Articles tagged with Bacterial Growth
Interactions between gut bacteria may limit antibiotics' effectiveness in treating C. difficile infections, a study suggests. Researchers found that certain bacterial species make the bacterium tolerant to metronidazole and increase its abundance.
Research reveals that certain bacteria can replace essential lanthanides with actinides to sustain their metabolism. The findings suggest a possible role for these bacteria in decontaminating areas contaminated with radioactive elements or separating lanthanides and actinides for analytical purposes.
Researchers engineered bacteria to visually record environment using swarm patterns and deep learning. The system can detect pollutants and toxic compounds in the environment, enabling a low-cost detection and recording system.
Researchers identify OmpU protein variants associated with antimicrobial resistance in Vibrio cholerae bacteria. Understanding the evolutionary origins of AMR can inform the development of effective therapeutics against resistant infections.
Researchers used machine learning to identify bacterial environmental pH preferences from genomic data, enabling quicker growth of finicky bacteria in labs. This technique may also improve agricultural practices by ensuring inoculants are adapted to local pH levels, supporting native prairie restoration and plant growth.
Lutz Grossman aims to create a protein-rich food source using hydrogenotrophic bacteria, which require no agricultural inputs. His goal is to produce a sustainable alternative to traditional protein sources, addressing global food security concerns.
A new liposome-based method aims to kill periodontitis-causing leukotoxin while protecting immune cells, providing an alternative treatment for aggressive gum infections. The approach has potential applications against a range of bacteria and could help combat antibiotic resistance.
Researchers at UMass Amherst microbiologists have identified an enzyme involved in TB pathogen's survival and growth. The discovery offers a potential target for drug therapies for the deadly disease, which has few effective treatments and caused over 1.6 million deaths worldwide in 2021.
Researchers tracked the evolution of Staphylococcus aureus in patients with eczema, discovering rapid mutations in a gene that enables the bacteria to grow faster on the skin. These findings could lead to targeted treatments by targeting variants of S. aureus associated with eczema symptoms.
The study found that antibiotics slow down biofilm growth and QS molecule production across both strains, with surface type having a significant effect on the non-mucoid strain. The patterned structure was associated with longer latencies before expression of QS molecules were at their peak.
Researchers successfully add purified curcumin to probiotic yogurt, preserving its dissolved form and enhancing its health properties. The study shows that the curcumin inhibits yeast, fungi, and bacteria growth while maintaining the recommended levels of beneficial lactic acid bacteria.
A team of researchers at KAUST has developed a biological method to produce size-controlled palladium nanoclusters anchored on the surface of Geobacter sulfurreducens, outperforming benchmark catalysts in water-splitting reactions. This eco-friendly approach could provide a sustainable solution for high-performance catalysis.
A recent study highlights the perils of bacteria's secret antimicrobial resistance, which can be difficult to detect using traditional methods. Researchers are exploring new approaches, such as genetic analysis, to identify and prevent the spread of these resistant strains.
A study by researchers at TUM found that gut bacteria play a crucial role in liver regeneration. The microbiome produces short-chain fatty acids, which are essential for liver cell growth and division. In mice treated with antibiotics, liver regeneration was delayed or not possible, but a
Scientists create wearable sensors using biodegradable nanowires that can detect various chemical tracers, including those associated with asthma and kidney disease. The breakthrough represents a new paradigm in electrical engineering, offering a sustainable alternative to traditional silicon-based nanowires.
Bacteria can survive antibiotics without acquiring new genes or mutating existing ones by maintaining high electrochemical energies. These high-energy cells exhibit a wide range of energy levels despite being in a state of arrested growth, enabling them to adapt and spread rapidly.
A study by Dartmouth College researchers found that bacteria can form protective clusters with rival species, making it harder to kill harmful bacteria. This discovery highlights the importance of studying multispecies biofilm structures and may impact the development of bacteriophages and predatory bacteria as antimicrobial alternatives.
The study reveals unexpected mechanisms that enable Aromatoleum aromaticum EbN1 T to adapt to changing environments. By analyzing its metabolic network, researchers developed a model to predict growth under diverse conditions.
A study by Noa Barak-Gavish and colleagues revealed that Roseobacter bacteria undergo a lifestyle switch from coexistence to pathogenicity when interacting with phytoplankton. This switch is triggered by the production of chemical compounds, allowing the bacteria to 'eat-and-run' in search of suitable hosts.
Researchers at the University of Cologne discovered that bacterial membrane potential changes during biofilm formation, correlating with increased antibiotic tolerance. The study found characteristic patterns of polarization that evolve in space and time, which are linked to a change in oxygen availability.
