Related topics: pathogens

New Method Tests Severity of Key Citrus Virus

(PhysOrg.com) -- A new rapid way to test severity of the devastating citrus tristeza virus (CTV) in citrus trees has been developed by Agricultural Research Service (ARS) scientists in Parlier, Calif. The results of this ...

One Can Act Without Group Support; Even in the Bacterial World

(PhysOrg.com) -- A single bacterium can act alone, performing the same kinds of actions that a group normally does. The behavior of that bacterium can be manipulated at the cellular level. That’s the intriguing finding ...

Unusual bacteria help balance the immune system in mice

Medical researchers have long suspected that obscure bacteria living within the intestinal tract may help keep the human immune system in balance. An international collaboration co-led by scientists at NYU Langone Medical ...

C. difficile hypervirulence genes identified

Five genetic regions have been identified that are unique to the most virulent strain of Clostridium difficile (C. difficile), the hospital superbug. Researchers writing in BioMed Central's open access journal Genome Biology ...

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 ...

Structural biology scores with protein snapshot

In a landmark technical achievement, investigators in the Vanderbilt Center for Structural Biology have used nuclear magnetic resonance (NMR) methods to determine the structure of the largest membrane-spanning protein to ...

New study overturns orthodoxy on how macrophages kill bacteria

For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois disproves that.

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, called virulence ...

New research study to shed light on emerging seaborne pathogen

A new research study at the University of Delaware seeks to determine why Vibrio parahaemolyticus, a microorganism that lives in seawater and is related to the bacterium that causes cholera, is expanding its range and virulence.

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