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Microbiology News
Tue, 16 Sep 2014 16:24:48 EDT
Healthy humans make nice homes for viruses
The same viruses that make us sick can take up residence in and on the human body without provoking a sneeze, cough or other troublesome symptom, according to new research. On average, healthy individuals carry about five types of viruses on their bodies, the researchers report. The study is the first comprehensive analysis to describe the diversity of viruses in healthy people.
Tue, 16 Sep 2014 11:17:08 EDT
Bacterial communication: And so they beat on, flagella against the cantilever
Researchers have developed a new model to study the motion patterns of bacteria in real time and to determine how these motions relate to communication within a bacterial colony. They chemically attached colonies of E. coli bacteria to a microcantilever, coupling its motion to that of the bacteria. As the cantilever itself isn’t doesn’t generate any vibrations, or ‘noise,’ this allowed the researchers to monitor the colony’s reactions to various stimuli in real time.
Tue, 16 Sep 2014 10:22:24 EDT
Each tree species has unique bacterial identity, microbiome research shows
Each tree species has its own bacterial identity. That's the conclusion of researchers who studied the genetic fingerprints of bacteria on 57 species of trees growing on a Panamanian island.
Tue, 16 Sep 2014 10:19:58 EDT
Unraveling cell division: Process of mitosis more clear, thanks to new research
The process of mitosis has made more clear, thanks to recent research. A new study describes how Topo 2, an enzyme that disentangles DNA molecules and is essential for proper cell division.
Tue, 16 Sep 2014 10:19:56 EDT
Proteins: Good networkers make prime targets
Proteins form either small or large networks to perform their functions. How these protein networks are subverted by pathogens has been investigated on a plant model by a research team who found that distinct pathogens like fungi and bacteria use the same tactic: launching targeted attacks on highly networked proteins that have multiple functions.
Tue, 16 Sep 2014 10:18:08 EDT
Cats lend a helping paw in search for anti-HIV drugs
A protein found in both the feline immunodeficiency virus (FIV) -- which causes AIDS in cats -- and the human immunodeficiency virus (HIV) might inspire new anti-HIV drugs, researchers report. They offer up a detailed, 3-D molecular map of FIV integrase that could help scientists also understand how this protein works in HIV.
Tue, 16 Sep 2014 09:48:15 EDT
New drug formulations to boost fight against respiratory illnesses, antibiotic-resistant superbugs
Antibiotic resistance is a challenge in the treatment of diseases today as bacteria continuously mutate and develop resistance against multiple drugs designed to kill them, turning them into superbugs. New ways to enhance the efficacy of drugs used to treat respiratory system infections and antibiotic-resistant superbugs have now been uncovered by researchers.
Tue, 16 Sep 2014 08:49:07 EDT
What's for dinner? Rapidly identifying undescribed species in a commercial fungi packet
For lovers of wild foods, autumn harks a season of bounty. Fungi of dizzying variety erupt from wood and soil, luring intrepid collectors to woodlands in search of elusive but delectable wild mushrooms. Part of their appeal lies in the allure of the treasure hunt, and their mysterious not-quite-meat, not-quite-vegetable qualities that belie an almost otherworldly existence. But are the mushrooms which you are eating known to science?
Mon, 15 Sep 2014 16:53:00 EDT
Tropical tree microbiome discovered in Panama
Despite the fact that tropical forests are the most biodiverse terrestrial ecosystems on the planet, more is known about belly-button bacteria than bacteria on trees in the tropics. Scientists working on Panama's Barro Colorado Island discovered that small leaf samples from a single tree were home to more than 400 different kinds of bacteria. The combined sample from 57 tree species contained more than 7,000 different kinds.
Mon, 15 Sep 2014 16:52:25 EDT
How bacteria ward off viruses: New molecular machinery discovered
Researchers have provided the first blueprint of a bacterium's "molecular machinery," showing how bacterial immune systems fight off the viruses that infect them. By tracking down how bacterial defense systems work, the scientists can potentially fight infectious diseases and genetic disorders. The key is a repetitive piece of DNA in the bacterial genome called a CRISPR, for Clustered Regularly Interspaced Short Palindromic Repeats.
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