Articles tagged with Microbial Ecology
Researchers created a sediment Microbial Fuel Cell (sMFC) system that can remotely investigate the physiology and ecology of electrically active microbes in submerged field sites. The device's cathode depth affected microbial community composition and energy recovery from sediments.
Researchers found universal (host-independent) dynamics for healthy individuals' gut and mouth microbiomes. Fecal microbiota transplantation therapy also relied on these shared patterns to treat C. difficile infections.
Scientists at PNNL are part of a core group advising the White House on microbiome research. The National Microbiome Initiative aims to study microorganisms' impact on climate science, food production, and human health.
A new study finds that excessive algae growth in coral reefs causes microbes to dominate the food chain, depleting oxygen and releasing harmful pathogens. This leads to a runaway feedback loop, further coral death and ecosystem collapse. The research highlights the impact of human activities on coral reef ecosystems.
A team led by Julie Huber has discovered an active microbial community in cold oceanic crust at North Pond, an isolated sediment pond on the western flank of the Mid-Atlantic Ridge. The microbial community is oxygenated and heterogeneous, with distinct differences from that found in ocean bottom seawater.
A new study suggests that taking antibiotics in early childhood may disrupt the gut's microbial ecosystem and increase the risk of developing prediabetes in adolescence. The researchers found that a depletion of beneficial bacteria, such as Ruminococcus species, was associated with higher rates of antibiotic use.
Researchers found that microbes retained many of their original traits after 17 years, despite being transplanted to new climates, suggesting they may not be as adaptable to climate change as previously thought. This study has significant implications for our understanding of the future climate and the resilience of the environment.
A comprehensive field study reveals rapid microbial response to warming in tundra ecosystems, leading to increased greenhouse gas emissions and nutrient cycling processes.
Researchers found that biodiversity facilitates processes in an ecosystem, especially under harsh environmental conditions. The team tested this hypothesis using microbial communities and demonstrated that functional redundancy varies with prevalent environmental conditions.
The Bigelow Laboratory is part of a $8 million initiative to develop molecular tools for understanding dinoflagellates' function and their impact on ocean ecosystems. The project aims to create genetic tools that will allow researchers to investigate the activities of microbial genes and provide new capabilities for scientific inquiry.
A mathematical model reveals that competition between beneficial bacteria helps maintain the stability necessary for a healthy gut. By suppressing overabundant bacteria and keeping different species apart, hosts can intervene to maintain this natural balance.
Research reveals that humans and animals host highly specialized microbial communities, differing from earlier assumptions of generalist dominance. These findings have significant implications for the structure of biodiversity in microbial ecosystems.
A team of marine researchers has discovered a three-way conflict between algae, bacteria, and vitamin B12 in the frigid waters off Antarctica. The competition for iron and vitamins has significant implications for understanding globally significant food webs of the Southern Ocean.
OU Professor Jizhong Zhou has been recognized for his outstanding contributions in environmental genomics and microbial ecology. He is being honored for developing innovative metagenomics technologies and groundbreaking discoveries about microbial systems in response to environmental change.
A seven-year study reveals that microbial communities in urban waterways can remove and neutralize organic pollutants, providing a sustainable solution for managing urban watersheds. The discovery of key chemical elements influencing the community's functions paves the way for further research and monitoring.
Researchers emphasize the need for more studies on dispersants' effects on microorganisms in marine ecosystems. Standardized methods and consistent metrics are crucial to document dispersant impacts, as existing research reveals inconsistent results.
A multi-institutional team has discovered that statistical analysis of DNA from natural microbial communities can accurately identify environmental contaminants. The study, sponsored by the US Department of Energy, found that changes in microbial community structure persist long after contaminants are undetectable.
Researchers found that microbial communities on shoes closely resemble those on the floor, suggesting strong transfer between the two. Cell phone microbial signatures were less stable due to rapid community turnover. The study's findings have potential applications in forensic analysis.
Researchers found that individual microbial communities are surprisingly unique and can be used to identify people over time. The study suggests that these microbiome 'fingerprints' could potentially expose sensitive information, but also offer new insights into human health and ecology.
Research suggests that probiotic Lactobacillus rhamnosus GG modifies the activity of other gut bacteria, fostering a healthy immune system and promoting several species of beneficial microbes. The discovery could lead to more effective strategies for maintaining a balanced gut ecosystem.
