News tagged with quorum
A Matter of Density, Not Quantity: Individual Bacterial Cells are Capable of Quorum Sensing when Confined in Small Volum
Jul 10, 2009 |
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(PhysOrg.com) -- Infections of wounds, pneumonia, etc. in hospitals in particular are often caused by bacteria called Pseudomonas aeruginosa. Once they reach a certain density, colonies of Pseudomonas aeruginosa produce virulence ...
How house-hunting ants choose the best home
Apr 22, 2009 |
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(PhysOrg.com) -- Direct comparison of alternatives isn’t always the best way to make a decision - at least if you’re an ant. House-hunting rock ants collectively manage to choose the best nest-site without ...
Einstein researchers develop novel antibiotics that don't trigger resistance
Mar 13, 2009 |
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Bacterial resistance to antibiotics is one of medicine's most vexing challenges. In a study described in Nature Chemical Biology, researchers from Albert Einstein College of Medicine of Yeshiva University are de ...
Nature study demonstrates that bacterial clotting depends on clustering
Biology /
Nov 02, 2008 |
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Bacteria can directly cause human blood and plasma to clot—a process that was previously thought to have been lost during the course of vertebrate evolution, according to new research at the University of Chicago, National ...
Search results for quorum
New quorum-sensing pathway in yeast found
Apr 17, 2006 |
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U.S. researchers say they have discovered a novel quorum-sensing pathway in Saccharomyces cerevisiae, also known as baker's yeast.
Finding the constant in bacterial communication
Jul 07, 2009 |
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The Rosetta Stone of bacterial communication may have been found.
Communication breakdown: New strategy may be valid alternative to traditional antibiotics
Jul 30, 2009 |
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Certainly there is strength in numbers, but only if those numbers can effectively communicate with one another. Now, a new study finds that administration of a novel small molecule which effectively disrupts a key bacterial ...
Evolution of virulence regulation in Staphylococcus aureus
Biology /
Oct 09, 2008 |
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Scientists have gained insight into the complex mechanisms that control bacterial pathogenesis and, as a result, have developed new theories about how independent mechanisms may have become intertwined during evolution. The ...
Turning on cell-cell communication wipes out staph biofilms
Biology /
Apr 30, 2008 |
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University of Iowa researchers have succeeded in wiping out established biofilms of Staphylococcus aureus (staph) by hijacking one of the bacteria's own regulatory systems. Although the discovery is not ready for clinical ...
Toward a Rosetta Stone for Microbes' Secret Language
Dec 10, 2007 |
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Scientists are on the verge of decoding the special chemical language that bacteria use to “talk” to each other, British researchers report in a commentary article that appeared in the November issue of ACS ...
Bacteria 'launch a shield' to resist attack
Nov 02, 2009 |
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Bacteria that cause chronic lung infections can communicate with each other to form a deadly shield against the body's natural defenses. Studying these interactions could lead to new ways of treating bacteria that are resistant ...
When following the leader can lead into the jaws of death
Biology /
May 12, 2008 |
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For animals that live in social groups, and that includes humans, blindly following a leader could place them in danger. To avoid this, animals have developed simple but effective behaviour to follow where ...
Researchers block bacterial communication system to prevent deadly staph infections
Oct 30, 2007 |
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The advantage of the new vaccine is that it would work not only on current bacterial resistant stains but also would not induce the potential for new bacterial resistance because, rather than killing bacterial cells, it blocks ...
One Can Act Without Group Support; Even in the Bacterial World
Dec 08, 2009 |
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(PhysOrg.com) -- A single bacterium can act alone, performing the same kinds of actions that a group normally does. The behavior of that bacterium can be manipulated at the cellular level. That’s the intriguing ...
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