Articles tagged with Bacterial Growth
Researchers discovered a mechanism that enables bacterial pathogens to assemble antibiotic-resistant 3D biofilms, which protect them from antibiotics and the immune system. The team found that adhesive pili form flat sheets linking bacteria together and shield them from hostile environments.
Researchers have identified optimal conditions for bacterial growth on hydrogels, finding that firmer, lower water content materials consistently slow bacterial expansion. The study's findings also reveal a selective mechanism at work, where negatively charged gels repel bacteria harbouring negatively charged groups.
Researchers mapped bacterial growth in 195 environments, revealing consistent links between growth patterns and ecological traits like habitat and distribution. The study's findings suggest that controlled experiments can uncover mechanisms of ecological and evolutionary adaptation.
Researchers at ETH Zurich and Stanford University quantified the number of molecules produced by gut bacteria that reach the human body daily. This knowledge helps understand how the gut microbiome influences health and behavior.
Researchers at Politecnico di Milano have developed a system that allows bacteria to sense light and convert it into electrical signals without genetic modification. This method has the potential to develop next-generation antimicrobial platforms and biocompatible 'bacterial robots' for targeted drug delivery.
Researchers have found new organisms that can capture carbon dioxide and clean pollutants from the environment. By exploring extremophiles in homes, scientists can gain insights into their unique characteristics and develop sustainable solutions.
Research at Max Planck Institute for Dynamics and Self-Organization explores how growth impacts cell migration. The study reveals a critical threshold of motility above which colony growth inhibits cellular movement, with implications for biology, tissue engineering, and medical research.
A new study at Stellenbosch University found that blocking the enzymes involved in glycolysis could cut off the malaria parasite's primary energy source and kill it. This approach has shown promise for developing new malaria drugs, particularly against resistant parasites.
Scientists have discovered a new bacterial strain, Bacillus thuringiensis RZ2MS9, that can enhance the growth of soybeans and corn when combined with rhizobia. This partnership reduces fertilizer use, saving Brazilian growers an estimated USD 15 billion annually.
A novel selective medium was developed to isolate Escherichia albertii, a previously uncharacterized species. The CT-PS-XR-MacConkey agar selectively differentiated E. albertii from other bacteria, including those in food samples. This finding has significant implications for the identification and study of this pathogen.
A new artificial intelligence-based method detects genetic markers of antibiotic resistance in bacteria, potentially leading to faster and more effective treatments. The method, called Group Association Model, uses machine learning to identify key mutations linked to drug resistance, reducing false positives and misdiagnoses.
Researchers at Vanderbilt University Medical Center discovered how C. diff converts a poisonous compound into a usable nutrient, increasing its competitive advantage in the infected gut. The findings point to novel therapeutic strategies, including targeting the TudS enzyme to preserve healthy gut microbiota.
Crew-9 astronauts conducted research on protein crystallization studies and a new drug for Alzheimer's, dementia, and Parkinson's. They also supported student-led experiments, contributing to the next generation of explorers.
Researchers have discovered a protein called MdfA that enables bacteria to shut down into dormant spores under extreme conditions. This process allows bacteria to survive in uninhabitable places and evade hospital cleaning, making them potentially deadly superbugs.
Researchers demonstrate a new technique for encapsulating beneficial bacteria that can be stored and applied to plants to improve growth and protect against pests. The technique enables customized probiotics for plants, allowing farmers to use these bacteria in conjunction with agrochemicals.
A study found that soil bacterial communities show increased antimicrobial resistance due to the presence of a predatory bacterium, Myxococcus xanthus. The researchers suggest that exposure to growth-inhibitory molecules released by M. xanthus leads to the enrichment of resistant isolates.
Researchers created laser-textured metal that stops bacteria from attaching, reducing biofilm buildup and making surface cleaning easier. The technique alters water-repellent properties of the metal, a key factor impacting bacterial growth.
A study by Durham University has shown that E-coli bacteria produce an enzyme breaking down nutrients from dead cells, offering a banquet for neighboring cells. This process demonstrates that death is not the end of programmed biological processes, which can evolve to function after death.
Researchers at Hokkaido University have successfully cultivated an ultrasmall bacterial strain that parasitizes methanogenic archaea, inhibiting their growth. This discovery represents the first successful cultivation of such bacteria and proposes a new phylum Minisyncoccota, advancing our understanding of microbial ecology.
Researchers from the University of Basel challenged the idea that persisters are responsible for antibiotic ineffectiveness. They found that nutrient starvation increases Salmonella resilience, making antibiotics less effective. This discovery could lead to more effective therapies against difficult-to-treat infections.
