Bacteria


  • Iowa State, Ames Lab Scientists Describe Protein Pumps That Allow Bacteria to Resist Drugs
    Research teams led by Edward Yu of Iowa State University and the Ames Laboratory have described the structures of two proteins they believe pump antibiotics from bacteria, allowing the bacteria to resist medications. One of the protein pumps, known as MtrF, is believed to ...More
    2 weeks ago Posted in News
  • Bacterial 'Memory' Targets Invading Viruses
    One of the immune system's most critical challenges is to differentiate between itself and foreign invaders -- and the number of recognized autoimmune diseases, in which the body attacks itself, is on the rise. But humans are not the only organisms contending with "friendly ...More
    3 weeks ago Posted in News
  • How a Bacterial Cell Recognizes Its Own DNA
    It may come as a bit of a surprise to learn that bacteria have an immune system - in their case to fight off invasive viruses called phages. And like any immune system -- from single-celled to human -- the first challenge of the bacterial immune system is to detect the ...More
    4 weeks ago Posted in News
  • UMass Amherst Research Advances Understanding of How Bacteria Communicate
    Bacteria have traditionally been viewed as solitary organisms that "hang out on their own," says molecular biologist Kevin Griffith of the University of Massachusetts Amherst. However, scientists now realize that in fact, bacteria exhibit social behavior within groups. As ...More
    4 weeks ago Posted in News
  • Researchers Find That Microbes are 'Scared to Death' by Virus Presence
    The microbes could surrender to the harmless virus, but instead freeze in place, dormant, waiting for their potential predator to go away, according to a recent study in mBio. University of Illinois researchers found that Sulfolobus islandicus can go dormant, ceasing to ...More
    April 2, 2015 Posted in News
  • Common Bacteria on the Verge of Becoming Antibiotic-Resistant Superbugs
    Antibiotic resistance is poised to spread globally among bacteria frequently implicated in respiratory and urinary infections in hospital settings, according to new research at Washington University School of Medicine in St. Louis. The study shows that two genes that confer ...More
    March 25, 2015 Posted in News
  • Modifying Bacterial Lipids Can Label and Target Bacteria, Spare Healthy Cells
    Targeting deadly, drug-resistant bacteria poses a serious challenge to researchers looking for antibiotics that can kill pathogens without causing collateral damage in human cells. A team of Boston College chemists details a new approach using a "warhead" molecule to attack ...More
    March 12, 2015 Posted in News
  • Link Identified Between Virus Recognition, Destruction in Bacterial Immune System
    An immune system that helps bacteria combat viruses is yielding unlikely results such as the ability to edit genome sequences and potentially correct mutations that cause human disease. University of Georgia researchers Michael and Rebecca Terns were among the first to ...More
    March 2, 2015 Posted in News
  • Virus-Cutting Enzyme Helps Bacteria Remember a Threat
    Bacteria may not have brains, but they do have memories, at least when it comes to viruses that attack them. Many bacteria have a molecular immune system which allows these microbes to capture and retain pieces of viral DNA that they have encountered in the past, in order ...More
    February 23, 2015 Posted in News
  • Bacteria Connect to Each Other and Exchange Nutrients
    Bacteria usually live in species-rich communities and frequently exchange nutrients and other metabolites. Until now, it was unclear whether microorganisms exchange metabolites exclusively by releasing them into the surrounding environment or whether they also use direct ...More
    February 23, 2015 Posted in News
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