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Latest Quorum sensing Stories

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2009-04-22 09:57:56

Dr Elva Robinson and colleagues in the University's School of Biological Sciences fitted rock ants with tiny radio-frequency identification tags, each measuring 1 / 2,000 (one two-thousandth) the size of a postage stamp, then observed as they chose between a poor nest nearby and a good nest further away. The ant colonies showed sophisticated nest-site choice, selecting the superior site even though it was nine times further away than the alternative. The best nest was chosen, despite the fact...

2009-03-16 18:53:23

U.S. researchers say they are developing a new generation of antibiotic compounds that do not provoke bacterial resistance. Researchers at Albert Einstein College of Medicine of Yeshiva University say the compounds work against two notorious microbes -- Vibrio cholerae, which causes cholera, and E. coli 0157:H7, the food contaminant that causes approximately 110,000 illnesses and 50 deaths a year in the United States. Senior author Vern Schramm says antibiotics initially work extremely well,...

2008-08-18 15:05:00

By ELIE DOLGIN When bacteria start talking, bad things happen. Many bacteria release chemical signals in search of their "friends." When chemical levels remain low, the bacteria don't make much mischief. But when the bugs congregate, chemicals build up, which alerts the microbes that there are enough of them to kick off an infection. These collective infections can be especially severe and hard to treat. But Helen Blackwell, a University of Wisconsin-Madison assistant professor of...

2005-08-30 14:47:03

A team of biomedical researchers from Brandeis University and the University of Texas at Austin has determined the first 3-dimensional structure of an enzyme that may be pivotal in preventing certain bacterial infections in plants, animals and humans, according to a study published in the Proceedings of the National Academy of Sciences. The enzyme had already been shown in previous studies to significantly decrease soft rot in potato plants. The Brandeis and University of Texas team purified...

2004-11-27 03:00:16

Bacteria mix and mingle with microscopic fervor Welcome to a vibrant social scene that has operated largely in secret until the past few years. Its participants don't seem to mind going unnoticed. They congregate in immense numbers to fend off enemies and the brute forces of nature, to obtain food, to reproduce, and to move to greener pastures. They're adept at forming bands to hunt prey, which are consumed on the spot. Vital messages repeatedly course through these assembled throngs. Under...


Word of the Day
cruet
  • A vial or small glass bottle, especially one for holding vinegar, oil, etc.; a caster for liquids.
This word is Middle English in origin, and ultimately comes from the Old French, diminutive of 'crue,' flask.
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