Articles tagged with Bacterial Species
A new study reveals that several species of bacteria reside in bladder tissue of postmenopausal women who experience recurrent urinary tract infections. The findings provide a better understanding of the interaction between bacteria and host tissue, which may lead to more effective treatment strategies for this chronic condition.
A new model describes how bacteria spread when moving in two different ways, providing a unifying theory for microbial communities. The theory reveals that the dynamics of spread are limited by the constraints of water and nutrient availability.
Researchers have identified a gut microbe, Mucispirillum schaedleri, that helps protect against Salmonella infections. The bacterium competes with Salmonella for nutrients, such as nitrate, and prevents the growth of pathogens by reducing their ability to express virulence factors.
Researchers at Columbia University School of Engineering and Applied Science have developed a system called BSCC, which enables rapid screening of engineered bacterial therapies in vitro. They successfully tested a potent therapy for colon cancer using a novel bacterial toxin combined with an optimal drug delivery genetic circuit.
Researchers found a new, more powerful variant of an antimicrobial resistance gene in Staphylococcus epidermidis, making it harder for the bacteria to be killed by chlorhexidine bathing. The discovery was an unexpected result of a study on central venous catheter infections.
Research reveals that over-the-counter throat medications containing topical antibiotics can contribute to antibiotic resistance in certain bacteria species. The study found that some products were not sufficiently concentrated to prevent bacterial growth, enabling resistance development.
Researchers found that three closely related species of bacteria outlived other oral bacteria in a 'doomsday' experiment, surviving for over 100 days without nutrients. The discovery sheds light on how certain pathogens persist in hospital environments and can cause infections.
Researchers discovered a unique symbiotic relationship between a marine flatworm and its bacterial partner, Candidatus Riegeria santandreae. The bacteria store chemical energy, which is then secreted to the host, bypassing digestion.
Researchers from Immanuel Kant Baltic Federal University found that Wolbachia bacteria, which prevent the birth and development of males in arthropods, can exchange genetic information to rejuvenate. This process allows them to mend broken genes and adapt to different hosts.
A global study found that colder climates produce richer bacterial communities on amphibian skin than warmer environments. The American bullfrog was representative of this phenomenon, with lower minimum temperatures associated with greater bacterial diversity.
Researchers found that C. elegans can acquire the molybdenum cofactor (Moco) by consuming E.coli bacteria, a molecule essential to enzyme function. This ability offers potential therapeutic avenues for treating Moco deficiency, a rare human genetic disorder.
Researchers propose the 'air bridge' hypothesis, suggesting bacteria can be transported globally through the air, sharing antibiotic resistance genes. Studies collected from hot springs worldwide found identical viral DNA memories in bacteria from distant locations.
When bacteria face starvation, they can eject their flagella to conserve energy. This behavior allows them to survive in nutrient-poor environments. The discovery provides new insights into bacterial evolution and potential targets for antimicrobial drugs.
Researchers reconstruct nearly 61,000 microbial genomes from human gut metagenomes, uncovering 2,058 previously unknown species and shedding light on the metabolic capabilities of uncultivated microbes. The study improves genomic resources for global populations, especially in regions with limited data.
Brazilian scientists have found that the strong odor released by some amphibian species is produced by bacteria, assisting in the animal's mating process. The study suggests that the odor serves to permit mutual recognition between males and females of the same species for mating purposes.
A new model microbiome community, THOR, has been developed by researchers to improve human health and soil productivity. The community of bacteria produced complex traits such as biofilms, which could lead to the development of new antibiotics and improved crop yields.
Researchers at North Carolina State University have developed a technique using bacteria to create biocement in coal ash ponds, making them stiffer and more difficult to spill. The resulting biocement can also trap potentially toxic metals in the coal ash, reducing environmental and public health concerns.
Research found that 31% of raw meat dog food samples exceeded EU regulations' maximum threshold for bacteria per gram. The study highlights the importance of proper storage, handling, and feeding to minimize potential health risks associated with these products.
A global survey of frog skin bacteria reveals that diverse microbial communities thrive in cold, variable environments. Fast-growing bacteria are often outcompeted by slower-dormant types in temperate climates.
Researchers found seven bacterial genes in yeast that enable iron-scavenging molecules production. The genes originated from bacteria and were transferred horizontally to yeast through a process called operon acquisition.
A high-fat diet is associated with an imbalance in gut bacteria and increased inflammation, which may lead to the development of metabolic disorders. In a randomized controlled trial, healthy young adults on different dietary groups found that those on a high-fat diet showed detrimental changes in long chain fatty acid metabolism.
