Articles tagged with Microbial Ecology
Researchers discovered that two species of marine bacteria work together to produce vitamin B12, essential for metabolism and survival of many marine organisms. The bacteria release building blocks into the water, which are then combined to form the vitamin through a complex process involving viral infection.
A new study found that barley plants recruit distinct microbial communities based on the sugars they secrete from their roots. The custom community of beneficial microbes improves the plants' growth, while differences in gene activity between the two barley types explained the variation in their root communities.
Researchers at ETH Zurich have developed a new method to produce chemicals using bacteria that feed on methanol, a renewable resource. The microbes can efficiently convert methanol into desired biochemical substances, offering a sustainable alternative to fossil-based chemicals.
Researchers studied how climate change impacts boreal forests' carbon absorption after fires. They found that regrowth is influenced by the partnership between plants and soil microbes, which weakens with climate change.
A new study reveals that ocean acidification changes the mix of microbes in coral reef systems, which can be used as an early indicator of ecosystem stress. The research suggests a novel measurement approach by analyzing microbial communities alongside larger organisms.
Researchers at ADA Forsyth Institute discovered a new phage resistance mechanism in the oral microbiome, where ultrasmall bacterial parasites, called Saccharibacteria or TM7, help their host bacteria resist lytic phages. This dynamic ecosystem promotes coexistence between antagonistic organisms.
A recent study published in Environmental Microbiology uses eDNA to analyze coral reef microbial communities, providing near-real time insights into ecosystem health. The research found that microorganisms can capture and predict stony coral tissue loss disease and hurricane disturbance impacts on US Virgin Island reefs.
A new model integrating soil microbes and large perennial grasses into the DayCent framework improves its representation of ecosystem dynamics. The updated model includes a live microbial biomass pool and dead microbial biomass pool to simulate carbon storage in soils, enhancing the evaluation of bioenergy crop sustainability.
Researchers at Oxford University have discovered a network of ocean currents that scatter coral larvae between remote islands in the Seychelles. This 'coral superhighway' suggests that centrally located reefs may play a crucial role in linking distant islands, supporting regional reef resilience.
Researchers studied Prorocentrum cordatum to understand its molecular processes, revealing a unique photosynthetic machinery that may help it adapt to changing light conditions. The findings could lead to improved understanding of harmful algal blooms and their role in climate change.
Researchers discovered a group of common microbes that work together to decompose flesh, allowing for accurate time-of-death estimates. A predictive model based on microbial activity demonstrated high accuracy in predicting time of death within three calendar days.
A new bioelectronic system has been developed to measure electrical conductivity in microorganisms without requiring biofilm formation on electrodes. This approach has revealed that Pseudomonas aeruginosa and Bacillus subtilis possess conductive properties, with potential applications in environmental energy technologies.
A young researcher from the University of Copenhagen has made a surprising discovery of high concentrations of methane in meltwater from three Canadian mountain glaciers. The findings challenge previous assumptions that methane in meltwater could only be found in oxygen-free environments under large ice masses.
Researchers found that extracellular vesicles transport RNA molecules between haloarchaea, enabling communication and gene regulation across microbial populations. A small GTPase similar to eukaryotic cells drives this process, suggesting an early evolutionary origin.
Scientists have identified ocean viruses that can help trap carbon dioxide in seawater, using similar techniques to prevent methane's escape from thawing Arctic soil. The study reveals which viruses target the most important reactions in microbial community metabolisms.
Researchers found that the bacterial community in Arctic seabed sediments remains stable throughout the seasons, with changes in gene expression of carbohydrate-degrading enzymes. This suggests that bacteria can utilize fresh material from the water column as well as stored compounds in the seabed.
A study at Marine Biological Laboratory found that bacteria form complex structures called 'pink berries' to protect against viruses. These structures have a genetic mechanism that introduces new variation into their genomes, allowing them to adapt and survive.
Researchers developed a new model incorporating genetic information from microbes to better understand soil carbon sequestration and plant-microbe interactions. This approach enables more accurate prediction of global carbon cycle changes in climate models, informing agricultural strategies to preserve carbon and mitigate climate change.
Researchers have discovered a novel RNA viral genome from thermoacidophilic microbes in hot springs, revealing a previously overlooked third RNA virus kingdom. The discovery sheds light on the diversity and evolution of RNA viruses and their potential roles in high-temperature environments.
Researchers found that tidal wetlands are not always less hospitable to methane-producing microbes as sea levels rise, with some sites emitting high levels of methane despite moderate saltwater influx. The study's results suggest complex factors governing methane emissions in natural landscapes, complicating predictions and models.
