Articles tagged with Microbial Ecology
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 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 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 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.
ASU researchers have developed a method to regenerate biocrusts on arid lands by harnessing the power of solar farms. The approach, dubbed 'crustivoltaics,' has shown promising results in doubling biocrust biomass and tripling biocrust cover under photovoltaic panels.
A new group of DNA viruses, mirusviruses, has been discovered in marine plankton, linking them to both giant viruses and herpesviruses. The discovery reveals that the ancestors of herpes viruses once infected single-cell organisms, while the majority of mirusvirus genes share similarities with those of giant viruses.
A parasite identified as Philaster apodigitiformis has been found responsible for the massive die-off of long-spined sea urchins in the Caribbean Sea. The loss of these vital herbivores threatens coral reef health and balance, with devastating consequences for marine ecosystems.
A recent study published in PLOS Biology identifies a global strain of emerging wheat disease fungus, highlighting the importance of genomic surveillance in tracking pathogen evolution and crop resistance. The research found that breeds of wheat carrying the Rmg8 gene are resistant to this fungal strain.
A German-Dutch research team has created the first map of the Microverse, redefining microbial niches. Generalists, which can cope with a wide range of conditions, dominate most habitats, while specialists have more specific environments and smaller genomes.
Climate change is expected to impact northern peatlands, a key carbon storage ecosystem. A recent study found that rising temperatures and increased carbon dioxide levels can disrupt the delicate balance between nitrogen fixation and methane oxidation, leading to unpredictable outcomes.
Fruit fly gut remodels itself to accommodate beneficial microbiome species, maintaining long-term stability of the gut environment. The research team identified physical conditions and substances that facilitate colonization by desirable species.
A study published in Nature Communications reveals that microbes living on the leaves of perennial crops like miscanthus and switchgrass play a crucial role in plant resilience. The research identifies specific microbial functions that could be targeted for future management, promoting crop growth and reducing environmental impact.
A study found that healthy adult men with vaginal sex have a unique bacterial community in their urethra, with a core community supporting health and a secondary group more commonly found in the vagina. Vaginal sex has lasting effects, reshaping the male urinary-tract microbiome and increasing bacterial variation.
A model predicting oxygen levels in freshwater streams, developed by WVU researcher Omar Abdul-Aziz, helps determine stream pollution and health. The tool allows citizen scientists to take action on stream pollution, with potential applications for implementing the Clean Water Act.
Researchers found that bacteria's cooperative behavior helps in the short term but fails to protect them from predators. However, individual defense through filament formation proves successful and stabilizes bacterial population densities.
Research from Imperial College London and University of Exeter reveals that cooperative microbial communities release more carbon dioxide than competitive ones, contributing significantly to climate change. This finding has far-reaching implications for understanding the impact of temperature changes on global carbon cycles.
A study published in PLOS ONE found that common microbiome analysis techniques can yield erroneous results due to incomplete DNA databases. The researchers used computer simulations to test the consistency of current methods, showing that a large number of detected species are not actually present in the community.
Researchers discovered that certain microorganisms dominate burned soil after a wildfire, with some species increasing in abundance and others consuming charcoal. This finding could help revive megafire dead zones and provide insights into the human microbiome's response to stress.
A recent study published in The ISME Journal reveals that the majority of bacteria living in wild soil are slow growers, contrary to previous lab-based frameworks that suggested a dichotomy between fast and slow growing microbes. This finding highlights the importance of testing field-based ideas with data from nature.
A new study identifies how bacteria in deep-sea hydrothermal vents survive and thrive in the presence of toxic metals like copper and cadmium. Bacteria use transporter proteins to pump out these metals, but also employ more complex strategies, such as flagella formation and granule growth, to detoxify cadmium.
A team led by the University of Colorado Boulder discovered a unique microbial community on the newly formed Hunga Tonga Hunga Ha'apai island, which metabolizes sulfur and atmospheric gases. The microbes were found to be similar to those in hydrothermal vents, hot springs, and other volcanic systems.
A team of researchers at the University of Nebraska-Lincoln has discovered that certain microorganisms, such as Halteria, can eat high numbers of chloroviruses, which are known to infect green algae. This finding suggests that virovory, a virus-only diet, can support physiological growth and even population growth in an organism.
Researchers discovered a new ancient branch of life, Provora, comprising microbial predators that nibble prey to death. These microbes, called nibblerids and nebulids, were found in marine habitats globally and differ by 170-180 nucleotides from all other living things.
A University of California Riverside study found that Salton Sea dust triggers lung neutrophil inflammation in mice, with potential implications for asthma sufferers and other terminal lake regions. The research highlights the need for further funding to understand dust-triggered inflammation and its effects on human health.
Scientists have identified two-million-year-old DNA fragments in northern Greenland's Ice Age sediment, providing insights into the past ecosystem and its potential to predict climate change. The discovery has sparked hopes that it could help academics build a picture of the DNA evolution of species still in existence today.
Research from Aarhus University found that melting glaciers release around 10,000 microorganisms per millilitre of meltwater, leading to estimated annual releases of over 100,000 tonnes of carbon-dense microorganisms to surrounding ecosystems.
Research from the University of Reading found that sinks and P-traps harbor a surprising number of fungal organisms, including black moulds and relatives of baker's yeast. The study showed that these microorganisms can tolerate high temperatures, low pH, and low nutrients, making them a potential risk to health in certain environments.
A new study on rhesus macaques reveals a strong link between social connections and the abundance of beneficial gut bacteria. Monkeys with more sociable behavior have a higher presence of microbes like Faecalibacterium, which has anti-inflammatory properties.
Researchers found distinct gut microbiomes in wild marten from pristine and heavily impacted areas, highlighting a tool for assessing ecosystem health. The study's findings suggest that human disturbance affects carnivores' diets, reflected in their gut microbiomes.
A new dataset provides an unprecedented insight into the Arctic Ocean's biological life, revealing a year's worth of microbial communities and their responses to climate change. The EcoOmics dataset aims to guide conservation efforts and provide evidence for novel biology that may influence our understanding of evolution on Earth.
A recent study published in Geophysical Research Letters reveals that the Tonga volcano eruption stimulated a rapid and massive bloom of ocean phytoplankton, covering an area nearly 40 times the size of Oahu within just 48 hours. The bloom was triggered by the deposition of volcanic ash, which supplied nutrients for phytoplankton growth.