Researchers identified nearly 2000 novel bacterial species in the human gut using computational methods, revealing significant geographical diversity and underscoring the importance of collecting data from underrepresented populations to achieve a comprehensive understanding of the human microbiome.
A recent study by NUS researchers found that microplastics can harbor toxic bacteria capable of causing coral bleaching and triggering wound infections in humans. The study identified over 400 types of bacteria on the plastics, including species that can degrade pollutants and others that cause harm to marine organisms.
Researchers use genetic analysis to determine when certain groups of bacteria evolved, providing insight into early environments and animal life. They found that three major groups of soil bacteria diversified around 450-350 million years ago, likely in response to changes in the environment.
Researchers at TU Wien have developed a simple method for detecting water contamination from ruminants directly at source using a DNA test. The technology uses targeted DNA amplification and detection to identify specific bacteria found in the intestinal microbiome of grazing cattle.
Studies show that lactic acid bacteria positively impact coffee fermentation, yielding fruity notes and enhancing flavor. Microbial communities also affect the build-up of fermentation-related metabolites on coffee beans, influencing overall quality.
Researchers have found a bacterial signature associated with intestinal disease, including Crohn's and ulcerative colitis. The study identified 18 new species of bacteria that can affect disease outcome, highlighting the importance of individualized approaches to treatment.
After obesity surgery, new microbial strains emerged in the human fecal microbiota, changing the gut environment. The study used a novel informatics technique to identify these new strains, which were more competitive in the altered GI tract environment.
A study of over 1,700 individuals found distinct gut microbiome compositions between IBD and IBS patients. The results may help identify new therapeutic targets for these gastrointestinal disorders.
Researchers discovered that some bacteria use multi-component flagella to manoeuvre out of small spaces, enabling them to escape and infect. The study's findings could lead to the development of new methods to block the transmission of harmful infections.
A team of biologists has discovered red wolf DNA in a group of canines living on Galveston Island, Texas, raising hopes for the species' survival. The finding, which may represent lost genes from captive breeding, challenges conventional science's dismissal of 'red wolves' as coyotes.
Stanford researchers discovered a protective lipid-linked cellular membrane in archaea, allowing them to thrive in highly acidic habitats. The discovery could provide new evidence about the evolution of life on Earth and shed light on molecular fossils.
Researchers analyzed the interactions between five core species of bacteria found in the fly gut, revealing a nuanced tradeoff between lifespan and fecundity. The study suggests that the presence or absence of individual species influences the host's fitness, and that the microbiome's influence cannot be solely attributed to its parts.
Researchers have found that individual species in the gut microbiome account for only a quarter of the effect on fly lifespan, while interactions between species play a crucial role in determining fitness. The study highlights the importance of understanding complex microbiome interactions to better comprehend human health.
A team of researchers has conducted a comprehensive survey of healthy corals, revealing that coral bacteria form complex associations with different sections of the coral body. The study found that distinct microbial communities exist in each tissue type, with the hard skeleton containing the greatest diversity of bacteria.
The study found that the common ancestor of Deinococcus species was rod-shaped, with six conserved genes (MreB, MreC, MreD, MrdA, RodA, and RodZ) present in all rod-shaped species. Phylogenetic analysis revealed that major gene loss occurred four times during evolution, generating spherical shape species.
Researchers found that bacteria can affect a bubble's longevity, causing it to last up to 10 times longer than an uncontaminated one. The team discovered that bacterial secretions act as surfactants, extending the lifetime of contaminated bubbles by reducing surface tension and making them more resistant to perturbations.
A study published in Immunity found that the gut bacterium Lactobacillus plantarum produces excessive lactic acid when its receptor protein PGRP-SD is disrupted, leading to oxidative stress and accelerated aging. Increasing PGRP-SD levels prevents this effect and extends lifespan.
Researchers found that gut bacteria partially recovered six months after antibiotic treatment, but with a loss of sensitive bacterial species. Resistance genes also increased in the remaining bacteria. Over time, good microbes like bifidobacteria took over, normalizing the microbiome.
Researchers found that barn swallow subspecies evolved independently of humans but in sync with human expansion and settlement, suggesting a significant link between the two species. The study suggests a 'founder event' where swallows rapidly expanded into new environments alongside humans.
