Articles tagged with Microorganisms
Researchers at Duke University found that silver nanoparticles can have adverse effects on plants and microorganisms in low doses, leading to reduced biomass and altered enzyme activity. The study's findings highlight the need for further research into the environmental impact of these particles.
Researchers discovered significant numbers of living microorganisms in the middle and upper troposphere, approximately four to six miles above the Earth's surface. The findings suggest that these microorganisms could play a role in forming ice crystals and impact weather patterns.
Scientists used a robotic device to gather samples of 1 billion microbes every four hours, creating a time-lapse montage of their daily labors over two days. The study reveals synchronized metabolic gene expression among nonphotosynthetic microbes in response to environmental changes.
Researchers found that marine bacteria prefer specific temperatures, nutrients, light, and salinity levels, contradicting the 'everything is everywhere' hypothesis. The discovery suggests dispersal limitation plays a crucial role in shaping bacterial distributions.
The project aims to convert lignin into lipid, a substance usable for biodiesel production, and reduce hazardous waste. The researchers expect to result in a way to convert at least 40% of processed lignin, mitigating over 20 million tons of carbon dioxide.
The project aims to develop microbes that can convert methane in natural gas into liquid diesel fuel. If successful, this could reduce greenhouse gas emissions and lower dependence on foreign oil. The research, funded by ARPA-E, involves genetic modification of microorganisms to produce lipids from methane.
Researchers discovered how Yersinia pestis avoids triggering the immune system's early alarm, establishing a stronghold without self-destructing. This finding may lead to new vaccine development and treatments for inflammatory disorders, such as stroke, heart attack, lupus, and autoimmune diseases.
Scientists found that oxygen levels were extremely low on Earth 2.7 billion years ago, but also discovered microbes actively feeding on sulfate in the ocean during this period. The study provides new insight into ancient metal-ore deposits and their role in understanding early life evolution.
A team led by UC Davis Professor Jonathan Eisen and graduate student Wendy Brown will send microbes to the International Space Station to study their growth. The project aims to involve the public in science, especially those not normally engaged, through a competition where samples from different environments are compared.
A new study reveals that microbes beyond denitrifiers contribute to consuming nitrous oxide, a greenhouse gas 300 times more potent than CO2. This discovery reconciles inconsistencies in nitrous oxide emission predictions and advances understanding of ecological controls on global emissions.
The 2012 AAAS Kavli Science Journalism Awards honored outstanding science journalists, including Carl Zimmer for his work on evolution and the human microbiome. The awards recognized the importance of science journalism in covering big stories that both excite and enlighten. Sarah Holt won three times for her NOVA documentary exploring...
A new study reveals that metalloacid-coated surfaces exhibit strong antimicrobial activity against various microorganisms, including those resistant to multiple antibiotics. The coating's ability to produce acidic pH through oxonium ions significantly limits the survival of microbes on coated surfaces.
Scientists have discovered that carob tree leaves possess antibacterial properties effective against Listeria monocytogenes, a bacterium responsible for serious food poisoning outbreaks. The study suggests carob extracts could be used to preserve food and control disease-causing microbes.
Researchers at Iowa State University are using microbes to convert bio-oil from biomass into ethanol and lipids for biodiesel. The evolving bacteria and microalgae can tolerate higher concentrations of bio-oil, leading to a more efficient production process.
Researchers at Argonne National Laboratory have created a musical representation of microbial data, revealing intriguing patterns and relationships. The 'sonified' data showcases the natural structures in oceanic environments, offering a new way to visualize biological phenomena.
Scientists found evidence that early microbes colonized land 2.75 billion years ago, producing oxygen and weathering minerals. This discovery challenges the long-held assumption that life was limited to oceans during this period, suggesting a more significant role for microorganisms on land.
Researchers have developed a novel oral antiseptic spray, Halo, effective in killing 99.9% of infectious airborne germs, including influenza and rhinovirus. The spray prevents germs from entering the system and kills them, providing sustained protection for up to six hours.
Researchers at WashU Medicine have identified Wnt5a as a critical protein for reconstructing glands in the intestinal lining, which is key to repairing damaged gut tissue. The study provides new insights into the process of gut regeneration and potential therapeutic targets for diseases like inflammatory bowel disease.
Scientists have found that a type of ocean microbe, Nitrosopumilus maritimus, produces methylphosphonic acid, which is a key component in the production of ocean methane. This discovery helps explain the 'methane paradox' and has implications for climate change modeling.
A study by University of Rhode Island oceanographers and colleagues found drastically lower values for total biomass in marine sediments, reducing the estimated mass of all life on Earth by about one-third. The researchers collected sediment cores from open-ocean areas to obtain more accurate data.
