Articles tagged with Bacteria
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
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Researchers have identified three types of bacteria associated with natural purple photosynthetic bacteria that show strong anticancer efficacy. The bacteria can thrive in hypoxic tumor environments and trigger the immune system to kill tumor cells.
A low-cost antibacterial regimen can prevent acute radiation dermatitis, a common skin problem affecting up to 95% of radiation therapy patients. The treatment involves using chlorhexidine and mupirocin nasal ointment twice daily, with no adverse effects or severe cases reported.
A research team from Université Laval and Université Clermont Auvergne has shown that clouds harbor antibiotic resistance genes of bacterial origin. The concentrations vary widely, ranging from 330 to over 30,000 bacteria per milliliter of cloud water.
Researchers discovered a protein involved in membrane remodeling in cyanobacteria, structurally similar to eukaryotic membrane proteins, suggesting it may be the oldest known bacterial ancestor. The protein, SynDLP, was found to have structural properties that match those of eukaryotic dynamin.
A new study reveals that different species of bacteria colonize specific areas on diatoms, reflecting their metabolic properties. The findings provide insight into the complex interactions between algae and bacteria in marine environments.
Researchers found that probiotic bacteria Lactobacillus reuteri stimulates cancer-killing T cells by secreting indole-3-aldehyde, which activates a receptor in CD8 cells. A diet rich in tryptophan enhances the effect of immunotherapy on shrinking tumors and prolonging survival.
An international research team analyzed over 400 Omnitrophota genomes, uncovering details about their biology and behavior. The study found that Omnitrophota are hyperactive with high metabolic rates, possibly as predators or parasites of other microorganisms.
Scientists create modified E. coli bacteria that cannot be infected by viruses while minimizing gene escape into the wild. This breakthrough technology has implications for reducing viral contamination in biotechnology production, such as insulin production and biofuel manufacturing.
Researchers aim to optimize food bacterial detection using fluorescence detection, reducing detection time and improving sensitivity. The goal is to prevent spread of foodborne pathogens and provide a safe food supply.
The article analyzes digital microfluidics' (DMF) benefits for bacterial protocols, highlighting its versatility and potential applications in synthetic biology and diagnostics. DMF's electrostatic forces manipulate microdroplets on a plate, enabling sample preparation and nucleic acid detection.
A new Legionella species, Legionella bononiensis, has been identified in a hotel facility in northern Italy. The discovery was made by researchers from the University of Bologna using genetic sequencing and mass spectroscopy techniques.
Researchers developed a mathematical model of bacterial movement that includes cell division and death. The model predicts bacteria can form colonies through travelling waves of concentrated 'packages' of bacteria.
A new study suggests that an orbiting space probe could provide definitive answers about the presence of life on Enceladus' ocean. The team mapped out how a hypothetical mission could gather data from the moon's plumes, which are thought to contain organic molecules and methane.
Researchers have created a deep red, antimicrobial lipstick using cranberry extract, which inactivates viruses, bacteria, and fungi within minutes. The novel formula could provide protection against a range of disease-causing microorganisms.
Researchers developed a new way to study the sensory system used by pathogenic bacteria to infect humans. They screened thousands of peptides against a bacterial sensor and discovered 13 new human antimicrobial peptides (AMPs) that activate the sensor. The findings suggest an arms race between humans and bacteria, with each evolving ne...
Researchers developed magnetic microrobots that can bind and isolate S. aureus from milk, improving dairy safety. The 'MagRobots' use antibodies to target the bacteria, allowing for efficient pathogen isolation while preserving naturally occurring microbes.
Researchers at Karolinska Institutet have identified the most common bacteria found in severe oral infections, shedding new light on the association between oral health and systemic diseases. The study found that certain bacterial infections can spread to other parts of the body, highlighting the importance of understanding the role of...
Researchers have found that hypermucoviscous K pneumoniae strains carry higher rates of virulence genes and are less responsive to conventional drugs. These strains are thicker and stickier than previous strains, making them more challenging to treat with antibiotics.
Researchers at the University of Copenhagen develop a low-fat, more sustainable whipped cream alternative using lactic acid bacteria as building blocks. The bacteria-based foam can be whipped, peaks up, and retains liquid, making it a potential game-changer in the food industry.
Research at Karolinska Institutet shows that people with diabetes have lower levels of psoriasin, a key peptide that weakens the bladder's protective barrier function. This increases the risk of urinary tract infections. Oestrogen therapy may help regulate the immune response to UTIs in patients with diabetes.
A study published in Frontiers in Immunology found that Japanese herbal medicine DKT reduces colitis severity by preventing gut bacteria loss and increasing immune cells. It restores Lactobacillus levels and promotes type 3 innate lymphoid cells, alleviating inflammatory responses.
Researchers at KAIST have developed a method to produce lutein in E. coli bacteria using glycerol as a cheap carbon source. The production process involves systems metabolic engineering and substrate channeling to overcome bottleneck enzymes that inhibit lutein biosynthesis.
Brazilian researchers have identified bioactive compounds in a marine sponge that killed antibiotic-resistant bacteria, paving the way to develop new drugs. The substances proved capable of eliminating bacteria such as Escherichia coli and Staphylococcus aureus, which are responsible for many hospital-acquired infections.
Gut bacteria produce inositol lipids, vital for cellular processes in humans, and these substances impact the symbiosis between bacteria and their hosts. The discovery sheds light on how gut bacteria thrive in their human hosts.
