep sea. Some are adapted to extremes such as very hot or very cold conditions, others to high pressure and a few such as Deinococcus radiodurans to high radiation environments. Microorganisms also make up the microbiota found in and on all multicellular organisms. A December 2017 report stated that 3.45-billion-year-old Australian rocks once contained microorganisms, the earliest direct evidence of life on Earth. — Wikipedia
Microbiology is the study of microorganisms, those being unicellular (single cell), multicellular (cell colony), or acellular (lacking cells). Microbiology encompasses numerous sub-disciplines including virology, parasitology, mycology and bacteriology.
Eukaryotic microorganisms possess membrane-bound cell organelles and include fungi and protists, whereas prokaryotic organisms—all of which are microorganisms—are conventionally classified as lacking membrane-bound organelles and include eubacteria and archaebacteria. Microbiologists traditionally relied on culture, staining, and microscopy. However, less than 1% of the microorganisms present in common environments can be cultured in isolation using current means.
Microbiologists often rely on molecular biology tools such as DNA sequence based identification, for example 16s rRNA gene sequence used for bacteria identification. — Wikipedia
Microbes and More News -- ScienceDaily Current science articles on microbes and more. Read about viruses, bacteria, fungi and prions and see related videos.
A potential new weapon in the war against...
on June 4, 2020 at 3:16 pm
Researchers have shown that a newly discovered natural antibiotic, teixobactin, could be effective in treating bacterial lung conditions such as tuberculosis and those commonly associated with COVID-19.
Scientists aim gene-targeting breakthrough...
on June 4, 2020 at 1:56 pm
Scientists at Berkeley Lab's Molecular Foundry have joined forces with a research team at Stanford to aim a gene-targeting, antiviral agent called PAC-MAN against COVID-19.
'Poisoned arrow' defeats antibiotic-resistant...
on June 3, 2020 at 5:25 pm
Poison is lethal all on its own -- as are arrows -- and together, they can take down the strongest opponents. Researchers have found an antibiotic that simultaneously punctures bacterial walls and destroys folate within their cells -- killing like a poisoned arrow -- while proving immune to antibiotic resistance.
Respiratory virus builds 'doorbell' to trick its...
on June 3, 2020 at 5:25 pm
New research from microbiologists has shed light on how the respiratory syncytial virus (RSV) -- one of the most common viral infections -- breaks into our cells to cause infection. Researchers discovered that RSV tricks cells into letting it in by essentially ringing a doorbell that calls its receptor to the virus waiting at the door.
Atomic blueprint of 'molecular machine' reveals...
on June 3, 2020 at 5:00 pm
Scientists have revealed the first known atomic structure of a 'molecular machine' responsible for installing critical signaling proteins into cellular membranes. The findings shed new light on how this process works, and lay the foundation for potential future therapies for diseases like cancer, Alzheimer's and cystic fibrosis.
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
Small protein, big impact: ProQ found to aid in...
on June 4, 2020 at 12:18 pm
Meningococci are bacteria that can cause life-threatening meningitis and sepsis. These pathogens use a small protein with a large impact: The RNA-binding protein ProQ is involved in the activation of more than 250 bacterial genes.
Researchers develop 'poisoned arrow' to defeat...
on June 3, 2020 at 3:00 pm
Poison is lethal all on its own—as are arrows—but their combination is greater than the sum of their parts. A weapon that simultaneously attacks from within and without can take down even the strongest opponents, from E. coli to MRSA (methicillin resistant Staphylococcus aureus).
Antibiotic-destroying genes widespread in...
on June 3, 2020 at 7:25 am
The latest generation of tetracyclines—a class of powerful, first-line antibiotics—was designed to thwart the two most common ways bacteria resist such drugs. But a new study from researchers at Washington University in St. Louis and the National Institutes of Health (NIH) has found that genes representing yet another method of resistance are widespread in bacteria that live in the soil and on people. Some of these genes confer the power to destroy all tetracyclines, including the […]
Researchers develop experimental rapid COVID-19...
on May 29, 2020 at 4:10 pm
Scientists from the University of Maryland School of Medicine (UMSOM) developed an experimental diagnostic test for COVID-19 that can visually detect the presence of the virus in 10 minutes. It uses a simple assay containing plasmonic gold nanoparticles to detect a color change when the virus is present. The test does not require the use of any advanced laboratory techniques, such as those commonly used to amplify DNA, for analysis. The authors published their work last week in the American […]
The most common organism in the oceans harbors a...
on May 29, 2020 at 12:49 pm
The most common organism in the oceans, and possibly on the entire planet, is a family of single-celled marine bacteria called SAR11. These drifting organisms look like tiny jelly beans and have evolved to outcompete other bacteria for scarce resources in the oceans.