A team led by Richard Ulevitch has received a five-year project renewal from the National Institutes of Health to investigate the workings of the immune system. The grant aims to improve human diseases such as viral and bacterial infections, and inherited immune disorders.
A recent study found that soil microbes play a crucial role in helping plants survive the effects of global changes, such as increased CO2 concentrations and altered precipitation patterns. By interacting with microbes, plants can adapt to drought stress more quickly, allowing them to thrive in new environments.
A new study in Nature confirms an improved method for measuring nitrogen fixation in the ocean, revealing rates that are between 62 and 600 percent higher than previously measured. The findings leave a gap in the nitrogen budget due to incomplete knowledge of microorganisms responsible for these processes.
A recent study by Wildlife Conservation Society and University of the Azores identifies additional risks to coral reefs from pollution and overfishing. The proliferation of microbes, sponges, and worms further degrades corals, highlighting the complexity of reefs and possible solutions.
Researchers at Oregon State University have developed a new technique to improve oil recovery and environmental cleanup using microbial enhanced oil recovery. The technology, which involves injecting microbes into wells to increase oil production, could make a comeback in the oil industry due to its potential for increased productivity.
James McKinlay aims to create a cooperative relationship between two microbial species to produce efficient hydrogen gas biofuel. The goal is to overcome the challenge of single microbes performing all necessary tasks, and instead, work together like diverse microbes in nature.
Researchers at Michigan State University have developed a novel biofuel production process that produces energy more than 20 times higher than existing methods. The process, known as microbial electrolysis cells (MECs), uses bacteria to breakdown and ferment agricultural waste into ethanol.
Researchers deployed omics to track microbial responses to the Deepwater Horizon oil spill, finding a succession of microbes degrading different fractions of oil. The study revealed an abundance of genes involved in hydrocarbon degradation and identified the first deep-sea oil-eating bacterium.
Researchers have discovered that Arctic bacteria can produce biosignatures linked to biological activity, which could be indicative of microorganisms on Europa. The study found needle-shaped sulphur crystals and organic compounds in the environment, sparking hopes of finding life beneath Europa's icy crust.
Researchers have successfully developed a genetically modified microorganism that produces high levels of arachidonic acid, a key fatty acid essential for infant nutrition. The microorganism, produced through ion beam mutation breeding, has shown promise for industrial application and potential use as a sustainable bio-diesel source.
Researchers at KAIST develop microorganisms to produce natural and non-natural chemicals from renewable biomass through systems metabolic engineering. The study presents new general strategies for improving cellular characteristics and designing synthetic metabolic pathways, enabling high-efficiency production of desired chemicals and ...
Researchers found that specialized bacterial populations occupy separate ecological niches during and after algal blooms, allowing them to degrade organic matter. This discovery resolves the plankton paradox by explaining how different groups of bacteria coexist in seemingly homogeneous habitats.
A new method to control a heat-loving microbe has been discovered, enabling its use as a miniature factory for producing biofuels and other materials. By inserting a gene from another organism into the hyperthermophile Pyrococcus furiosus, researchers can switch on lactate production at lower temperatures.
Scientists discovered tiny organisms thriving deep beneath a US asteroid impact site, supporting the idea that crater environments can harbor microbes. The researchers believe similar conditions exist on Mars, with drilling beneath craters potentially uncovering signs of life.
Scientists developed reference guide for potentially harmful germs in sand to inform beach management decisions, with a focus on minimizing risk for children. The study found low levels of harmful microbes at one beach site, indicating the sand was safe for beachgoers.
A University of Tennessee professor proposes a game-changing hypothesis that some species evolve by discarding genes rather than adding them. This idea counters the popular assumption that evolution increases complexity and highlights the importance of biological diversity in microorganisms.
Researchers found that human presence causes a substantial increase in airborne bacterial and fungal particles, with sizes affecting filtration and recirculation. The study, led by Yale University engineers, aims to improve air quality by understanding the dynamics of indoor biological aerosols.
The TARA OCEANS expedition mapped marine biodiversity across the world's oceans, understanding how microscopic organisms interact with their environment. The project aims to build a global systems biology map of these interactions, using advanced DNA sequencing and microscopy techniques.
Researchers at Brigham and Women's Hospital found that early-life exposure to microbes prevents asthma and colitis in mice. The study suggests that the hygiene hypothesis may be supported by a potential mechanism involving unique T cells.
A new study reveals that the Earth's early atmosphere periodically transitioned between a hydrocarbon-rich state and a haze-free environment due to microbial activity. This 'see-sawing' phenomenon had a profound impact on the climate system, with evidence suggesting a significant role in regulating atmospheric oxygen levels.
