Researchers found that competition between rival bacteria can cause deadlier forms of bacteria to evolve, making them more deadly when they enter the bloodstream. This can lead to serious diseases like pneumonia and meningitis.
Scientists have found antibiotic-resistant bacteria in seven species of sharks and redfish, with the highest occurrence rates in nurse sharks from Belize and Florida Keys. The study highlights a growing problem for human health due to the presence of multidrug-resistant bacteria in marine environments.
Researchers discovered how bacteria aid digestion and enhance immune function by binding to B lymphocytes. This finding suggests the possibility of using bacterial spores to treat people with weakened or undeveloped immune systems.
Researchers developed a biosensor to study cell division in bacteria, finding that the regulatory messenger c-di-GMP is distributed unevenly between swimming and stay-put cells. This asymmetrical distribution affects enzyme production and cell function, with implications for bacterial behavior and disease.
Scientists have found a way for pathogenicity islands to detect viruses and eliminate repression, allowing them to transfer virulent genes to other harmless bacteria. This discovery could lead to new treatments for bacterial infections and diseases caused by toxins.
A three-year study found that lab-evolved bacteria colonized better and adapted to the mouse gut, leading to a significant increase in bacterial density. The diverse bacterial population showed evolutionary adaptations, including increased resistance to cell death.
Researchers found several new bacteria originating in the mouth can travel through the blood to cause an inflammatory reaction in the placenta and lead to health issues such as miscarriages and stillbirths. Oral bacteria that colonize in the placenta can stimulate an inflammatory response leading to cervical and membrane weaknesses and...
A new photoprotein, proteorhodopsin, allows marine bacteria to harness sunlight energy and survive periods of starvation. This process enhances their survival in nutrient-depleted ocean environments.
A chemical compound, when combined with antibiotics, effectively destroys biofilms produced by antibiotic-resistant bacteria. The compound also re-sensitizes resistant bacteria to antibiotics, making it a promising treatment for difficult-to-treat infections.
Bacteria have a CRISPR defence system that can be passed down to future generations, providing immunity against viral attacks. This system could be exploited to give bacteria 'flu jabs' to protect them against real-world threats, increasing industrial productivity and reducing costs.
Bile secretions in the small intestine send signals to disease-causing gut bacteria, enabling them to adapt and prepare to cause disease. The presence of bile triggers genes that increase iron uptake, a crucial nutrient for bacterial growth.
Bile helps E. coli O157:H7 bacteria survive by increasing iron uptake, while reducing attachment to host cells in the large intestine. This study could lead to better protection of food from contamination and a deeper understanding of bacterial disease mechanisms.
A new two-in-one test can detect both E. coli bacteria and its toxins, reducing foodborne illness and product recalls. The test cuts waiting time to just 24 hours, improving sensitivity and enabling early detection of contaminated products.
Researchers at UT Knoxville discovered that Azospirillum brasilense has 48 receptors, enabling it to detect changes in its environment and make complex decisions. This understanding could lead to tailored medicines and new agricultural applications.
Researchers at UNC have discovered a single calcium atom controls bacterial motility required for infection. By blocking this site, the bacteria can't move, stopping its ability to establish infections like meningitis. The finding identifies a key step in bacterial infection and could lead to new drug targets.
Using disinfectants can promote the growth of antibiotic-resistant bacteria, such as Pseudomonas aeruginosa. This adaptation enables the bacteria to survive and infect patients even without exposure to antibiotics.
Common bacteria can turn microgears by swimming in a suspended solution, providing insights into design of hybrid biomechanical systems driven by microorganisms. The speed and direction of gear rotation can be controlled by manipulating oxygen levels.
Researchers from Tel Aviv University used bacterial decision-making to advise against automatic swine flu shot uptake. Bacteria communicate through chemical signals and consider risks before making decisions, suggesting a cautious approach for humans. They propose that only individuals with widespread contact should receive the vaccine.
Scientists have discovered how bacteria survive in rock environments, enabling the potential for bio-batteries powered by animal waste and cleaning up oil spills. The 'rock-breathing' bacteria can construct tiny biological wires to conduct electrons to minerals, generating electricity.
Researchers are gaining insights into how Gram-negative bacteria infect host cells and spread antibiotic resistance. The crystal structure of the outer membrane part of type IV secretion systems has been revealed, offering potential targets for novel antibiotics.
Scientists have crystallized a protein that enables beneficial bacteria to bind to the gut lining, interacting with cells and exerting their activity. The discovery opens new avenues of research into gut health and highlights the importance of molecular design in selecting probiotics.
