News tagged with bacterial
Knockouts in human cells point to pathogenic targets
15 hours ago |
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(PhysOrg.com) -- Whitehead researchers have developed a new approach for genetics in human cells and used this technique to identify specific genes and proteins required for pathogens.
Researchers discover biological basis of 'bacterial immune system'
Nov 25, 2009 |
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Bacteria don't have easy lives. In addition to mammalian immune systems that besiege the bugs, they have natural enemies called bacteriophages, viruses that kill half the bacteria on Earth every two days.
Researchers Establish Common Seasonal Patterns Among Bacterial Communities in Arctic Rivers
Space & Earth / Earth Sciences
Nov 24, 2009 |
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(PhysOrg.com) -- New research on bacterial communities throughout six large Arctic river ecosystems reveals predictable temporal patterns, suggesting that scientists could use these communities as markers ...
Dutch researchers make breakthrough in bioethanol production from agricultural waste
Nov 20, 2009 |
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With the introduction of a single bacterial gene into yeast, researchers from Delft University of Technology in the Netherlands achieved three improvements in bioethanol production from agricultural waste material: 'More ...
Scientists identify DNA that regulates antibody production
Nov 20, 2009 |
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(PhysOrg.com) -- When foreign invaders trip the immune system’s alarm, antibodies need to be specially sculpted to attack them head on. New research now shows that gene segments called enhancers control the reshuffling of ...
One word: bioplastics
Nov 17, 2009 |
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(PhysOrg.com) -- Every year, more than 250 billion pounds of plastic are produced worldwide. Much of it ends up in the world's oceans, a fact that troubles MIT biology professor Anthony Sinskey.
Sweet as can be: How E. coli gets ahead
Nov 12, 2009 |
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Scientists at the University of York have discovered how certain bacteria such as Escherichia coli have evolved to capture rare sugars from their environment giving them an evolutionary advantage in naturally competitive enviro ...
New explanation for nature's hardiest life form
Nov 12, 2009 |
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Got food poisoning? The cause might be bacterial spores, en extremely hardy survival form of bacteria, a nightmare for health care and the food industry and an enigma for scientists. Spore-forming bacteria, present almost ...
CDC now says 4,000 swine flu deaths in US
Nov 11, 2009 |
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(AP) -- Federal health officials now say that 4,000 or more Americans likely have died from swine flu - about four times the estimate they've been using.
Researchers discover key to vital DNA, protein interaction
Nov 09, 2009 |
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(PhysOrg.com) -- A researcher at Iowa State University has discovered how a group of proteins from plant pathogenic bacteria interact with DNA in the plant cell, opening up the possibility for what the scientist ...
Map of Human Bacterial Diversity Shows Wide Interpersonal Differences
Nov 05, 2009 |
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(PhysOrg.com) -- A University of Colorado at Boulder team has developed the first atlas of bacterial diversity across the human body, charting wide variations in microbe populations that live in different ...
Study reveals how plants and bacteria 'talk' to thwart disease
Nov 05, 2009 |
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When it comes to plants' innate immunity, like many of the dances of life, it takes two to tango. A receptor molecule in the plant pairs up with a specific molecule on the invading bacteria and, presto, the immune system ...
Bacteria expect the unexpected: Scientists observe the emergence of a new adaptation strategy
Nov 04, 2009 |
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Organisms ensure the survival of their species by genetically adapting to the environment. If environmental conditions change too rapidly, the extinction of a species may be the consequence. A strategy to ...
Bacteria mix it up at the microscopic level
Nov 02, 2009 |
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(PhysOrg.com) -- Many hands -- or many flagella -- make light work. In studies of the motion of tiny swimming bacteria, scientists at the U.S. Department of Energy's Argonne National Laboratory found that ...
Bacteria 'invest' wisely to survive uncertain times, scientists report
Nov 02, 2009 |
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Like savvy Wall Street money managers, bacteria hedge their bets to increase their chances of survival in uncertain times, strategically investing their biological resources to weather unpredictable environments.