A University at Buffalo-led team has identified a strain of bacteria that can break down and transform at least three types of PFAS, as well as some of the toxic byproducts of the bond-breaking process. The bacteria, Labrys portucalensis F11, metabolized over 90% of perfluorooctane sulfonic acid (PFOS) after a 100-day exposure period.
Biofilm produced by Pseudomonas alcaligenes has unique structural properties and thermal stability, exhibiting antioxidant, emulsification and flocculation activity. The EPS can be used as a natural additive for the pharmaceutical and food industries with potential applications in developing sustainable or ecofriendly additives.
Scientists discover bacterial cells forming cable-like structures that intertwine like living gels. The cables, found to be thousands of cells long, continue to grow as long as the cells have nutrients.
A University of Houston study found that different genotypes of hemp have unique microbial communities that impact CBD production and fiber quality. The research, published in Nature, highlights the potential for microbiome diversity to inform more sustainable farming practices.
Researchers at UVA have developed computer models to target specific bacteria in specific parts of the body, reducing the chance of antibiotic resistance. This approach could lead to more effective treatments and reduce the need for broad-spectrum antibiotics.
Researchers from Tokyo Metropolitan University created nanostructured alumina surfaces with unprecedented antibacterial properties without hindering cell cultures. The technology promises a game-changer in regenerative medicine by enabling antibiotic-free cell culture and reducing the risk of antibiotic-resistant strains.
A new study by Professor Nurit Argov-Argaman at the Hebrew University of Jerusalem found that small milk fat globules promote beneficial bacteria like Bacillus subtilis, while larger ones trigger biofilm formation. The research highlights milk's natural protective mechanisms and potential to support gut health.
Researchers at Texas A&M University have developed a skin-like material that can mimic human skin textures and elasticity, simulating conditions for bacterial growth. The Ecoflex-based skin replicas can be used to test wearable sensors and improve catheter designs, potentially reducing the risk of catheter-related bloodstream infections.
A new study from the University of Illinois aims to determine the most effective risk management strategies for the produce supply chain. The researchers found that improved process controls, such as washing, provided a greater reduction in overall risk than additional product testing.
A new study finds that Enterococcus faecalis produces protective capsular slime when present with certain strains of pathogenic Escherichia coli, making E. coli more resistant in low-iron environments. This discovery could lead to the development of targeted therapies for specific dog and poultry infections.
Antimicrobial resistance is a growing threat in Detroit, requiring immediate attention from the community. Health experts recommend educating oneself about responsible antibiotic use and adopting practices such as hand hygiene and vaccination.
A new UC Davis Health study has uncovered the mechanisms by which Salmonella bacteria evade the body's natural defenses in the gut. The research found that Salmonella alters the gut's nutrient environment to fuel its replication in the large intestine, creating an imbalance that helps the pathogen survive. This new understanding could ...
Researchers at Tufts University discovered that TB bacteria maintain a consistent growth rate throughout their life cycle, defying expectations. The study also reveals new growth behaviors of TB bacteria, including the ability to grow from either end after division.
A new study by the University of Exeter and Wageningen found that Asaia bacteria accelerate the development of mosquito larvae, potentially boosting mass-rearing schemes. This could lead to more effective global health programmes against diseases like dengue, yellow fever, and Zika.
A new study led by Arizona State University researcher Michael Lynch explores the substantial energy demands required to maintain and evolve multicellular life. Multicellular organisms require a tenfold increase in energy compared to protists, highlighting how respiration and metabolic processes are crucial for advanced life forms.
Researchers investigate the role of mucin's protein and glycan components in supporting Akkermansia muciniphila's growth. Native mucin and its O-glycans promote growth, while bovine milk N-glycans inhibit it.
Researchers discovered that dividing bacterial cells adapt to crowded environments by slowing their growth, forming a pattern of concentric circles. This process can inform strategies for controlling the spread of harmful microorganisms, such as in infections or manufacturing.
Researchers have explored biomass-derived antibacterial agents as a sustainable alternative to conventional compounds. The study reveals the potential of these agents in various sectors, including cosmetics and healthcare, and discusses challenges and future perspectives for their application.
Researchers discovered that wastewater bacteria can break down plastic into small pieces called nanoplastics and use a specialized enzyme to further degrade it. The bacteria then use the broken-down plastic as a food source, providing new possibilities for developing bioengineering solutions to clean up difficult-to-remove plastic waste.
A team of researchers led by Julia Vorholt at ETH Zurich initiated laboratory partnerships between bacteria and fungi to study the beginnings of an endosymbiotic relationship. They found that when certain bacteria are passed on to the next generation of fungi through spores, the fungus adapts and becomes more inhabited.