Researchers have developed shortwave-infrared and thermal imaging techniques to accurately diagnose active dental caries. SWIR-based approach shows superior results in detecting lesions, while thermal imaging proves less effective.
Researchers discovered that methanotroph Methylococcus capsulatus Bath can grow in the presence of small amounts of H2S using an enzyme switch. The study found that at 0.75% H2S concentration, bacteria switch from mxaF to xoxF, increasing methane consumption and mitigating greenhouse effects.
Researchers from Washington University in St. Louis and Purdue University used single-cell data to develop a new framework for understanding the relationship between cell growth, DNA replication, and division in bacteria. They found that individual cells can exquisitely coordinate these processes, despite the 'noisiness' of each process.
A study analyzed the potential of a bacterium to combat coffee rust, a major challenge for Brazilian coffee growers. The researchers found that the bacterium produces antibacterial and antifungal compounds, as well as proteins associated with protection against water stress, making it a promising candidate for biological control.
Scientists have discovered that interactions between bacterial growth rate and energy levels can explain the inoculum effect, a mechanism by which bacteria tolerate antibiotics. Providing different nutrients to bacteria with varying growth rates and energy levels can eliminate this effect.
A new study at the University of Tokyo has mapped the evolution and process of natural selection in Escherichia coli bacteria, creating fitness landscapes that help understand drug resistance and potential treatments. The researchers hope their results will be useful for predicting and controlling E. coli and other bacteria.
Researchers have uncovered a new mechanism of antibiotic resistance in Group A Streptococcus bacteria, making antibiotics ineffective and potentially leading to poor outcomes. The discovery highlights the complexity of understanding AMR and emphasizes the need for rapid diagnostic tools and therapeutics.
Scientists at the University of Illinois Urbana-Champaign have created alginate hydrogels that can endure the growth of bacteria, allowing them to synthesize essential enzymes. The modified hydrogels provided a stable platform for bacterial colonies to form and grow, producing important compounds like nisin.
Researchers developed a 'clean-label' method to minimize spoilage problems in fresh pasta, adding 30 days to its shelf life. The technique uses modified atmosphere packaging and bioprotective probiotic cultures to control microbial growth.
Research reveals that common gut bacteria enhance cocaine effects in mice by consuming glycine, leading to behavior abnormalities. Supplementing glycine or using a genetically modified bacteria reduces response to cocaine, demonstrating its role as an addiction mediator.
Researchers from Johannes Gutenberg University Mainz developed ceria nanoparticles to silence bacteria by modifying signaling molecules, preventing biofilm formation. This approach mimics nature's defense system and has potential for creating antibacterial surfaces without resistance.
A Princeton team invented a way to observe bacteria in 3D environments, finding that colonies consistently form intricate, branching shapes resembling broccoli. They discovered two factors causing these shapes: nutrient and oxygen availability, and the colony's internal structure.
Scientists are conducting a first-of-its-kind study to investigate the origin of psychedelic compounds in fungi, including psilocybin found in 'magic mushrooms'. The research aims to understand the evolution of these compounds and their potential applications in medicine and conservation.
Researchers found that horizontal gene transfer can accelerate bacterial adaptation under most growth conditions, but not all. By analyzing the fitness effects of gene transfer, they can predict when it will provide an advantage.
Scientists at the University of Bath have discovered a novel polyamine that destroys MRSA superbug Staphylococcus aureus by disrupting its cell membrane, rendering it susceptible to antibiotics. The compound is also effective against biofilm and has shown promise as a potential new treatment option for antibiotic-resistant infections.
Researchers have isolated a novel bacterial species, HS-3, that displays complex multicellular behavior and a reversible two-phase life cycle. The discovery reveals a previously unknown mechanism for the emergence of multicellularity in bacteria, suggesting that environmental factors played a crucial role.
Researchers developed hydrophilic slipper surfaces that are both extremely slippery and water-attracting, countering conventional wisdom. These SLIC surfaces have potential applications in biomedical technologies and condensers, where they offer anti-fouling properties and improved efficiency.
Research reveals that gut flow velocity directly affects nutrient absorption and bacterial levels, with optimal conditions for each. The study suggests the gut adjusts its flow speed to regulate these processes in response to meal intake or fasting, potentially preventing diseases such as chronic fatigue and poor nutrient absorption.
Researchers at Duke University developed a new AI message decoder based on simulated bacterial growth patterns, forming corresponding letters. The method uses specific initial conditions to create unique patterns for each letter, offering a novel encryption approach.
