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Tag: "quorum" at biology news

Sequencing of marine bacterium will help study of cell communication

...rginia Tech microbiologist advance her research on quorum sensing, or how cells communicate and function as ...luminescence. One of the longest studied models of quorum sensing is the bioluminescent marine bacterium V. fischeri. "It was selected by Drs. Ruby and Green...

To control germs, scientists deploy tiny agents provocateurs

... small molecules and peptides - a process known as quorum sensing. Past a certain density threshold, the col...ch as biofilm formation. Attempting to manipulate quorum sensing in both plant and animal bacteria, Blackwell and her team are designing new compounds that m...

Understanding how bacteria communicate may help scientists prevent disease

...ssociated Universities to continue his research on quorum sensing in bacteria. He is modeling the sequence o...ni works with Vibrio cholerae as a model bacteria, quorum sensing appears to be a universal process in bacteria. So what he learns about the communication pro...

Immune system's distress signal tells bacteria when to strike back

...eroffensive. Their first move is a process called quorum sensing, which bacteria use to gauge their own numbers. When interferon-gamma binds with OprF on the bacterial cell surface, it activates a gene called rhII. RhII triggers synthesis and secretion of a bacterial signaling molecule called C4-HSL. By me...

Say what? Bacterial conversation stoppers

...." Using a chemical communication process called quorum sensing, bacteria converse among themselves to count their numbers and to get the population to act in unison. A synchronized group of bacteria can mimic the power of a multi-cellular organism, ready to face challenges too daunting for an individual ...

Antibacterial coatings cut infection rates

.... Professor Griesser likens this process, called quorum sensing, to the example of soccer hooligans who on their own are quite ineffective but when they group together, can be a powerful force that creates havoc of disastrous proportions. It's the furanones that come to the rescue by irreversibly switch...

Honeybee decision-making ability rivals any department committee

...Thomas Seeley, includes coalition building until a quorum develops. The Seeley group's study, which is publ...excellent site. To test whether the bees decide by quorum or consensus, the researchers: offered swarms two first-rate sites on Appledore Island in the Gulf...

Drug resistance may travel same path as quorum sensing

...le for cell-cell communication, a process known as quorum sensing, said researchers from Baylor College of Medicine in a report that appears online today in the Proceedings of the National Academy of Sciences. "We believe that the drugs exported by these pumps may actually be similar in structure to molecu...

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