Researchers have developed an antibody that can identify Campylobacter jejuni and inhibit its growth, reducing pathogenicity. The antibody targets a multiprotein complex essential for the bacteria's energy production, making it a potential target for therapy and vaccination.
A new study estimates that more than 1 million people died each year due to antibiotic-resistant infections between 1990 and 2021. The study predicts that this number could increase to nearly 2 million by 2050, with a significant age-related shift in the impact of AMR on children under five years old.
Researchers discovered that disrupting plant microbiomes can compromise a plant's immune system, leading to autoimmunity. Prebiotics could potentially support or reset the microbiome to maintain balance, reducing losses in food crops.
Researchers harvested climate-smart soybeans in a $5 million USDA project aiming to reduce GHG emissions while increasing crop production. The crop was grown using five climate-smart practices, including earlier planting and soil conservation.
Researchers discovered Corynebacterium matruchotii's unique cell division mechanism, enabling dense networks within dental plaque biofilms. This process allows the bacteria to explore their environment and form beneficial interactions.
Researchers have identified two compounds with strong antivirulence activity from actinobacteria in the Arctic Sea, targeting EPEC bacteria that cause severe diarrhea. The compounds inhibit virulence factor formation and binding to host cells, reducing disease severity and potential for resistance.
A researcher at UC Berkeley has discovered that fungi can transform indigestible plant material into digestible, nutritious food in about 36 hours. The Neurospora fungus is being used to create tasty morsels from food waste, including grain covered with orange Neurospora and moldy bread.
A subset of CD4 T cells create an anti-inflammatory environment within the lung tissue, protecting against TB reinfection by limiting bacterial growth and disease severity. The discovery complements previous research on protective immune T cells in controlling TB infection, suggesting a potential key to improving existing vaccines.
Researchers at ISTA discovered that misaligned protein filaments 'die' and re-assemble to form a well-aligned ring structure essential for bacterial cell division. This mechanism could lead to the development of synthetic self-healing materials.
Researchers developed an approach to boost cellulose production in bacteria by inducing mutations through UV-C light. This method produced bacterial variants that generate up to 70% more cellulose than the original form, paving the way for industrial-scale production of sustainable materials.
A study by Michigan State University reveals that certain proteins and peptides in the nasal and oral environments create lubricants for bacterial colonies to move towards vulnerable sites. The discovery provides new insights into how staphylococcus bacteria spread, shedding light on conditions that accelerate their movement.
Researchers used interferometry to study biofilm growth and found that the contact angle with the substrate plays a key role in determining fitness. The team discovered that the shape of the biofilm's edge, which resembles a spherical cap, is influenced by this geometry.
Patients with mantle cell lymphoma are more vulnerable to other diseases and infections due to intensive chemotherapy and a weakened immune system. A large-scale national study found that MCL patients had twice as many infections as reference subjects, with common causes including influenza and urinary tract infections.
Researchers at MIT have developed a new way to make microbes hardy enough to withstand industrial processing, high temperatures, radiation, and long-term storage. The method involves mixing bacteria with food and drug additives, resulting in stable formulations that can be used in various applications.
Researchers at Harvard University discovered that giant deep-sea vent tubeworms possess two functional carbon fixation pathways, the Calvin-Benson–Bassham (CBB) and reductive tricarboxylic acid (rTCA) cycles. These pathways are coordinated to enable symbionts to thrive in dynamic and harsh environments.
Researchers at UC Davis Health discovered that mesalamine can replace good bacteria's work in fighting Candida albicans in the gut. The study found that mesalamine maintains a low oxygen environment that prevents fungal growth, reducing the risk of invasive candidiasis.
A study reveals that salty soil conditions can facilitate disease in plants caused by the Gram-negative bacterium Pseudomonas brassicacearum R401. The researchers identified a phytotoxic metabolite, brassicapeptin, which is toxic to plants under salt stress and forms pores in plant membranes.
Researchers tested seven antibiotics in combination with various natural compounds, finding synergistic effects against multidrug-resistant bacteria. The study suggests combining antibiotics with plant extracts or phytochemicals could be a promising strategy to combat antimicrobial resistance.
A new study in Nature Communications reveals that symbiotic bacteria play a critical role in modulating the profile of root secreted molecules, influencing the assembly of a symbiotic root microbiome. The findings provide valuable insights into the complex interplay between nitrogen nutrition and plant-bacteria interactions.
Researchers found that matcha mouthwash significantly reduced levels of Porphyromonas gingivalis in saliva samples from people with periodontitis. Matcha's bactericidal activity against the pathogen was confirmed through lab experiments.