Researchers at Rice University have created macroscale, modular materials from engineered bacteria that can self-assemble and perform various functions. The materials, dubbed BUD-ELMs, contain living cells that allow them to grow, repair, and respond to external stimuli.
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.
Researchers developed a light-based therapy, photodynamic therapy (aPDT), to combat antibiotic-resistant bacteria. The treatment showed promise in weakening bacteria, allowing lower doses of current antibiotics to effectively eliminate them.
A study by the University of the Basque Country detected Arcobacter species in 22.3% of analyzed food samples, with A. butzleri being the most abundant. The bacteria were found to possess virulence genes and could cause gastrointestinal disorders. Biofilm formation on food contact surfaces was also observed.
A study found that certain bacteria grow more efficiently on plastic bags than leaves and twigs, breaking down carbon compounds in the process. The bacteria's growth is stimulated by plastic pollution, which primes them for rapid breakdown of other natural carbon compounds.
Researchers have designed a new anaerobic reactor using polyurethane foam, reducing nitrogen removal costs in Brazil. The system achieves high nitrogen removal efficiency by creating an environment that optimizes denitrification.
Researchers at University of California - San Diego use electrical shocks to manipulate the demographic of bacterial communities, changing the ratio of cell types and controlling biofilm development. This technology offers a new tool to destabilize biofilms in healthcare and agriculture settings.
Scientists developed a natural antibacterial texture inspired by insect wings, killing up to 70% of bacteria. The innovation aims to reduce food waste, particularly in meat and dairy exports, and extend the shelf life of packaged food.
Researchers have discovered that living filtration membranes made from kombucha cultures can resist fouling and maintain faster filtering rates compared to conventional polymer membranes. This breakthrough could lead to an inexpensive, biodegradable, and effective way to treat water, tackling issues such as biofilm formation and clogging.
Researchers found that smart windows with dynamic tinting can completely disinfect surfaces within 24 hours, reducing bacterial growth rates and viability. In contrast, traditional windows with blinds blocked almost all daylight, promoting contamination on glass, plastic, and fabric surfaces.
Researchers found that half of Pseudomonas syringae strains benefited from the presence of aphids, but only the honeydew itself boosted bacterial populations. The study suggests using this phenomenon to develop alternative pest control methods.
Researchers developed an AI program that accurately identified patients at risk of serious illness due to blood infections, with an accuracy rate of 82%. The technology has the potential to serve as an early warning system for doctors, enabling them to rank patients based on their risk level.
Researchers revealed that β-lactam antibiotics like penicillin kill MRSA by forming small holes in the cell wall, which gradually enlarge and lead to bacterial death. This discovery provides new avenues for treatment developments against antibiotic-resistant superbugs.
Scientists at Tokyo University of Science discovered endophytic bacteria that can survive extreme conditions within passion fruit seeds. The bacteria were isolated from seedlings grown from cut seeds and found to possess biocatalytic activities related to the metabolism of secondary metabolites, such as resveratrol and piceatannol.
Researchers developed a microwave sensor to measure antibiotic resistance, reducing wait times and costs. The sensor can detect bacterial growth variations before visible cues, allowing for fine-tuned antibiotic dosing.
Researchers found that only about 30% of genes associated with aging control the body's internal clock, while the rest reflect the response to bacteria. Antibiotics extended fly lives by up to six days and altered gene activity in many hallmark aging genes.
A new protein analysis tool, called BGIS, can quickly assess protein function with no special equipment needed. This breakthrough could accelerate basic science and medical discoveries by identifying proteins' functions and regulating their activities.
A study suggests that oral bacteria like Fusobacterium nucleatum can promote the growth of harmful pathogens in the vagina, leading to bacterial vaginosis (BV). The research found that Fusobacterium may engage in mutually beneficial relationships with other vaginal bacteria, encouraging dysbiosis and BV features.
A Rutgers-Newark study discovered that lysozyme in the gut stimulates inflammation in some people with ulcerative colitis, leading to ulcers and sores in the large intestine. The study may help develop future treatments for inflammatory bowel disease by gaining insights into immune balance.
Researchers developed a bacterial genetic oscillator that records changes in microbiome growth patterns, providing an objective measurement of time. The system uses an oscillating gene circuit to track cell divisions and analyze bacterial growth rates, offering insights into the dynamics of the gut microbiome.
A University of Pennsylvania post-doc's new theory describes how factors regulating individual cell size influence the growth rate of entire bacterial populations. The model predicts oscillations in growth rates, providing a new mathematical framework for studying population dynamics.