Articles tagged with Microbial Ecology
Researchers at Tokyo Metropolitan University identified how deadly E. coli bacteria spread using a chain-like adherence pattern under flow, and discovered a new gene family mediating this process. This discovery provides new insights into infection mechanisms and potential treatments for LEE-negative strains.
A new study reveals that rare bacteria play a crucial role in maintaining microbial community stability, while core bacteria organize complexity. Climate and soil conditions shape distinct bacterial groups, with rare bacteria responding to soil properties and core bacteria influenced by environmental selection.
A team of researchers from Kyoto University created a machine-learning model to design microbial communities that promote tomato growth and stress tolerance. The communities, composed of six bacteria and the tomatine metabolite, were found to improve tomato growth and tolerance to high-temperature stress in laboratory and outdoor trials.
The Single Cell Genomics Center is expanding its services, becoming more accessible, and exploring new applications of single-cell sequencing. New tools, including robotics and a sequencer, are streamlining the center's analytical workflow and enabling the team to explore new opportunities.
Researchers discover 118 new myxobacteria and expand the biodiversity of bacterial active-ingredient producers. The study identifies five new classes of compounds with potential anti-fungal, anti-viral, and antibacterial effects.
Researchers found that upper and lower surfaces of oak leaves support different microbial communities, with the upper surface hosting stress-tolerant genera and the lower surface favoring sugar-fermenting taxa and insect-associated bacteria. The two sides show striking seasonal divergence in terms of diversity and abundance.
A Portland State University professor has received a nearly $1.2 million NSF CAREER Award to study the predator-prey relationship of Prochlorococcus, the ocean's most abundant photosynthetic life form. The project aims to understand how single-celled ocean predators hunt Prochlorococcus and its implications for the ocean's food web.
Researchers have identified a hardy sea sponge that can thrive in polluted harbor habitats, demonstrating an exceptional ability to adapt and even reproduce asexually. The chicken kidney sponge showed outstanding resilience and was found to be particularly effective at filtering pollutants and recycling nutrients.
Researchers found that alternating periods of nutrient-rich conditions and starvation can stabilize a self-destructive survival strategy in yeast, allowing it to persist for hundreds of millions of years. This theory suggests that changing environments play a crucial role in shaping the evolution of complex ecological strategies.
A new liquid-based platform called 'floatony' can form and maintain complex three-dimensional microbial structures while preserving molecular diffusion, spatial structures, and cell mobility. This approach could offer new ways to study gut microbiota, biofilms, and other spatially organized microbial communities.
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 at the University of Washington School of Medicine discovered that environmental bacteria can acquire and transfer antibiotic resistance genes to disease-causing bacteria in human lungs. This mechanism, previously unknown, could lead to rapid development of extreme antibiotic resistance. The study highlights the potential f...
Researchers found that as salinity increases in freshwater environments, microbial communities lose diversity due to faster-growing strains taking over, but maintain overall growth rates. This effect is also observed in natural ecosystems across different environments.
Researchers discovered that certain bacteria produce an enzyme to break down antibiotics, enabling their survival. This 'altruistic cell death' mechanism allows the bacteria population to thrive, making existing and future antibiotics less effective.
Researchers explored how AI and metabolic modeling can inform effective biocontrol strategies to combat antimicrobial resistance in built environments. Microbial biocontrol using 'good' microbes has shown promise, but inconsistent outcomes are due to various factors, including genetic differences and environmental stressors.
Researchers developed a new way to uncover differences in how viruses infect and destroy individual microbial cells. The study used a mathematical modeling framework to analyze infection outcomes in individual cells, revealing striking accuracy and new insights into viral behavior.
A global analysis of 932 observations shows that biochar delivers stronger carbon gains in nitrogen-poor soils and follows different carbon storage pathways depending on soil fertility. Biochar effectiveness varies greatly from one field to another, with the amount of nitrogen already present in soil controlling how much carbon it stores.
Understanding plant microbiome interactions could transform crop production and improve sustainability. Researchers are exploring how plants shape their microbial partners to acquire nutrients, defend against disease, and respond to environmental stresses.
A new study reveals that melanoidins, dark-colored compounds formed during hydrothermal treatment, can severely damage the microbial system responsible for methane production in anaerobic digestion. High doses of melanoidins can cause methane generation to nearly stop, leading to system collapse and energy loss.
