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Uncovering the secrets of electron-eating microorganisms

Researchers at Aarhus University are studying electro-trophic microorganisms that convert green electricity and CO2 into high-value products. The project aims to understand the underlying mechanisms of these microbes, which could lead to breakthroughs in microbiological Power-to-X and novel tools for microbial corrosion prevention.

Two previously unknown bacterial species identified from patients with inflammatory bowel disease

Researchers have isolated two new bacterial species from patients with inflammatory bowel disease (IBD), which break down the protective mucus layer of the gut. The bacteria, Allobaculum mucilyticum and Allobaculum fili, are highly efficient at degrading intestinal mucus, leading to potent immune responses.

SourceUniversity Medical Center Utrecht·JournalINTERNATIONAL JOURNAL OF SYSTEMATIC AND EVOLUTIONARY MICROBIOLOGY·TypeExperimental study·DateJan 12, 2023

Scientific criteria for assessing the safety of probiotics

A new paper highlights the need for globally harmonized probiotic regulatory approaches, emphasizing the importance of comprehensive genomic characterization. It proposes a risk-tier system based on strain history and genome analysis, recommending more extensive testing for innovative strains before marketing.

SourceInternational Scientific Association for Probiotics and Prebiotics·JournalRegulatory Toxicology and Pharmacology·TypeLiterature review·DateDec 29, 2022

Eating viruses can power growth, reproduction of microorganism

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.

SourceUniversity of Nebraska-Lincoln·JournalProceedings of the National Academy of Sciences·DateDec 26, 2022

Two fungi work together to kill fig trees

Researchers at Nagoya University discovered that when Ceratocystis ficicola and Fusarium kuroshium fungi are combined, fig saplings experience rapid wilting. The two fungi work together to cause more damage than either one alone, highlighting the importance of considering co-occurring microorganisms in disease control strategies.

SourceNagoya University·JournalMicroorganisms·DateDec 15, 2022

Hundreds-fold electrochemical measurement output brings data science to reveal microbial electricity generation mechanisms

Researchers developed a device capable of taking hundreds of times more electrochemical measurements than conventional devices, enabling the analysis of molecular mechanisms that enable microorganisms to efficiently generate electricity. The technique can also be used to analyze materials interacting with microorganisms.

Discovery of world’s oldest DNA breaks record by one million years

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.

SourceSt. John's College, University of Cambridge·JournalNature·TypeData/statistical analysis·DateDec 7, 2022

Fungi in sink drains act as ‘reservoirs for mould’

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.

SourceUniversity of Reading·JournalEnvironmental DNA·TypeExperimental study·DateDec 1, 2022

Revealing biochemical “rings of power”

Researchers at Max-Planck Institute for Terrestrial Microbiology have deciphered the biosynthesis of benzobactins, a class of natural compounds with special biological activity. The study reveals that these compounds are widespread in diverse bacteria and could be excellent candidates for future drug therapy.

SourceMax-Planck-Gesellschaft·JournalAngewandte Chemie·TypeMeta-analysis·DateNov 18, 2022

Laughing gas in space could mean life

Researchers propose nitrous oxide as a potential biosignature for exoplanets, detectable by the James Webb Space Telescope. They modeled N2O production on Earth-like planets and found it could be comparable to CO2 or methane in star systems like TRAPPIST-1.

SourceUniversity of California - Riverside·JournalThe Astrophysical Journal·TypeComputational simulation/modeling·DateOct 4, 2022

A sea change for plastic pollution: New material biodegrades in ocean water

Scientists at the University of California San Diego have developed a new biodegradable polyurethane material that can break down in seawater, reducing plastic pollution. The material was tested in marine environments and found to be degraded by microorganisms, which consume the chemicals as nutrients.

SourceUniversity of California - San Diego·JournalScience of The Total Environment·TypeExperimental study·DateSep 22, 2022

Same same but different

Researchers at Kyoto University have developed a new method to detect intraspecies genomic diversity, or microdiversity, of uncultivated bacteria. This approach allows for a more comprehensive understanding of microbial ecology and evolution, as previously overlooked variations are now being studied.

SourceKyoto University·JournalmSystems·TypeExperimental study·DateSep 21, 2022

Novel technique helps discover whether bacteria that cause meningitis are resistant to antibiotics

A novel method developed by Brazilian researchers can analyze bacterial samples without isolating live bacteria, making it easier to detect antibiotic resistance in Streptococcus pneumoniae. The technique was tested on 873 samples and found that 51% were sensitive to antibiotics, while 17% were resistant.

The presence of certain bacteria in the saliva might indicate post-trauma in veteran soldiers

A study by Tel Aviv University researchers found a unique oral microbiotic signature in the saliva of veteran soldiers with PTSD, which may help diagnose post-traumatic stress disorder objectively. The study also showed that people with PTSD exhibit the same picture of bacteria in their saliva as those who have experienced combat stres...

SourceTel-Aviv University·JournalMolecular Psychiatry·DateAug 10, 2022

Ridge-to-reef ecosystem census reveals hidden reservoir for microbiomes

A team of researchers at the University of Hawaii collected over 3,000 microbial samples from Waimea Valley's watershed, discovering that microbes follow the food web and are maintained within soil and stream water. The study also found that local distribution of a microbe predicts its global distribution.

SourceUniversity of Hawaii at Manoa·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateAug 8, 2022

New dog food? Study shows Fido's gut bacteria could turn over within a week

A new study from the University of Illinois found that dog gut bacteria can change rapidly after introducing a new diet, with microbial turnover occurring in under a week. The research also confirmed previous findings on the health benefits of high-fiber diets over high-fat and high-protein diets.

Scientists show how fast-growing bacteria can resist antibiotics

A study published in eLife has shown that fast-growing bacteria can resist antibiotics by displaying higher ribosome expression, allowing them to avoid macrolide accumulation. This finding highlights a new survival strategy for bacteria and offers potential avenues for developing improved antibiotic compounds.

SourceeLife·JournaleLife·DateJun 7, 2022

Humans pass on gut microbes to wildlife living in cities

A recent study published in eLife found that wildlife living in urban environments have picked up some gut bugs from humans, leading to a 'humanization' of their microbiota. The researchers analyzed gut microbiomes in distantly related vertebrates from urban and rural areas and discovered significant differences between the two.

SourceeLife·JournaleLife·DateMay 31, 2022

Loops for micro-organisms

A UFZ research team has developed a new method called 'mass transfer with a loop' to stabilize microbial communities in bioreactors. This approach prevents the loss of crucial microorganisms, which are essential for various biotechnological processes, by synchronizing their composition and functions.

SourceHelmholtz Centre for Environmental Research - UFZ·JournalProceedings of the National Academy of Sciences·TypeExperimental study·DateMay 17, 2022

How do water mould spores swim?

Researchers have developed a theoretical model explaining how water mould spores move and change direction, revealing a breaststroke-like motion for turning. The study provides insights into the biophysical nature of these microorganisms, which could lead to new avenues in physics research.

SourceCNRS·JournaleLife·TypeObservational study·DateMay 9, 2022