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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.
Rectal microbes influence effectiveness of HIV...
on December 13, 2019 at 2:25 pm
Microbes living in the rectum could make a difference to the effectiveness of experimental HIV vaccines, according to researchers.
Deadly 'superbugs' destroyed by molecular drills
on December 12, 2019 at 7:27 pm
Motorized molecules activated by light target and drill through highly antibiotic resistant bacteria and kill them within minutes. The molecules can open bacteria to attack by drugs they previously resisted. The strategy could be applied to bacterial infections or diseases on the skin, in the lungs or in the gastrointestinal tract.
Ocean microbes: Novel study underscores microbial...
on December 12, 2019 at 7:27 pm
A single drop of seawater can contain a wide representation of ocean microbes from around the world -- revealing novel insights into the ecology, evolution and biotechnology potential of the global microbiome.
New drug targets to treat Nipah virus
on December 12, 2019 at 7:26 pm
Nipah virus, which is transmitted to humans from bats and pigs, has a high mortality rate and there are no licensed drugs against it. Now, researchers have used information on the structure of the Nipah virus to identified 150 possible inhibitors of the virus.
Bovine kobuvirus in US
on December 12, 2019 at 5:25 pm
A virus that afflicts cattle that was first discovered in Japan in 2003 has made its way to the US, researchers report.
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.
Novel study underscores microbial individuality
on December 12, 2019 at 4:44 pm
A single drop of seawater can contain a wide representation of ocean microbes from around the world—revealing novel insights into the ecology, evolution and biotechnology potential of the global microbiome. A new publication in Cell reports a staggering degree of biological diversity that defies contemporary definitions of microbial species, illuminates reasons behind challenges in metagenomic studies, and may even further understanding of how marine microbes respond to climate change.
Teams of microbes are at work in our bodies....
on December 11, 2019 at 8:59 pm
In the last decade, scientists have made tremendous progress in understanding that groups of bacteria and viruses that naturally coexist throughout the human body play an important role in some vital functions like digestion, metabolism and even fighting off diseases. But understanding just how they do it remains a question.
Researchers show how opportunistic bacterium...
on December 10, 2019 at 6:38 pm
Researchers at the University of São Paulo (USP) in Brazil have described a system present in a species of opportunistic bacterium found in hospital environments that injects a cocktail of toxins into competing bacteria and completely eliminates them. This discovery can be used in the future development of new antimicrobial compounds.
Researchers discover new viral strategy to escape...
on December 10, 2019 at 3:43 pm
University of Otago researchers have discovered how viruses that specifically kill bacteria can outwit the bacteria by hiding from their defences, findings which are important for the development of new antimicrobials based on viruses and provide a significant advance in biological knowledge.
Researchers identify 'Achilles' heel' of...
on December 9, 2019 at 8:00 pm
A deadly superbug that infects an estimated 54,500 Americans a year has a secret weapon, a protein, that allows it to defy antibiotic treatment and immune system attacks. However, the secret is out now that researchers at The University of Texas Health Science Center at Houston (UTHealth) have identified the protein that acts as a defense mechanism for vancomycin-resistant enterococci (VRE). Their discovery opens the door for future treatment options in the fight against antibiotic resistance.