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Latest Flagellum Stories

2009-04-27 12:47:44

U.S. government scientists say they have decoded the structure of a protein complex secretion system that is essential for infection. The research, conducted in part at the U.S. Department of Energy's Brookhaven National Laboratory, involving a needle-like protein complex on the surface of certain bacteria may help scientists develop new strategies to thwart infection. The scientists said their research involved a needle-like protein complex known as a type III secretion system, on the...

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2009-04-20 10:49:09

Unique footage shows 'waltzing' and 'minueting' Scientists at the Cambridge University have discovered that freshwater algae can form stable groupings in which they dance around each other, miraculously held together only by the fluid flows they create. Their research was published today in the journal Physical Review Letters. The researchers studied the multicellular organism Volvox, which consists of approximately 1,000 cells arranged on the surface of a spherical matrix about half a...

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2009-04-15 11:51:21

Major impact envisioned for pharmaceutical, food, agriculture industries Scientists studying how marine bacteria move have discovered that a sharp variation in water current segregates right-handed bacteria from their left-handed brethren, impelling the microbes in opposite directions. This finding and the possibility of quickly and cheaply implementing the segregation of two-handed objects in the laboratory could have a big impact on industries like the pharmaceutical industry, for which the...

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2008-11-20 11:07:15

Brown University physicists have completed the most detailed study of the swimming patterns of a microbe, showing for the first time how its movement is affected by drag and a phenomenon called Brownian motion. The findings appear online this week in the Proceedings of the National Academy of Sciences. Imagine yourself swimming in a pool: It's the movement of your arms and legs, not the viscosity of the water, that mostly dictates the speed and direction that you swim. For tiny organisms, the...

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2007-01-30 08:10:00

Researchers at Rensselaer Polytechnic Institute have discovered new details about how bacteria generate energy to live. In two recently published papers, the scientists add key specifics to the molecular mechanism behind the pathogen that causes cholera. The work could provide a better understanding of this pathogen, while also offering insight into how cells transform energy from the environment into the forms required to sustain life. The findings may lead to a better understanding of how...

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2006-05-30 14:00:00

When single-celled organisms such as sperm crack their whip-like appendages called flagella, the beating sets them in motion. But in certain colonies of green algae, flagella also boost nutrient uptake, according to surprising new research. In the early online edition of the Proceedings of the National Academy of Sciences, researchers from the University of Arizona and Brown University explain how flagella allow these algae to get the energy they need to multiply and create colonies - the...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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