A new microarray-based tool called VaginArray has been developed to rapidly diagnose vaginal infections and assess vaginal microbiome health. The tool uses 17 probe sets specific for representative bacterial species, including those associated with healthy and unhealthy conditions.
Researchers found daily rhythms in metabolism among microbial communities in different ocean habitats, with common photoautotrophs initiating a cascade effect. This work suggests that microbial communities behave similarly across entire ocean basins.
Karen Lloyd, a University of Tennessee professor, has been selected as a 2015 Alfred P. Sloan Research Fellow in Ocean Sciences for her groundbreaking research on marine microbial life and geochemical cycles. Her work holds promise for understanding the physiology and ecology of marine microbial life.
Scientists studied the impact of Deepwater Horizon oil on Pensacola Municipal Beach's microbial communities, finding that generalist microbes were most successful in expanding their populations. After a year, microbial populations buried in beach sands looked similar to pre-spill levels, with some unexplained differences.
Researchers found that pubic hairs harbor distinct microbial communities, which can distinguish between males, females, and individual people. These findings suggest that microbial 'signatures' from pubic hairs could be used as a new way to link offenders to victims in sexual assault cases.
Microbial succession in restrooms begins with gut and vaginal bacteria, followed by skin and outdoor microbes. Skin and outdoor taxa comprise most of the cultured communities, suggesting restrooms are not significantly unhealthy or healthy.
The study reveals the complex relationships within a model ecosystem, with implications for protecting the environment and human health. The researchers found that Microthrix parvicella, a generalist bacterium, can adapt to various living conditions and dominate the wastewater treatment plant ecosystem.
The November issue of Frontiers in Ecology and Environment presents research on connectivity cost calculations for conservation corridors, agricultural companions that improve yields, and the consequences of growing jellyfish populations for human well-being.
Researchers are analyzing the changing populations of bugs and bacteria at crime scenes to provide crucial details such as geographical location, gender, and socioeconomic relations. The approach aims to aid investigators in solving cold cases by creating a repository of microbial community data for future reference.
A new species of microbe, Methanoflorens stordalenmirensis, has been found to control the release of methane from thawing permafrost soils, affecting global climate change predictions. The study reveals that this microbe plays a significant role in amplifying climate change by controlling greenhouse gas emissions.
MaxBin facilitates genomic analysis of uncultivated microbial populations by automatically sorting their genomes from metagenomic sequences. The software uses an expectation-maximization algorithm to classify metagenomic sequences into discrete bins representing individual microbial species.
Researchers uncover new insights into viral infections influencing SUP05 ecology and metabolic potential in oxygen-minimum zones. The study reveals viruses play a crucial role in marine microbial ecology below sunlit surface waters, with implications for ocean carbon cycling.
Recent studies suggest that warming may stimulate decomposition rates in soils, releasing large quantities of carbon dioxide. However, a new study reveals that microbial community responses are more complex and may even increase CO2 release from soils.
Researchers analyzed samples from seven families over six weeks to understand how people influence the microbial communities in their homes. The study found that hands were the most likely to have similar microbes, while noses showed more individual variation.
Researchers discovered microbial communities within oil droplets, degrading oil and reducing its quality. This finding could pave the way for new approaches to clean up contaminated groundwater.
Researchers analyzed microbial communities from sandy tidal flats, finding three key factors controlling denitrification and ammonification: nitrite to nitrate ratio, carbon to nitrogen ratio, and generation time. The study's findings shed light on the complex interactions between microbes and their environment.
Researchers observed different species of bacteria expressing genes in consistent cycles, with periods of activity mirroring hourly workers' shifts. This finding has implications for understanding microbial dynamics and their impact on ocean health and productivity.
A new study by San Diego State University researchers reveals that inhabited coral islands significantly alter their surrounding reef ecosystems, disturbing microbes, corals, algae, and fish. The study found that certain types of bacteria can predict whether a reef is dominated by coral or algae.
New research shows methane emissions from microorganisms in lake sediment and freshwater wetlands will increase several times as temperatures rise, outpacing CO2 emissions. The study provides a measurement scientists can use to model methane's contribution to climate change.
Researchers discovered specific soil microbes that hinder the growth of ragweed, a common weed in eastern US. By using plants that attract these microorganisms, farmers may be able to create 'weed-suppressive soils' and reduce weed growth.