Researchers at Tokyo University of Science have developed a fast and facile synthesis method for antibacterial amino acid Schiff base copper complexes using microwave irradiation. The new technique produces high-purity products with promising antimicrobial activity, overcoming the challenge of long synthesis times.
A new research group led by biologist Dr. Michael Gerth will investigate the interactions between bacteria and insects, with a focus on how bacterial DNA changes when transferred from one species to another. The team aims to identify successful host transfer strategies and understand environmental factors influencing these processes.
A study found that Pseudomonas bacterium rapidly develops resistance to Colistin due to a gene called pmrB, which mutates at an extremely high rate. This allows the bacteria to adapt to changing immune system conditions and survive antibiotic treatment.
A team of researchers from Osaka University successfully established a mouse model that can reproduce the severe and persistent cough of pertussis. They found that pertussis toxin, Vag8, and lipooligosaccharide are key bacterial factors involved in inducing coughing, which ultimately leads to bradykinin and TRPV1 signaling.
Researchers discover medusavirus undergoes four stages of maturation within host cells, with unique particle structures and DNA-protein exchange mechanisms. The findings provide new insights into giant viruses' biology and behavior.
Researchers at the University of Minnesota have discovered how bacteria swim through complex fluids, shedding light on their movement in real-life situations. The findings could lead to new treatments for bacteria-causing diseases and design bacteria-based systems for delivering drugs into the human body.
A study found that Listeria monocytogenes survives better at lower storage temperatures in both cured and soft cheeses. The bacteria can thrive in these conditions, posing a risk to public health despite refrigeration.
Scientists at Albert Einstein College of Medicine have developed a novel therapeutic strategy that uses bacteria to deliver tetanus toxin into pancreatic tumor cells, inducing an immune response and killing the cancer. The treatment has shown promise in reducing cancer metastases by 87% and increasing mouse lifespan by 40%.
Researchers at Northwestern University have developed a new technique to break down polyester plastic waste into its fundamental components. This process, called upcycling, has the potential to remove microplastics from rivers and oceans.
Scientists develop first system allowing two unrelated organisms to communicate via chemical signals, with potential applications in disease treatment and cell behavior modification. The nano-translator uses silica nanoparticles to react with glucose and phleomycin, enabling bacteria and yeast to exchange messages.
Researchers found that desert microbes produce nitrous oxide (N2O) emissions in arid soils after rain, contradicting the long-held assumption that it comes from fertilized agricultural fields. The study reveals a new source of nitrogen pollution in deserts, driven by fossil fuel combustion and industrial processes.
Researchers analyzed expanded genetic markers to estimate evolutionary distance between Archaea and Bacteria, finding a long branch length that separates the two domains. The study suggests that conventional methods may underestimate true branch length and diversity of Archaea.
A new bacterial strain, Noda2021, belonging to Candidatus phylum Dependentiae has been isolated and sequenced, revealing its genetic material and potential ecological significance. This discovery sheds light on the diversity of microorganisms in Japan's microbiological hotspots.
Researchers found that nitrate triggers Salmonella bacteria to switch from a sessile, biofilm lifestyle to a motile, free-swimming lifestyle in the intestine. This switch enables the bacteria to cause active infection and establish transmission to a new host.
Beneficial gut microbes transfer genes to acquire vitamin B12, increasing their ability to survive. This process, called bacterial sex, allows them to form a tube that DNA can pass through to another cell, demonstrating the horizontal gene exchange among microbes.
Researchers at Nagoya City University developed a novel approach for surface disinfection using harmless visible light, inactivating bacteria and viruses. The study's findings suggest that photothermal effects caused by pulsed laser irradiation can instantly destroy pathogenic microorganisms.
Researchers at the University of Copenhagen have discovered that resistant bacteria can hide resistance genes in inactive bacteria within biofilms, creating a reservoir of resistance that can be drawn upon when antibiotics are not present. This new understanding challenges the long-held assumption that resistant bacteria lose their res...
Engineered biofilms made of E. coli bacteria exhibit emergent drug resistance properties when printed using the new technique. This study provides valuable insights into harnessing the beneficial aspects of biofilms while combating their negative effects, potentially leading to breakthroughs in medicine and materials science.
A research team has identified a bacterium responsible for producing palmerolide A, a melanoma-fighting compound found in Antarctic sea squirts. The discovery could lead to the development of naturally-derived treatments for skin cancer.
Researchers have discovered a specific type of gut bacteria in bees that can improve memory, with bumblebees showing enhanced memory when fed this bacteria. The study suggests a causal link between the gut microbiome and cognitive abilities, opening up possibilities for similar effects in humans.
A study by Anglia Ruskin University has identified potentially dangerous Pseudomonas bacteria in 21% of wild bird faeces collected from locations near the River Cam. The bacteria, which can be passed on to humans through cross-contamination, were resistant to multiple antibiotics.
Researchers at Karolinska Institutet have discovered a new group of small antibacterial compounds that inhibit the formation of bacterial cell walls, showing promise against antibiotic-resistant strains. The molecules work by binding to lipid II, a crucial molecule for bacterial cell wall construction.
Researchers have identified specific skin microbiome bacteria and their pathways as contributing to ageing skin. The study, published in PLOS ONE, used a novel approach to chart host-microbe co-metabolism in skin aging.
Researchers found that levels of REG3G, a natural antimicrobial molecule, fluctuate on a circadian rhythm prompted by resident gut bacteria. This cycling has significant consequences for the ability to fight off infection, with higher bacterial burdens and rates of death when exposed at sunset.