Articles tagged with Microbial Genetics
Researchers are studying foul-smelling substances to understand what attracts the New World screwworm, a flesh-eating parasite, to its favorite meal - open wounds. The goal is to develop better lures for trapping this serious threat to the livestock industry.
Researchers found that CRISPR-Cas systems regulate the expression of innate immunity genes to defend against bacteriophages. This layered regulatory hierarchy provides a layer of protection, making it challenging for phages to evade the defense mechanisms.
A new automated workflow called Pathogen2Read streamlines bacterial sample preparation for genetic sequencing, reducing hands-on preparation time from a full day to under 45 minutes. This innovation enables small labs to participate in outbreak-monitoring networks and improve response times.
The partnership aims to develop genomic tools addressing large-scale problems in health and the environment, combining research strengths across UC San Diego's departments. The collaboration will accelerate discovery and drive real-world impact, leveraging CRISPR technology and microbiome-editing tools.
Researchers Cong Trinh and Seunghyun Ryu receive US Department of War funding to analyze fungal genes and develop new synthetic biology tools for mitigating fungal contamination in critical systems. The grant focuses on Candida species, which can degrade materials used in electronics, vehicles, and fuel systems.
A citizen science project is mapping the microbiomes of a university campus, including those within students themselves, to understand how urbanization affects microbial biodiversity. The project provides valuable opportunities for scientific skill development and educational outreach.
Researchers uncovered the genetic history of Acinetobacter baumannii, tracing its evolution over decades to identify key resistance traits and global spread. The study provides valuable insights for guiding policies on antibiotic use and combating this serious healthcare threat.
Scientists have identified a unique chimeric RNA called UBA1-CDK16 that plays important roles in women's blood cell development and disease severity. The findings suggest the chimeric RNA may serve as a natural brake to protect women from excessive autoimmune activity.
Jacques Ravel has been recognized for his foundational contributions to understanding the human vaginal microbiome, its links to pregnancy outcomes and susceptibility to infection. His work also laid the groundwork for live biotherapeutics designed to shape the vaginal microbiome in ways that could improve pregnancy outcomes.
The University of Cologne's researchers will continue to work on innovative treatments for lymph node cancer and study plant responses to environmental changes. The Collaborative Research Centres have received a total of approximately €39 million in funding, highlighting the university's strength in collaborative research.
Researchers found a diverse bacterial ecosystem in seagrass habitats that was disrupted by increased water temperature, leading to reduced seagrass biomass and tolerance to climate change. The study highlights the importance of considering microbial communities in understanding marine plant responses to environmental stress.
Researchers developed a new tool called TRAnsmision Clustering of Strains (TRACS) to track the spread of disease-causing microbes using genomics. The tool distinguishes between closely related bacterial strains and can identify transmission networks and rule out events in ongoing public health applications.
A team led by Prof. Orna Amster-Choder will investigate rapid physical and chemical changes in bacterial cells to adapt to stress, challenging traditional assumptions about gene expression.
A recent study identified distinct microbial signatures in the oral cavity and gut that serve as robust biomarkers for early gastric cancer detection. These microbial markers can be detected in saliva or stool samples using machine learning models, achieving an AUROC of 0.87 for saliva-based detection.
Two junior research groups at Leibniz-HKI are combining robotics and genetics to discover new antifungal agents against Fusarium. By integrating automated screening experiments and genetic analysis, they aim to identify potential drug candidates and uncover the genetic basis of Fusarium virulence.
Researchers have completed the most comprehensive survey of DNA associated with plankton in the Southern Ocean, revealing a vast genetic diversity that affects the carbon cycle. The study sheds light on the role of microbial ecosystems in climate change and highlights the need to understand how these genes control ocean chemistry.
Researchers have identified three previously unknown genotypes of Helicobacter bacteria in pygmy sperm whales stranded along the southeastern US coast. The discovery raises new questions about microbial pathogens on ocean health and their impact on vulnerable species.
Researchers identified 11 genetic regions influencing gut bacteria and roles they play, including connections to gluten intolerance, haemorrhoids, and cardiovascular diseases. The study analyzed genetic data from over 28,000 individuals, providing insights into the complex relationship between genes and gut microbiome.
Research reveals that probiotics can enhance root development and nitrogen uptake in plants, improving growth without excess fertilizer use. The Sphingopyxis genus supports plant function, offering a potential solution to reduce environmental impact of agriculture.