The PROMISE project aims to survey germs brought in with food and investigate their potential to cause disease. The project will pool data from throughout Europe to assess the risks posed by contaminated food of animal origin, building an extensive database of bacterial isolates.
Researchers at Lawrence Berkley National Laboratory's Center for Nanoscale Control of Geologic CO2 have engineered bacteria to speed up the formation of solid carbonate minerals, which can permanently trap carbon dioxide. This process could help remove excess CO2 from the atmosphere and mitigate global warming.
Researchers at Oregon State University say ocean microbes are shifting in response to warming oceans, but the impact on carbon sequestration and global warming is uncertain. Microbial communities play a crucial role in pumping carbon out of the atmosphere, with nearly half of photosynthesis attributed to plankton.
Research reveals that pneumonic plague bacteria transform the lungs into a permissive environment for microbial proliferation. Without symptoms, these bacteria grow and reproduce rapidly, leading to rapid disease progression and high mortality rates. This unique ability is exclusive to Yersinia pestis.
Scientists have found microbial succession in microbes on deep-sea hydrothermal vents, where life adapts to replace extinct communities with iron and sulfur-rich environments. Researchers at USC uncovered evidence of ecological succession on dormant vents, replacing heat-dependent microbes with new species.
Researchers have discovered two types of bacteria that can survive at extremely cold temperatures, including the bottom of Arctic and Antarctic glaciers. The bacteria, Chryseobacterium and Paenisporosarcina, respire in ice at temperatures ranging from -27 to 24 degrees Fahrenheit, using acetate as an energy source.
Researchers found that fungi can transform lead into pyromorphite, a more stable mineral form, which could be useful for cleaning up lead-polluted sites. The discovery suggests that introducing fungi may be a viable treatment option for containing lead in contaminated soils.
Researchers at JBEI have developed a breakthrough in engineering systems of RNA molecules through computer-assisted design, enabling the development of new strains of E. coli that can digest switchgrass biomass and convert it into three types of transportation fuels. This technology has the potential to improve the production of advanc...
Aalto University researchers have developed a new bioprocess that uses only lignocellulose from wood biomass to produce chemicals and biofuel. This process avoids wasting any parts of the wood sugar and can be used in existing combustion engines without modifications.
A team of scientists from Oregon State University has discovered microbes that can thrive in cold, low-oxygen conditions similar to those on Mars. These microbes use the oxidation of iron from olivine as their energy source, a process previously undocumented.
Researchers have found evidence of CO2 binding in brine channels within sea ice, where microorganisms thrive. This phenomenon diminishes the greenhouse effect and could inform global climate models.
A comprehensive list of 235 planthoppers from Iran has been compiled, featuring new species names and taxonomic data. The study aims to improve pest control management and encourage further research on this important group of insects.
Researchers have discovered a new way to produce biodegradable plastic PHB using microalgae. This alternative method could provide a renewable source of plastics, reducing the millions of tons of waste caused by petroleum-based plastics.
A University of Illinois study found that cleanliness of seeds is crucial in preventing foodborne pathogens in radish, broccoli, and alfalfa sprouts. The study suggests that industry attention to seed cleanliness can help eliminate E. coli and other microorganisms during germination and sprouting.
Using autonomous unmanned aerial vehicles (UAVs), researchers are creating an early warning system for high-risk plant pathogens by predicting atmospheric transport barriers. This technique aims to improve crop security, disease spread, and climate change management.
Scientists have identified a unique protein in an insect gut microbe that stores iron, regulating the concentration of molecules important for plant-insect interactions. The discovery sheds light on the survival strategies of the microbe and its relationship with the host insect.
Researchers used computer models to simulate the dispersal of microorganisms in the Earth's atmosphere, finding that smaller microbes can easily travel thousands of kilometers over a year-long period. This study has significant implications for understanding microbial diversity and the potential for disease outbreaks.
A UT professor's research on a pathogen that attacks the small intestines of humans and animals has inspired the development of robots that can fight disease and aid in military operations. The microorganism Giardia has been found to have unique properties, such as efficient swimming and attachment mechanisms.
Researchers found that bacterial microbes inside the oil slick degraded it at a rate five times faster than those outside, accounting for its disappearance. However, the microbes did not multiply or produce new cells despite consuming energy from respiration, leaving scientists puzzled about their fate.
A new knowledgebase, Kbase, will integrate disparate data streams on plants and microbes to facilitate question-asking about huge datasets. This will help make progress on improved ways to generate biofuels and optimize plant yields.