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Microbiology News
Thu, 16 Nov 2017 17:24:52 EST
Unlocking the secrets of Ebola
Scientists have identified a set of biomarkers that indicate which patients infected with the Ebola virus are most at risk of dying from the disease. The results come from one of the most in-depth studies ever of blood samples from patients with Ebola. Researchers found 11 biomarkers that distinguish fatal infections from non-fatal ones and two that, when screened for early upon symptom onset, accurately predict which patients are likely to die.
Thu, 16 Nov 2017 14:21:46 EST
How Snapdragons keep their color: Signposting trick reveals evolutionary mechanism
A study of the colour patterns among wild flowers in a mountain valley has yielded a clue about how nature controls fundamental evolutionary change in all species.
Thu, 16 Nov 2017 14:20:58 EST
How the immune system identifies invading bacteria
Never-before-seen images of mouse immune system proteins and bacterial bits reveal an inspection strategy that identifies pathogens.
Thu, 16 Nov 2017 13:28:00 EST
Paraplegic rats walk and regain feeling after stem cell treatment
Paralyzed rats implanted with engineered tissue containing human stem cells were able to walk independently and regained sensory perception in their hind legs and tail. The implanted rats also show some degree of healing in their spinal cords. The research demonstrates the great potential of stem cells to treat spinal cord injury.
Thu, 16 Nov 2017 13:27:57 EST
Bacterium in a beetle makes it a leaf-eater
A leaf-eating beetle has evolved a symbiotic relationship that allows the insect to break down pectin. The findings on the novel function of the bacterium, which has a surprisingly tiny genome -- much smaller than previous reports on the minimum size required for an organism not subsisting within a host cell.
Thu, 16 Nov 2017 13:27:32 EST
Kill switches for engineered microbes gone rogue
Stable autonomous kill switches ensure biocontainment of living microbes designed as devices for medicine or the environment. New research outlines two new types of kill switches that address these challenges. The new kill switches are self-sufficient and highly stable in bacterial populations that evolve, and they last over many generations. They can ensure that only bacteria with intact synthetic gene circuits survive, or confine bacteria to a target environment at 37°C (body temperature) while inducing them to die at lower temperatures, as demonstrated during bacterial exit from a mouse intestinal tract.
Thu, 16 Nov 2017 13:26:47 EST
Gene discovery may halt worldwide wheat epidemic
A gene that enables resistance to a new devastating strain of stem rust, a fungal disease that is hampering wheat production throughout Africa and Asia and threatening food security worldwide, has been identified by scientists.
Thu, 16 Nov 2017 10:50:27 EST
How bacteria in the gut influence neurodegenerative disorders
Humans have roughly as many bacterial cells in their bodies as human cells, and most of those bacteria live in the gut. New research released today reveals links between the gut microbiome -- the population of microorganisms living in the gastrointestinal tract -- and brain diseases such as Parkinson's and Alzheimer's, including potential new ways to track and treat these diseases.
Thu, 16 Nov 2017 10:50:11 EST
New procedures for DNA stability
In eukaryotic cells the proximity of the genes to the nuclear pores, which are found in the nuclear membrane, contributes to maintaining the integrity of the genome. This is due to the fact that the anchoring of DNA to the pore during transcription avoids the formation of DNA-RNA hybrids, which are a natural source of DNA breaks and genome instability.
Thu, 16 Nov 2017 10:50:01 EST
More than a numbers game: New technique gauges microbial communities by biomass
New technique provides deeper look at microbial communities by assessing their biomass.
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