Researchers at the University of Chicago have discovered a light-sensitive signaling cascade in Pseudomonas aeruginosa that suppresses biofilm formation and virulence. The study, published in Nature Communications, identifies a small protein called DimA as the key trigger for this process.
Researchers at QST discovered that controlled gamma-ray mutagenesis can create heat-tolerant nitrogen-fixing bacteria in weeks, shortening development timelines. The method produces robust, climate-ready microbial products for agriculture, food processing, pharmaceuticals, and biofuel production.
Researchers discovered a tiny RNA molecule called PreS that helps viruses copy their DNA more efficiently and boost replication in bacterial cells. This discovery provides important insights for designing smarter phage-based therapies against antibiotic-resistant infections.
Researchers have created a simple and efficient system to understand norovirus gene functions, enabling the development of antivirals and vaccines. The new method involves injecting norovirus cDNA clones into zebrafish embryos to generate infectious human noroviruses.
A study found that viral interactions inside cells influence antiviral resistance outcomes, while a less potent drug may ironically improve its future utility by promoting social interactions in viruses. The researchers suggest a trade-off between hitting the virus hard and allowing resistance to rise.
Researchers found that filamentous cyanobacteria regulate their metabolism during the day and genome repair at night, revealing a new circadian rhythm in these microorganisms. Their study also uncovered diversity-generating retroelements and mobile genetic elements active throughout the day-night cycle.
The AMR portal connects bacterial genomes, resistance phenotypes, and functional annotations, providing a central hub for global AMR research. It brings together experimental and computational data types, allowing researchers to investigate how genetic variants translate into antimicrobial resistance.
A recent study at UC Davis has shown that feeding cows red seaweed can dramatically cut the amount of methane produced, with a 60% reduction in emissions. The research identified specific microbes in the cow's gut that help reduce methane production, opening the door to engineering these microbes for a long-term solution.
Researchers have developed a molecular test capable of detecting three major pathogenic fungi at once, with a much quicker turnaround than traditional methods. The test bypasses the slow culture process by detecting genetic material directly, eliminating errors and reducing laboratory risk.
The Global Pathogen Analysis Platform (GPAP) will enable low- and middle-income countries to conduct research and surveillance of infectious diseases independently. The platform aims to prevent disease outbreaks from developing into pandemics by detecting genetic sequences of potential pathogens.
A new study reveals an unusual microbial world in the Hatiba Mons hydrothermal vent fields, showcasing remarkable metabolic versatility. The microbes present demonstrate a unique ecosystem dominated by iron-driven metabolisms, which drive chemical transformations and sustain life under extreme conditions.
Researchers found that hosts harboring different microbial strains exhibited neurobehavioral differences. The study identified 34 significant associations between microbial single nucleotide variations and host plasma metabolites, primarily related to key physiological processes such as neuroactive regulation and oxidative stress.
A new study reveals rising rates of invasive SDSE infections across Australia, particularly among older Australians and those from remote regions. The research highlights disparities in health outcomes between regions and populations, emphasizing the need for improved surveillance and prevention strategies.
Researchers have developed a new technique called Dual transposon sequencing to rapidly identify genetic interactions in bacteria. This method reveals vulnerabilities that could be targeted by future antibiotics.
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.
A study published in Cell Host & Microbe found a significant link between the maternal gut microbiome and preterm birth. The researchers identified Clostridium innocuum as a key bacteria species that may contribute to preterm birth by degrading estradiol, a critical hormone during pregnancy.
Scientists developed a method to isolate genes from tiny amounts of microbial DNA, revealing previously unknown antibiotic resistance genes. The researchers discovered new types of efflux pumps and an entirely new family of streptothricin resistance proteins in bacterial DNA isolated from human stool and aquarium samples.
Researchers studied a microscopic alliance between algae and cyanobacteria to understand how bacteria lose genes and adapt to increasing host dependence. The study found that the level of integration between the symbionts affects genome size, gene content, and metabolic pathways.
Researchers have discovered that combining antimicrobial peptides from bees and frogs can prevent bacteria from mutating quickly, making them a promising alternative to traditional antibiotics. This finding could lead to safer disease control in livestock and agricultural settings.
A new study has reconstructed two 4000-year-old genomes from Mycobacterium lepromatosis, a rare pathogen that caused Hansen's Disease in the Americas. The discovery challenges historical records of leprosy's impact on population health and its origins in the continent.
Researchers have identified genetic bottlenecks that explain the emergence of pandemic cholera strains. These specific combinations of genes and allelic variants grant an advantage in human intestinal colonization, allowing a small subset of Vibrio cholerae to become deadly pathogens.
