News tagged with viruses and bacteria


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Search results for viruses and bacteria


Researchers Examine How Viruses Destroy Bacteria

Biology / Cell & Microbiology

created Nov 18, 2009 | popularity not rated yet | comments 0

Viruses are well known for attacking humans and animals, but some viruses instead attack bacteria. Texas A&M University researchers are exploring how hungry viruses, armed with transformer-like weapons, attack bacteria, which ...


Antarctic lake

Antarctic lake home to diverse community of viruses

Biology / Cell & Microbiology

created Nov 11, 2009 | popularity 4.9 / 5 (17) | comments 1

(PhysOrg.com) -- A study of the genetic structure of viruses in an Antarctic lake has revealed an astonishing genetic richness in the large number of viral families discovered.


Plasma-in-a-bag for sterilizing devices

Physics / General Physics

created Nov 09, 2009 | popularity not rated yet | comments 1

The practice of sterilizing medical tools and devices helped revolutionize health care in the 19th century because it dramatically reduced infections associated with surgery. Through the years, numerous ways of sterilization ...


Researchers discover biological basis of 'bacterial immune system'

Biology / Cell & Microbiology

created Nov 25, 2009 | popularity 4.8 / 5 (4) | comments 0

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 discover biological basis of 'bacterial immune system'

Chemistry / Biochemistry

created Nov 30, 2009 | popularity 4.8 / 5 (4) | comments 1

(PhysOrg.com) -- 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.


There's a speed limit to the pace of evolution, biologists say

Biology / Evolution

created Nov 02, 2009 | popularity 4.3 / 5 (3) | comments 0

Researchers at the University of Pennsylvania have developed a theoretical model that informs the understanding of evolution and determines how quickly an organism will evolve using a catalogue of "evolutionary speed limits." ...


Probing life's extremes in Yellowstone

Probing life's extremes in Yellowstone (w/ Podcast)

Biology / Cell & Microbiology

created Nov 24, 2009 | popularity not rated yet | comments 0

(PhysOrg.com) -- Idaho National Laboratory biologist Frank Roberto squats on a bare, gravelly patch of ground in Yellowstone National Park's rolling backcountry. At his feet, scalding water churns in a mustard-yellow ...


Cells defend themselves from viruses, bacteria with armor of protein errors

Biology / Cell & Microbiology

created Nov 25, 2009 | popularity 5 / 5 (7) | comments 1

When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them ...


Sponges against cancer

Biology / Cell & Microbiology

created Nov 20, 2009 | popularity 4.5 / 5 (2) | comments 0

Deep under the sea, there's a battle of life and death going on, with no holds barred. Sponges and other marine animals which cannot move around might seem to be defenceless against predators. Yet nothing is further from ...


Knockouts in human cells point to pathogenic targets

Knockouts in human cells point to pathogenic targets

Biology / Cell & Microbiology

created Nov 26, 2009 | popularity 5 / 5 (1) | comments 0

(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.



List of search results for viruses and bacteria