Researchers found bacteria can forcefully eject cells from communities as a survival mechanism, utilizing self-generated hydrogels. This ability allows biofilms to disperse and colonize new areas, potentially aiding in the elimination of harmful bacterial communities without antibiotics.
A new study reveals how biochar can directly suppress destructive soil-borne pathogens like Ralstonia solanacearum, while helping rebuild a richer and more stable soil bacterial community. Biochar's reactive oxygen species profile changes with pyrolysis temperature, making it a powerful tool for precision agriculture.
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 found that a fungus's metabolic breadth, or range of nutrients it can use, links its ability to kill insects, partner with plants, and thrive in different ecological roles. Strains capable of using a wider range of nutrients were faster and deadlier at killing insects and more effective at colonizing plant roots.
Biochar improves soil physical and chemical properties by increasing water retention, enhancing soil aggregation, raising organic matter content, and regulating pH and nutrient availability. Biochar also reduces allelopathic autotoxicity and supports healthier plant development by adsorbing or degrading harmful compounds.
A new study reveals that biochar increases soil organic carbon more efficiently than straw by guiding microbes towards stable carbon formation. Biochar promotes a slower but more stable carbon pathway, reducing native soil carbon mineralization.
A unique regulatory protein called VadK has been identified as a key player in Mycobacterium tuberculosis survival. The enzyme acts as a molecular control switch, enabling the bacterium to access essential energy sources and cause disease.
Researchers found well-preserved bacterial communities in ancient middens, including species from human feces and animal hosts. The study suggests that these communities provide a unique glimpse into the daily life of Paleo-Inuit and old Norse, including their farming, seal hunts, and toilets.
A new study reveals that biochar reshapes microbial activity over time, transforming dissolved organic matter into more stable carbon pools. Long-term effects were increasingly controlled by soil microbes, suggesting a key role in durable soil carbon sequestration.
A new study has analyzed over 2100 samples to build a genetic dataset containing more than 500 million unique genes, revealing the immense potential of deep-sea biodiversity for developing new technologies. The research found that despite vast genetic diversity, deep-sea organisms rely on stable, core designs to survive extreme conditi...
Researchers discovered bacteria can migrate over metres as self-organised bands, driven by selection of strongest swimmers. This finding reveals bacterial diversity plays crucial role in ecosystem resilience.
A new study maps the microbial community in the mouth, revealing distinct habitats and species that work together to maintain oral health. The findings suggest that targeted therapies, such as probiotics, can be developed to manipulate the microbiome and prevent disease.
Researchers tracked microbial community shifts across six sites over four years and discovered that each site had its own stable microbial community. These communities were organized around two broad groups of microbes, with stable microbes maintaining core processes and responsive microbes capitalizing on new opportunities.
A Tulane University study found that long-term antiretroviral treatments did not fully restore key immune functions to protect and repair the gut lining in nonhuman primates with SIV. The researchers discovered that diet-derived compounds from vegetables like broccoli and cabbage may support immune activity involved in gut repair.
Leaffooted bug nymphs must play a 'game of roulette' to acquire bacterial symbionts needed for survival and growth within a limited time frame. The study found that delayed symbiont acquisition leads to reduced survivorship, adult weight, and increased development time.
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.
Scientists have mapped the structure of Vibrio bacteria with unprecedented detail, revealing a new target for treatment. The findings could provide a solution to life-threatening infections linked to antibiotic resistance.
Researchers found that connected habitats enhance the ability of amphibian skin microbiome to defend against diseases by increasing beneficial bacteria presence. This study highlights a critical link between environmental disturbance, microbial defenses, and disease dynamics.
Researchers at the University of Manchester have found that terrestrial hot spring microbiomes can transform industrial CO2 waste into biomass and other valuable compounds. This discovery could enable the production of value-added products directly from CO2-rich waste streams, reducing emissions while generating economic value.
Researchers found that antiretroviral therapy reduces accelerated biological ageing in people with HIV by nearly four years. The plasma proteomic ageing clock tool estimated biological age and showed a statistically significant mean reduction of 3.7 years.
A new study from the University of East Anglia found that living with friends may alter your gut bacteria, with social closeness driving the exchange of anaerobic microbes. The research suggests that daily interactions at home, such as hugging and sharing food prep spaces, may encourage the transfer of beneficial gut bacteria.
Research conducted by San Diego Zoo Wildlife Alliance and Save the Elephants found that elephants' gut microbiomes shifted significantly when sharing habitat with livestock. Microbes commonly found in livestock became more abundant, while beneficial microbes decreased.