A recent study reveals the diphtheria epidemic in Western Europe is primarily caused by contamination during migratory travel or in destination countries, not in the countries of origin. The researchers emphasize the importance of maintaining high levels of vigilance and public health support among vulnerable populations.
Researchers have identified ten hemagglutinin sub-subclades with distinct antigenic variations, explaining why existing vaccines are ineffective against H9N2 AIVs. Key mutations associated with increased infectivity and pathogenicity in mammals have also been found.
A study by University of Fukui researchers reveals that two adjacent gene pairs in Neurospora crassa regulate antiviral response and symptom induction via RNA editing. The findings indicate that the modification of master transcription factor genes is crucial for controlling fungal antiviral responses.
Researchers from Uppsala University describe a fundamental mechanism of antibiotic resistance, revealing how FusB works like a crowbar to rescue ribosomes from fusidic acid. The study provides new insights into the most prevalent type of fusidic acid resistance in Staphylococcus aureus.
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.
The latest focus issue of Molecular Plant-Microbe Interactions explores the molecular, cellular, and genomic details of cereal crop diseases, highlighting key research on plant-pathogen interactions. Groundbreaking work has advanced the field, offering new insights into disease resistance and management strategies.
Researchers developed guiding principles for personalized nutrition approaches addressing users and beneficiaries, data collection and handling, methodology, and purpose. They also addressed the opportunities and challenges around data and regulatory issues in the field of personalized nutrition.
Researchers discovered that sulfur bacteria from the Desulfobacteraceae family work together like a team to break down diverse organic compounds. By analyzing six strains, they found similar molecular strategies and a highly energy-efficient central metabolism pathway, enabling them to thrive in oxygen-free environments.
Professor Uauy brings extensive experience in wheat genetic research and genomics to lead the institute's ambition to deliver Healthy Plants, Healthy People, Healthy Planet. His vision for plant science will ensure global agricultural challenges are addressed through interdisciplinary science.
A new study has identified five species of root-lesion nematodes in maize fields across New Zealand, revealing significant diversity and regional distribution patterns. The discovery highlights the need for targeted pest management strategies to protect crop yields and maintain agricultural productivity.
Researchers have analyzed ancient DNA from Mexico, Chile, Peru, and Argentina to determine the origin of syphilis. The study found that syphilis-like infections occurred in the Americas for millennia and supports an American origin for the disease.
Researchers discovered a set of genes in Lactiplantibacillus plantarum that enable it to stably attach to host tissue, revolutionizing our understanding of microbiome colonization. This breakthrough could lead to the creation of targeted probiotics and improved gut health.
Researchers have cataloged the microbiome of US rivers, finding high levels of antibiotic resistance genes near wastewater treatment plants. The study also reveals that microbes play a significant role in shaping river health and can predict water quality under current and future scenarios.
The winners of the Applied Microbiology International Horizon Awards 2024 have been named, including the One Health Microbiome Center at Penn State and researchers Dr. François Thomas and Dr. Helen Onyeaka.
Researchers discovered a beneficial gut bacterium that produces an enzyme capable of metabolizing key molecules involved in regulating appetite, immune responses, and neuronal function. The discovery highlights the importance of gut microbes in human physiology and may lead to new strategies for maintaining health and treating diseases.
A new study has identified novel strains of microbes that have adapted to use limited resources in cities, including those found in Hong Kong's subways and skin. These microbes can metabolize manufactured products, posing health risks if they are pathogenic.
A new study from European universities has developed a method to analyze wastewater data from seven major cities, identifying thousands of disease-causing bacteria, viruses, and antimicrobial resistance. This approach can detect potential health threats simultaneously, potentially preventing epidemics from escalating into outbreaks.
Researchers have analyzed over 43,200 ocean microbial genomes, uncovering a wide range of diversity and new insights into immune system adaptations. The study provides new enzymes that can break down common plastics and antimicrobials to combat antibiotic resistance.
Researchers have developed a comprehensive database of the 'food microbiome' by sequencing metagenomes from 2,533 foods, identifying 10,899 food-associated microbes. The study shows that these microbes can influence human health and provide insights into how to improve food quality, safety, and authenticity.
Researchers discovered a non-virulent bacterium, Mycobacterium spongiae, that shares 80% of its genetic material with M. tuberculosis, shedding light on the disease's origins. The study provides valuable insights into the evolution and virulence of TB.