Researchers have uncovered evidence of complex microbial communities existing in ecosystems over 3 billion years ago, with a diverse carbon cycle involving various microorganisms. The study provides a rare glimpse into the Earth's early ecosystems and advances our understanding of ancient microbial ecosystems.
Researchers discovered that a bacterial species can switch from being prey to a predator when grown at a lower temperature. The study, published in PLOS Biology, highlights the importance of considering historical context in evaluating predator-prey relationships.
A University of Oklahoma study explores how environmental stresses influence microbial community assembly and structure in groundwater. The research found that stochastic processes are critical at low stress levels, but deterministic processes dominate at higher stress levels.
Research details microbial associations in the marine microbiome, exploring ecological interactions among archaea, bacteria, and picoeukaryotes across different depths and regions. The study reveals regional and specific interactions that vary with depth and geographical location.
New research reveals that microplastic pollution affects soil fungi differently depending on moisture levels. In dry conditions, microplastics help retain water and may mitigate drought effects, while in well-watered environments, toxic chemicals leach into the soil, hindering fungal richness.
Researchers found that mycorrhizal fungi form mutually beneficial relationships with plant roots, improving juvenile survival and promoting species diversity. The study suggests that these symbiotic relationships between plants and fungi may play a role in driving global patterns of forest tree diversity associated with latitude.
Researchers find complex microbial communities forming giant mounds of rock in a harsh desert environment, resembling ancient stromatolites. The discovery provides an unprecedented look at the earliest stages of life on Earth and may hold clues about life on Mars.
Researchers separate out microbial and environmental controls on marine sedimentary pyrite sulfur isotope ratios, revealing local processes that dominate the record. This breakthrough refutes previous hypotheses and offers a new framework for interpreting ancient signals.
A new data-driven framework uses machine learning to identify keystone microbial species in human gut microbiomes, varying across communities. The study found that keystone species have context-dependent essentiality and can aid digestion, breaking down complex starches.
A study by Max Planck Institute for Marine Microbiology reveals that extracellular vesicles are the primary mechanism for genetic information exchange in the ocean. This discovery challenges traditional views on horizontal gene transfer and highlights the importance of EVs in microbial ecosystems.
Researchers developed a novel modeling approach to predict microbial community behavior, improving sustainability and efficiency of biological wastewater treatment. The new framework uses high-resolution molecular data to forecast composition and activity of microbial communities up to three years into the future.
Researchers observed a satellite bacteriophage consistently attaching to a helper bacteriophage at its neck, revealing a new viral relationship. The discovery suggests that this system may be more common than previously thought and could have significant implications for understanding the evolution of viruses.
Researchers analyze waste samples from 55 lined pit latrines in Malawi to understand the complex microbial communities. The findings reveal that aerobic microbes are more abundant near the surface and anaerobic microbes deeper in the pit, helping break down human waste and reducing greenhouse gas emissions.
Researchers analyzed DNA sequenced datasets of microbes collected from salt marsh sites to study the relationship between cordgrasses and sulfur-cycling microbes. They found diverse microbial communities with varying combinations of genes for sulfate reduction and sulfur oxidation, allowing them to thrive in salt marsh sediments.
Researchers at West Virginia University are studying the effects of acid rain on forests and watersheds, a project involving middle school students. The team aims to understand how ecosystems respond to chronic changes in environmental conditions, including the recovery phase after acid rain stops falling.
Acinetobacter baumannii bacteria can form special cells that survive for long periods in a dormant state, making antibiotic treatment challenging. The discovery could lead to new treatment concepts by targeting proteins involved in the transition to this slumber state.
Researchers found that different flours foster distinct bacterial communities, contributing to the variation in sourdough aromas and flavors. The study reveals that bakers can influence the aroma of their sourdough by using different flours.
Researchers suggest transforming arid ecosystems into efficient carbon-capture systems by engineering ideal combinations of plants, soil microbes, and soil type. This approach could result in significant increases in plant and soil carbon sequestration within less than ten years.
A new University of Washington study measures how sea-ice microbes respond to changing conditions, offering clues to the impacts of climate change on this remote ecosystem. The results show that single-celled algae produce cryoprotectants to survive in winter and adjust their salt-like organic molecules to balance water balance.
Researchers discovered a species of fungus that fosters a unique symbiotic relationship with oilseed rape plants, increasing flavonoid biosynthesis and enhancing plant defense against pests. This breakthrough offers promising potential for sustainable agriculture and minimizing ecological footprints.
