News tagged with pathogen virulence
History is key factor in plant disease, study finds
(Phys.org) -- The virulence of plant-borne diseases depends on not just the particular strain of a pathogen, but on where the pathogen has been before landing in its host, according to a new study from researchers ...
Apr 19, 2012 |
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Subtle differences can lead to major changes in parasites
Researchers have found the subtle genetic differences that make one parasite far more virulent than its close relative.
Mar 22, 2012 |
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New leads on mechanisms that confer virulence to E.coli-type bacteria
A team headed by scientists from the IRB Barcelona reports how the protein Ler, which is found in pathogenic bacteria, interacts with certain DNA sequences, thereby activating numerous genes responsible for ...
Dec 09, 2011 |
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Coral reefs in warming seas
Disease outbreaks are often associated with hot weather. Because many bacteria typically multiply more rapidly in warmer conditions, it's a commonly held notion that warm-weather outbreaks are a straightforward consequence ...
Dec 09, 2011 |
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Infectious fungus, thought to be asexual, isn't: More evidence of sex in the Candida genus
The fungi of the Candida genus, known to millions of patients worldwide for their ability to cause serious infections, were once all thought to be asexual. Even after scientists discovered that the mating habits of Candid ...
Dec 05, 2011 |
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Triple threat: One bacterium, three plasmids
Researchers from Australia found something completely new while conducting a genetic study of the pathogenesis of an enteric disease in birds. They report what is believed to be the first bacterial strain to carry three closely ...
Nov 14, 2011 |
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Researchers reconstruct genome of the Black Death
led by researchers at McMaster University and the University of Tubingen in Germany -- has sequenced the entire genome of the Black Death, one of the most devastating epidemics in human history.
Oct 12, 2011 |
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Researchers uncover mechanisms of plant infection
(Medical Xpress) -- Researchers from the Virginia Bioinformatics Institute at Virginia Tech and a team of international colleagues have identified the functions of a large family of virulence proteins used by a dangerous ...
Aug 24, 2011 |
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Scarlet fever pathogen draft genome sequence released
Scarlet fever has revealed unusual high infect rate in Hong Kong this year. So far, 466 children were infected and 2 of them dead. Scarlet fever is caused by Streptococcus pyogenes, a gram-positive pathogen that can be tra ...
Jun 22, 2011 |
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Deadly bacteria may mimic human proteins to evolve antibiotic resistance
Deadly bacteria may be evolving antibiotic resistance by mimicking human proteins, according to a new study by the Translational Genomics Research Institute (TGen).
Jun 01, 2011 |
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Genome sequences for two deadly plant pathogens make major contributions to scientific research
A scientific paper written by an international team of researchers led by scientists at the Virginia Bioinformatics Institute at Virginia Tech and published in the journal Science in 2006 has surpassed 200 citations in the ...
Dec 15, 2010 |
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Bad Bacteria and Their Harmless Kin Share, Swap Genes
(PhysOrg.com) -- Comparing the genomes of disease-causing and harmless bacteria, University of Arizona microbiologists found no clear genetic demarcation between the two groups. The bacteria have swapped genes ...
Aug 04, 2010 |
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Immune system quirk could lead to effective tularemia vaccine
Immunologists at the University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh of UPMC and the have found a unique quirk in the way the immune system fends off bacteria called Francisella tularensis, ...
Medicine & Health / Medical research
Oct 22, 2009 |
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Potato blight plight looks promising for food security
Over 160 years since potato blight wreaked havoc in Ireland and other northern European countries, scientists funded by the Biotechnology and Biological Sciences Research Council (BBSRC) finally have the blight-causing pathogen ...
Aug 10, 2009 |
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New protein identified in bacterial arsenal
(PhysOrg.com) -- Nearly a billion years ago, bacteria evolved an insidious means of infecting their hosts — a syringe-like mechanism able to inject cells with stealthy hijacker molecules. These molecules, ...
Mar 03, 2009 |
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