UT Southwestern researchers discovered that bacteria employ genetic circuits to generate diversity, increasing their chances of survival in unpredictable environments. This diversity allows individual bacteria to thrive under certain conditions, while others struggle, much like a diversified investment portfolio.
Researchers at the University of Edinburgh discovered a strain of Staphylococcus aureus bacteria jumping from humans to chickens, marking the first clear evidence of bacterial pathogens crossing from humans to animals since domestication. This finding has significant implications for poultry farming and food security.
A study published in PLoS ONE identifies the genetic mechanisms behind L-form bacteria formation and survival. Researchers found that three groups of mutants with varying degrees of defect in L-form growth were linked to pathways related to cell envelope stress, DNA repair, iron regulation, and outer membrane biogenesis.
Research finds that pathogenic E. coli are common in Michigan and Indiana streams, even with low fecal indicator bacteria concentrations. The study suggests that current methods for determining water quality may not accurately predict the presence of harmful pathogens.
A Missouri University researcher is studying sulfate-reducing bacteria that can convert toxic uranium into nearly insoluble uraninite, reducing contamination and environmental costs. The bacteria's ability to cleanse water is being explored, with potential applications for heavy metal pollution from storage tanks and industrial waste.
A team of researchers discovered that virus-infected bacteria in pea aphids can provide protection against parasitic wasps. In laboratory experiments, about 90% of aphids carrying infected bacteria survived wasp attacks, compared to nearly no survival for those without the infection.
Researchers at Delft University of Technology discovered that bacteria can retain motility in surprisingly narrow channels, growing and dividing instead of swimming. This new phenotype may be more common than thought, with implications for membrane filters and medical applications.
Scientists have sequenced the genome of magnetotactic bacteria, revealing common gene clusters and a key to unlocking new technologies. The study could accelerate biotechnology and nanotechnology research with applications in electromagnetic tapes, drug delivery, magnetic resonance imaging, and cell separation.
Research reveals that bacteria's survival rate increases when resistant to two antibiotics, contrary to expected outcomes. This discovery highlights the importance of understanding genetic interactions in determining antibiotic resistance.
Case Western Reserve researcher Yiping Han aims to understand how to build roadblocks against harmful oral bacteria that can turn deadly in an unborn child. Her research has discovered an adhesin protein molecule that allows bacteria to connect with receptors on epithelial cells and endothelial cells of the placenta.
Researchers found that a key factor in quorum sensing is the ratio of bacteria to environment volume, regulating biological functions like bioluminescence and nutrient foraging. This discovery provides insights into fundamental design of quorum sensing systems and enables engineering of synthetic gene circuits.
Scientists have developed a nano-sized agent that kills bacteria on implanted devices by penetrating their defensive wall and eliminating the threat. The discovery holds promise for treating infected implants with no effective antidote.
A new study by Uppsala University researchers has discovered nearly half of Mediterranean gulls in southern France exhibit antibiotic resistance. The bacteria in question are capable of spreading rapidly and have broken down powerful antibiotics.
Researchers studied DNA from 1,930 pneumococcus strains and found a link between bacterial recombination and antibiotic resistance. Bacteria that undergo sex with other species are more likely to develop resistance to antibiotics, making treatment increasingly difficult.
Researchers at the University of Warwick have discovered a synthetic DNA binding compound that effectively kills bacteria within two minutes. The compound's ability to target and coil DNA makes it a promising approach to combatting drug-resistant bacteria.
Researchers at Texas A&M University have found that certain types of bacteria integrate invading DNA into their genetic makeup to increase their chances of survival. This process allows the bacteria to produce diverse progeny, which is essential for dispersal and adaptation to new environments.
Researchers found that bacteria in mosquito's gut inhibit infection with Plasmodium falciparum, the malaria parasite. The study suggests that the microbial flora of mosquitoes stimulates immune activity protecting them from malaria infection.
A new study by Uppsala University reveals a mechanism to delay the development of antibiotic resistance in bacteria. Inhibiting drug efflux pumps can mask the effect of mutations that reduce antibiotic binding, providing clues to delaying resistance development.
Researchers at Karolinska Institutet discovered tufted bacteria can attach to premature babies' skin, causing infection. The bacteria's unique hair-like structures facilitate adhesion, while LL37 antimicrobial peptide helps inhibit growth.
Researchers found that macrophages focus reactive oxygen species (ROS) on targets outside the cytoplasm to kill bacteria. The study shows that superoxide dismutases in bacterial periplasm protect bacteria from ROS, suggesting a new mechanism for macrophage-bacteria interaction.