A new study reveals that declining floating-leaf plants release harmful nutrients, but also trigger a microbial process that converts simple organic matter into resilient, long-term carbon storage. This process enhances the lake's ability to sequester carbon through a microbial carbon pump.
A long-term public study found that phytochemicals from oregano and rosemary supported favorable gut health and growth performance in weaned pigs, preserving microbial diversity to improve nutrient utilization. The natural agents outperformed antibiotic growth promoters in terms of final body weight and gain-to-feed ratio.
A study by the Max Planck Institute for Chemical Ecology found that an introduced bacterium can replace an ancient insect symbiont within a few generations. The beetles exhibited reduced reproduction rates, lower life expectancy, and altered immune systems after infection with the new bacterium.
A global analysis reveals that microbial communities play a decisive role in determining biochar's carbon storage potential. Biochar increases soil organic carbon by an average of 52.4%, but its effectiveness varies depending on the composition of soil microbial communities and environmental conditions.
UT's latest AAAS Fellows are Brad Binder, Jennifer DeBruyn, and Elisabeth Schussler, recognized for their contributions to biochemistry, environmental microbiology, and ecology. Their work addresses pressing issues like plant stress, decomposition, and sustainability.
A new study reveals that microplastics and hydrochar can mobilize trapped phosphorus in rice paddies, triggering distinct microbial strategies. Hydrochar increased available phosphorus by 21.1%, while microplastics pushed it up by 14.2%.
Researchers at Tongji University have discovered that ferrihydrite is a highly effective mineral in trapping chromium and storing organic carbon. This finding has significant implications for environmental remediation, enabling the development of nature-based solutions to clean up contaminated mine soils while sequestering carbon.
A new study reveals that biochar can significantly reduce nitrous oxide emissions from forest soils, shifting them from a source to a potential climate solution. Biochar was found to suppress key microbial genes responsible for producing N2O while increasing the abundance of microbes that convert it into harmless nitrogen gas.
A study by Florida Atlantic University researchers has uncovered the impact of stress on wild songbirds, finding that even mild challenges can alter the gut microbiome, leading to changes in health indicators such as beak color and stress hormone levels.
Research shows that bacteria harbor resistance genes may respond differently to antibiotics under non-standard conditions. This affects treatment efficacy and contributes to understanding antimicrobial resistance development and spread. Understanding these variations is crucial to combat global public health threats.
A new study reveals that plant roots selectively accelerate the degradation of large biodegradable microplastic particles in soil, but also accumulate phytotoxic byproducts near crops. The findings challenge assumptions about biodegradable plastics' harmless breakdown in agricultural soils.
A global team of scientists, led by University of Houston microbiologist Madhan Tirumalai, has identified the critical role of biofilms in human space exploration. Biofilms could influence astronaut health, drug delivery and space agriculture, while also posing risks to astronaut health.
Researchers develop mathematical model to capture microbial cooperation and community stability, predicting the outcome of experiments with E. coli strains. The model's results show that auxotrophs contribute to stable communities by trading essential nutrients and limiting growth.
Researchers found that silencing bacteria can worsen heart infections by promoting aggressive biofilm growth and reducing antibiotic effectiveness. The study highlights the need for targeted therapeutic strategies against infectious endocarditis.
Researchers from the University of Southern Denmark have identified a new virus in a common gut bacterium that appears more frequently in patients with colorectal cancer. The study demonstrates a statistical association between the virus and colorectal cancer, but its role is still unclear.
Blautia luti produces formic acid as an electron taxi, bypassing the energetically costly production of hydrogen. The bacterium detoxifies formic acid via a special metabolic pathway, linked to sugar breakdown and acetic acid production.
New research from the University of Illinois has found that corn's wild ancestor genes can inhibit nitrifying and denitrifying bacteria, reducing nitrogen loss and greenhouse gas emissions. The study shows reductions in nitrification of up to 50% in field and greenhouse trials, with potential huge impacts on sustainable agriculture.
A Europe-wide study reveals that pesticides have substantial effects on beneficial soil organisms, including mycorrhizal fungi and nematodes. The contamination has a major impact on soil biodiversity, highlighting the need to adapt current pesticide assessments and regulations.
A University of Virginia study reveals phosphorus pollution in Lake Anna comes from multiple sources, including homes and abandoned mines. Elevated levels of arsenic, lead, and copper were found near mining sites, highlighting the need for broader strategies to address nutrient and metal pollution.