All University of Vienna articles
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NewsArchaea as “flexitarians”: Ammonia-oxidizing microbes also feed on amino acids
Symbiotic ammonia-oxidizing archaea in marine sponges are not strict specialists, but true “flexitarians”. Research has shown that these microbes dine not only on ammonia but also on amino acids - and presumably do that to communicate with their animal host.
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NewsDecoding the gut microbiome’s symphony in health and disease
Researchers have reported effective strategies for simultaneously measuring thousands of microbial and host proteins. They systematically compared five state-of-the-art mass spectrometry approaches using human fecal samples.
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NewsScientists discover thriving hard-substrate fauna in Oceania’s deep sea
In the crushing darkness of the hadal zone—deep ocean trenches plunging 6,000 m to nearly 11,000 m—scientists have uncovered a hidden community. A study reports the discovery of a protist-dominated hard-substrate fauna across seven hadal regions in Oceania, highlighting an overlooked yet highly active carbon “hotspot.”
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NewsEvolutionary processes shape bacterial populations in the human gut
Researchers used the ‘reverse ecology’ analytical approach to demonstrate that many known gut bacterial species consist of several evolutionarily distinct groups that have adapted to different conditions in the gut.
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NewsE. coli and ‘good’ bacteria balanced by breastmilk in baby gut microbiomes
Sugars contained exclusively in breast milk are helping to feed an important balance of bacteria in babies’ developing gut microbiomes, according to a study that describes how babies who are breastfed maintain a mutually beneficial co-existence of E. coli and Bifidobacterium.
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NewsHow gut bacteria and acute stress are linked
Researchers have demonstrated for the first time that, in healthy adults, the diversity of gut bacteria and their capacity to produce certain metabolites are associated with the acute stress response - particularly stress reactivity.
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NewsMapping the hidden gene highways of wastewater biofilms
A new study uncovers the hidden microbial connections within wastewater biofilms by combining Hi-C sequencing with multi-omics to directly map which phages and plasmids are associated with which microbial hosts.
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NewsAncient symbiosis between plants and fungi: Important insights for sustainable agriculture
Almost all plants live in close symbiosis with so-called mycorrhizal fungi – an important symbiosis for absorbing essential nutrients. Scientists have discovered that this mycorrhizal symbiosis is very sensitive to imbalances of certain nutrients in the soil.
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NewsPlastic particles can increase intestinal inflammation
Researchers investigating a possible link between the rising number of people with chronic inflammatory bowel disease and the increasing exposure to micro- and nanoplastics show that plastic particles influence the immune cells and the intestinal microbiome and can thus increase inflammation.
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NewsMicrobiome of an entire country is mapped for the first time
An international research team has systematically mapped the microbiome of an entire country for the first time. More than 10,000 environmental samples from across Denmark were analyzed, resulting in an atlas of environmental microbiomes with unprecedented spatial resolution and functional depth.
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NewsMicrobiologists uncover bacteria that remove toxic sulfide and use iron minerals for growth
An international team of scientists has discovered a new microbial metabolism: so-called MISO bacteria “breathe” iron minerals by oxidizing toxic sulfide. The previously unknown biological process sees versatile microbes remove toxic sulfide and use it for their growth.
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NewsThe Holobiont Revolution: How wheat is becoming more climate-resilient
A new breeding concept, specifically for wheat, could help reduce nitrogen fertilization. This holobiont principle places the complex interactions between plants and soil microbiomes at the center of plant breeding.
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NewsResearchers reveal how microbes can swim without a brain
Many microorganisms can move in a goal oriented way in liquids, despite the lack of a complex nervous system. New research explains the behaviour of microorganisms, and could also enable nanobots to move in a targeted manner.
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NewsNew hope against superbugs: Promising antibiotic candidate discovered
An international team of researchers has discovered saarvienin A, a new type of glycopeptide antibiotic. Their findings introduce a compound with strong activity against highly resistant bacterial strains.
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NewsNew antibiotic for multidrug resistant superbug triggers suicide mechanism
Researchers have discovered a new class of antibiotic that selectively targets Neisseria gonorrhoeae, the bacterium that causes gonorrhoea.
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NewsOrigin of life: How microbes laid the foundation for complex cells
Researchers examining links between Asgard archaea and eukaryotes have shown that Asgard tubulins form similar microtubules, albeit smaller than those in their eukaryotic relatives. Unlike actin, these tubulin proteins appear in very few species of Asgard archaea.
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NewsParkinson’s drug changes the gut microbiome for the worse due to iron deficiency
Scientists have revealed that the widely prescribed Parkinson’s disease drug entacapone significantly disrupts the human gut microbiome by inducing iron deficiency.
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NewsNewly discovered ability of comammox bacteria could help reduce nitrous oxide emissions in agriculture
An international research team has discovered that comammox bacteria can grow using guanidine, a nitrogen-rich organic compound, as their sole energy and nitrogen source, opening new avenues for targeted cultivation of these enigmatic microbes.
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NewsLong-standing marine mystery solved: How algae get nitrogen to grow
In a new study, scientists have shed light on an unexpected partnership: a marine diatom and a bacterium that can account for a large share of nitrogen fixation in vast regions of the ocean.
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NewsWastewater plant yields giant viruses that infect deadly parasite
Researchers have discovered giant viruses that infect the single-celled organism Naegleria fowleri which ranks among the deadliest human parasites.