Researchers at the Salk Institute discovered that high-fat diets change gut bacteria and bile acids, leading to inflammation and affecting intestinal stem cell replenishment. The altered bile acids cause inflammation and increase cancer risk in mice.
Researchers are creating synthetic microbiomes to protect aquatic environments from bacteria, improving shrimp health and reducing the risk of disease in aquaculture farms. The team is collaborating with farmers in Ecuador to develop new microbial communities that will increase resistance to pathogenic bacteria.
Researchers found that soil microbes adapt to drought conditions over time and provide benefits to plants when grown together, even without plant signals. This challenges the long-held assumption of co-evolutionary dialogue between plants and microbes.
Researchers at Penn State discovered that bioluminescent bacteria use a small RNA molecule called Qrr1 to coordinate their behavior and colonize the squid's light organ. This mechanism is likely widespread among bacteria, enabling them to exploit quorum sensing pathways.
Researchers discovered that extracellular cytochrome nanowires are widespread in prokaryotic microbes, including both bacteria and archaea. The findings suggest that these nanowires, composed of a long chain of cytochrome proteins, play a crucial role in microbial metabolism by facilitating efficient electron transfer.
Researchers discovered that Streptomyces bacteria produce chemical substances called arginoketides, which trigger biofilm formation, algae aggregates, and fungal signalling. These findings shed light on microbial communication and its impact on soil ecosystems and plant diseases.
Researchers found magnetotactic bacteria living on a hydrothermal vent chimney at 2,787 meters below the ocean's surface. The discovery provides clues to the early diversification of bacteria and offers insights into the environment that may support extraterrestrial life.
Researchers found that plants can significantly reduce petroleum contamination in subarctic soil by altering the microbial community structure. The study provides insights into phytoremediation's potential to restore contaminated ecosystems.
Researchers discovered a methanogen that converts sulfate into a cellular building block, reassembling a metabolic pathway piece by piece. The microbe assembled the first sulfate assimilation pathway from a methanogen, using genetic tricks to overcome energetic costs and toxic intermediates.
Researchers found that warming conditions can shift mixotrophic microbes from carbon sinks to carbon emitters, potentially accelerating warming and creating a positive feedback loop. These tiny microbes, abundant in freshwater and marine environments, could act as early warning signals for climate change tipping points.
Researchers at Duke University have identified a climate feedback loop that could accelerate climate change. Monitoring mixotrophs, tiny organisms with dual metabolism modes, may allow us to anticipate the tipping point before it gets there. However, nutrient pollution poses a challenge to detecting early warning signals.
A new study reveals faster growth rates of SAR11 bacteria than previously believed, with some groups dividing up to ten times faster. The research also shows that the timing of bacterial proliferation can influence their abundance and survival, challenging previous assumptions about marine microbial life.
NERC has invested £25 million in a host of high-risk, high-reward research projects tackling key unanswered questions about our planet. The projects cover geology, atmospheric science, biodiversity and ecology, with research spanning 3-4 years and funding up to £1.3 million.
A WVU researcher is creating mathematical models to predict how bioenergy crops enhance and store soil carbon, potentially spurring renewable energy from biological sources. The model considers factors like plant roots, microbes, and feedstocks to determine net carbon benefits or losses.
A new study proposes that ancestors of Prochlorococcus microbes used chitin particles as rafts to venture into the open ocean. This enabled them to evolve new abilities and eventually thrive in the nutrient-poor waters, playing a crucial role in absorbing CO2 from the atmosphere.
A study by McGill University and University of British Columbia found that the planet's biomass is concentrated in organisms at either end of the size spectrum. The researchers discovered a universal upper limit for maximum body size across multiple species and environments, with similar sizes reached by trees, fish, and other organisms.
A study examines how viral infections may alter microbial processes and ecosystem functioning in response to climate change. The research reveals potential gaps in understanding the connections between viruses, warming, and ecosystem functioning.
Researchers from Aarhus University have discovered thousands of microscopic organisms thriving on glaciers, including a black algae that darkens the ice and accelerates melting. The study highlights the importance of understanding microbial life in extreme environments to better comprehend climate change.
An international team of scientists discovered that a severe imbalance in the intestinal microbes and gut microbiome-produced metabolites may directly affect the development and retention of anorexia nervosa. The study suggests that specific gut bacteria produce less vitamin B1, leading to loss of appetite and various symptoms.
A new study reveals that different species of bacteria colonize specific areas on diatoms, reflecting their metabolic properties. The findings provide insight into the complex interactions between algae and bacteria in marine environments.