Researchers found a shift in soil microbial communities as shrubs invaded remnant hill prairies, with woody fungal communities emerging in response to increased shrub density. This change could impact the ability to restore prairies, as shrubs may outcompete grasses and alter ecosystem function.
Researchers found that flowing water impeds bacterial movement, making microbes more likely to attach to surfaces. This discovery has implications for studying marine ecosystems and preventing infections in medical devices.
Yiqi Luo, a University of Oklahoma professor, has been named an AAAS Fellow for his work on data assimilation and ecological forecasting. His research aims to predict ecosystem changes in response to environmental shifts, which could inform global responses to climate change.
Researchers found distinct cervical and vaginal microbiota patterns in women destined for preterm birth compared to those with term births. The study revealed significant differences in microbial communities, particularly lower levels of non-CST III bacteria, weeks before the actual preterm birth.
In deep, old, and nutrient-poor marine sediments, viruses outnumber microbes by up to 225 times, controlling the size and composition of microbial communities. Viruses produce new viruses that remain in sediment for longer periods due to limited enzymatic destruction, leading to a high turnover rate.
Scientists at the Marine Biological Laboratory found that different sponge species have unique microbiomes that are specific to their host species. The study used ultra-deep DNA sequencing technology to analyze the microbiomes of seven sponge species from various habitats.
Scientists found that warming soil by 2 degrees Celsius alters microbial DNA to enhance carbon handling. The study reveals complex interactions between plants and microbes, impacting climate change predictions.
Researchers discovered that Methanosaeta, a prominent methane-producing microorganism, produces methane by making electrical connections with other microorganisms. This finding challenges previous understanding of methane production and has significant implications for optimizing bioenergy strategies.
Research finds that animal populations can significantly influence carbon storage and exchange in regional ecosystems, often rivaling the impact of fossil fuel emissions. This underplayed role highlights the need for a more comprehensive understanding of the indirect effects of animals on the carbon cycle.
Researchers discovered haloarchaea dominate Deep Lake's microbial community, exchanging DNA among species and genera. The microbes' ability to share genetic information enables specialization, coexistence, and adaptability.
A new study reveals triclosan is fueling the development of resistant bacteria in streams and rivers, disrupting native bacterial communities and potentially diminishing the usefulness of important antibiotics. Urban sites are most impacted by high levels of triclosan pollution from combined sewer overflows.
A 150-year-old moss bank on the Antarctic Peninsula reveals rapid ecological changes driven by warming temperatures, showing sensitive flora and fauna responses to climate change. The study suggests future terrestrial biota changes will track projected temperature increases closely.
A study by researchers at Arizona State University found that global warming may affect the survival of key microbe species in topsoil crusts. The team discovered that two cyanobacteria, Microcoleus vaginatus and Microcoleus steenstrupii, have split their territory between themselves due to temperature differences.
A study published in Applied and Environmental Microbiology reveals that microbial changes can regulate entire ecosystems, specifically mitigating the release of methane, a powerful greenhouse gas. The research found that type II methanotrophic bacteria replaced other microbes, oxidizing methane and reducing its impact.
A former University of California, Riverside graduate student built a system that replicates a human colon, septic tank, and groundwater to understand the impact of bacteria on groundwater. His research found that pathogens could potentially linger longer in aquatic environments, posing a risk to water quality.
A decline in snow cover poses a significant threat to many plant and animal species, compromising their survival during harsh winter weather. The subnivium, a seasonal microenvironment beneath the snow, is experiencing drastic changes due to rising temperatures.
Researchers found that bacterial communities on roller derby players predict team membership and become significantly more similar when opposing teams compete. The study highlights the potential for contact sports to influence our microbiome, with implications for healthcare and disease transmission.
Researchers analyzed 16 soil samples from around the globe and sequenced their DNA to understand the functional roles of microorganisms. The study reveals that different species perform unique jobs based on their environment, shedding light on the importance of biodiversity in maintaining ecosystem services.
In a study, MIT physicists found that cooperative yeast members outperform cheaters when competing with bacteria in an experimental setup. This is because cooperators have easier access to sugars and can spread less due to population density constraints.
A recent study published in PNAS found that the Arctic and Southern Oceans have distinct microbial community compositions, with few common members sharing surface areas. The research suggests that freshwater input from glaciers and rivers drives these differences, with a greater prevalence of unique organisms in coastal regions.