A new study by OHSU School of Dentistry found that patients with self-ligating orthodontic brackets retained significantly fewer oral bacteria in plaque compared to those with elastomeric brackets. The researchers also developed a rapid and reliable method for quantifying oral bacteria using ATP-driven bioluminescence.
Researchers developed a targeted antibiotic to kill Porphyromonas gingivalis, a cause of gum disease, without harming other beneficial bacteria. This approach aims to provide new treatments for oral diseases and prevent drug resistance.
The discovery of slow-growing Mycobacterium tuberculosis bacteria in TB patients' lungs may lead to the design of new anti-TB drugs. These slowly growing bacteria are non-responsive to treatment with isoniazid, contributing to prolonged treatment times and relapse rates.
Researchers at Uppsala University mapped the genome of a bacterium that manipulates insect sex ratios, revealing high frequencies of gene exchange within this group. The study's findings may lead to development of eco-friendly pesticides using these bacteria.
Researchers at the University of Michigan discovered a tiny protein called HdeA that protects disease-causing bacteria from stomach acid. This protein unfolds and becomes more flexible in response to acid, but unlike other proteins, it activates when unfolded, allowing it to bind and adapt to damaged proteins.
Researchers at HZI have identified a molecular signal pathway that enables E. coli bacteria to adhere to host cells and form pedestals, allowing them to reproduce on the cell surface without being flushed from the intestine. The discovery sheds light on how pathogenic bacteria develop complex processes in the host.
Researchers have discovered how Shewanella bacteria 'breathe' toxic metals, converting them into non-toxic forms. This process could potentially clean up contaminated nuclear waste sites by utilizing the bacteria's ability to extract energy from metal oxides.
Bacteria in biofilms evolve to become more resilient with age, resisting antibiotics and outcompeting younger cells. This study provides evidence of natural selection in a single species bacterial biofilm, offering insights into the emergence of dominant microbial populations.
Researchers found that the Bt toxin loses its potency against certain moth and butterfly species unless the insects have specific gut bacteria present. The study suggests that these beneficial bacteria can make the toxin lethal to the insects, highlighting the importance of their presence in pest management.
Scientists at Washington University School of Medicine found that bacteria causing urinary tract infections produce compounds called siderophores to steal iron from their hosts. These tools provide a potential way to target bad strains of bacteria for eradication without affecting good strains. The discovery could lead to new treatment...
Researchers found that exposing bacterial colonies to the same chemical signals they use to fend off competition causes them to kill each other, reducing their population. This strategy is unlikely to develop resistance and may offer a new hope for fighting bacterial infections.
A study published in the Journal of Clinical Microbiology found that 60% of bacteria present in women with intra-amniotic inflammations were missed by traditional culture testing. The researchers identified a comprehensive list of microbial species using new DNA methods, including harmful bacteria not previously linked to preterm birth.
Researchers at the University of Illinois and Massachusetts have found a way to target a bacteria's evolutionary machinery, programming its own death. The synthetic antimicrobial depends on phosphoethanolamine lipids in bacterial membranes.
An experimental TB drug called PA-824 has been found to work by producing nitric oxide gas, which kills the bacteria. The discovery could lead to the development of new drugs against other disease-causing bacteria, as humans lack the bacterial enzyme needed for the drug's effect.
Scientists have identified new species of bacteria that can grow at low temperatures and spoil raw milk even when refrigerated. The discovery highlights the complex microbial population of raw milk and underscores the importance of developing tools to monitor cold-tolerant bacteria.
A CU-Boulder study found that women's hands harbor a significantly greater diversity of microbes than men, with an average of 150 different species detected. The researchers also discovered that the diversity of bacteria on individual hands was not significantly affected by regular hand washing.
New research finds bacteria can directly cause human blood to clot by forming clusters, a process previously thought lost in vertebrate evolution. This discovery may lead to new clinical methods for treating sepsis and anthrax, improving understanding of coagulation during bacterial infections.
Scientists discovered bacteria in Vetiver grass roots that enhance essential oil production while altering molecular structure. The bacteria change the oil's properties to include insecticidal, antimicrobial, and antioxidant characteristics.
Scientists have developed a rapid new technique called Rapid Virulence Annotation (RVA) to identify toxins and virulence factors made by bacteria that allow it to infect different types of organisms. This discovery could lead to new vaccines and anti-bacterial drugs, as well as help prevent diseases caused by disease-causing bacteria.