A global research team led by OU professors Karl D. Hambright and Lee R. Krumholz is investigating the complex interactions between cyanobacteria and associated bacteria in freshwater blooms. The team aims to discover new avenues for bloom mitigation through a deeper understanding of microbial co-evolution.
Researchers found that antibiotics can almost completely eradicate gut bacteria in healthy adults, but most species recover over time. However, a significant portion of beneficial bacteria remain missing, and the diversity of the gut ecosystem is diluted.
Researchers found that up to 12% of bacteria on average were alive and able to reproduce in dark rooms. In contrast, only 6.8% of bacteria exposed to daylight and 6.1% of those exposed to UV light remained viable. This suggests that daylight can reduce the risk of dust-borne infections by killing dust-dwelling bacteria.
A new study reveals that low-calorie sweeteners can change the types of bacteria found in the gut, leading to impaired regulation of glucose levels. The research found a significant reduction in beneficial bacterial species and an increase in opportunistic gut bacteria.
Researchers found that certain gut bacteria in European badgers kill off M. bovis, potentially reducing TB spillover to cattle. The bacteria also stimulate the badger's immune system, improving vaccine effectiveness.
Researchers at UC Berkeley have developed protective suits for bacteria that allow them to thrive in environments without oxygen. The hybrid system mimics photosynthesis and captures carbon dioxide, producing various chemical compounds that can be used by industry or in space colonies.
Researchers discovered that fossil ants preserved in amber had specialized structures to support bacteria that produced antibiotics, helping them combat crop diseases. This ancient ant-bacteria symbiosis evolved independently three times and may hold clues for reducing antibiotic resistance in humans.
Research suggests that Vibrio species have a crucial role in marine organic carbon cycling, particularly in coastal environments. These bacteria can rapidly consume and transform organic matter into cell material and waste products.
A Rutgers-led study reveals how green algae adapted to tolerate hostile conditions by stealing genes from bacteria, providing clues for engineering more resilient algae. The findings suggest that these hardy species can survive climate change and offer potential solutions for biofuel production and other applications.
Researchers found gallium effective in curbing bacterial growth in mice and patients with cystic fibrosis or chronic lung infections, including those infected with Pseudomonas aeruginosa. Gallium's slow development of resistance makes it a potential alternative to standard antibiotics.
Researchers found that NLRP12 promotes healthy gut bacteria, which produce butyrate and propionate, protecting against obesity and insulin resistance. The study suggests a potential therapeutic target for treating obesity and diabetes.
A recent study has found that birds develop resistance to bacterial infections, which in turn leads to the evolution of more potent pathogens. This host-pathogen coevolution process plays a key role in shaping species' defenses and highlights the importance of understanding emerging infectious diseases.
Researchers at the University of Helsinki identified a novel species of Propionic Acid Bacteria, which was named after A.I. Virtanen due to its genetic differences from previously described strains. The discovery honors Virtanen's pioneering work on PAB, a topic often overlooked in his biographies.
Researchers create standardized model by reclassifying bacteria into 121 separate genus groups across 29 different families. The study uses metagenomics and genome sequencing technology to overcome historical difficulties in classifying microbial species.
Researchers identified a unique microbial signature in the guts of malnourished children, characterized by widespread presence of bacteria normally found in noses and mouths. The study, part of the Afribiota project, aims to improve treatment and diagnosis of chronic malnutrition.
Scientists have created a fluorescent probe that can tag single specimens of tuberculosis bacteria, which could lead to faster diagnosis and more effective treatments. The probe works by detecting the presence of an enzyme called BlaC, allowing for the identification of live versus dead bacteria.
A new study reveals that hospital-associated bacterial species Enterococcus faecium is adapting to alcohols used in handwash disinfectants, increasing treatment resistance. The analysis of 19-year-old bacterial samples from two Australian hospitals suggests several mutations confer increased alcohol resistance.
Researchers discovered that fruit flies have a diverse and stable gut microbiota, with bacteria able to colonize the fly's intestine. This discovery sheds light on how fruit flies 'farm' bacteria, similar to humans using yeast or bacteria in food production.
A single course of antibiotics early in childhood may increase the risk for Type 1 diabetes, according to a study published in eLife. The research found that four bacterial species groups were significantly more abundant in the guts of mice treated with the antibiotic, and likely involved in driving progression of the disease.
A large-scale screening of antibiotic combinations has identified over 500 pairs that improve antibiotic effectiveness against multi-drug resistant bacteria. These pairings could help combat antibiotic resistance by selectively targeting harmful bacterial species, reducing the development of resistance and its transmission.