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Microbes may help astronauts transform human waste into food

A Penn State research team has created a system that uses microbial reactors to rapidly break down solid and liquid waste, producing a nutritious food source for astronauts on deep-space missions. The system, which can minimize pathogen growth, uses anaerobic digestion to convert human waste into edible biomass.

SourcePenn State·JournalLife Sciences in Space Research·DateJan 25, 2018

Changing how we view chlorine in soil

A recent study from Linköping University reveals that the supply of fresh organic compounds increases chlorination in soils, potentially changing our view on chlorine's significance. The discovery highlights new ecological functions of chloride and its potential impact on risk models for radioactive waste.

Microbial mass movements

The study highlights how human activities like tourism, trade, and agriculture impact microbial populations worldwide. Researchers warn of potential extinction risks for some microbes due to increased competition and spreading of antibiotic resistance genes.

SourceScience in Public·JournalScience·DateSep 14, 2017

The evolutionary origin of the gut

Researchers from the University of Vienna have challenged a 150-year-old hypothesis on the evolutionary origin of the gut by studying sea anemones. Contrary to previous beliefs, digestive enzyme- and insulin-producing gland cells do not develop from endoderm but from the ectodermal part of the mouth in sea anemones.

SourceUniversity of Vienna·JournalNature Ecology & Evolution·DateSep 11, 2017

'No solid evidence' for biopesticide-diarrhea link

A recent review by the European Food Safety Authority (EFSA) incorrectly linked Bacillus thuringiensis (Bt), a highly effective biopesticide, to diarrhoea in humans. However, Dr Ben Raymond of the University of Exeter disputes these findings, citing recent evidence that supports Bt bacteria as "very safe for humans".

SourceUniversity of Exeter·JournalFEMS Microbiology Ecology·DateJul 17, 2017

Microbe study highlights Greenland ice sheet toxicity

A Danish-led study found that microbes in Greenland's ice sheet can resist and degrade globally-emitted pollutants like mercury, lead, and PAHs. The research highlights the need for more attention to the release of anthropogenic contaminants as climate change melts the ice sheets.

SourceIOP Publishing·JournalEnvironmental Research Letters·DateJul 10, 2017

Historical rainfall levels are significant in carbon emissions from soil

Researchers found that soil microbes respond differently to shifts in moisture, with those from wetter areas respiring twice as much carbon to the atmosphere. This discovery suggests historical rainfall levels can impact climate modeling, improving predictions of local or regional differences in soil respiration and climate history.

SourceUniversity of Texas at Austin·JournalProceedings of the National Academy of Sciences·DateMay 29, 2017

A new model for activation of the immune system

A team of scientists has redefined the activation mechanism of the complement protein C1, a crucial part of the innate immune system. The study reveals that C1 is activated when two proteins are in close proximity, contradicting previous theories.

SourceAarhus University·JournalProceedings of the National Academy of Sciences·DateJan 23, 2017

Microbial life on Mars: The possibility must be considered conclude researchers in Astrobiology

Recent findings from the 1976 Viking mission and ongoing research suggest that microbial life on Mars is a possibility worth exploring. The presence of water, complex organic molecules, and methane in the Martian environment support a biological explanation for the results of the Viking Labeled Release experiment.