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Microbiology News
Tue, 22 Aug 2017 12:38:47 EDT
No microbes? No problem for caterpillars
Caterpillars have far less bacteria and fungi inhabiting their gut than other animals and the microbes that inside them seem to lack any identifiable role, aside from occasionally causing disease.
Tue, 22 Aug 2017 12:38:44 EDT
How humans and their gut microbes may respond to plant hormones
A bowl of salad contains more than vitamins and minerals. Plant matter also includes remnants of the hormones plants produce to control how they grow, age, and manage water intake. Recently, scientists have reported that our gut microbes and cells may respond to these hormones and even produce similar molecules of their own. Researchers now explore how plant hormones may influence human health.
Tue, 22 Aug 2017 12:38:31 EDT
Infection model developed for tickborne flaviviruses
Scientists have filled a research gap by developing a laboratory model to study ticks that transmit flaviviruses, such as Powassan virus. Powassan virus was implicated in the death of a New York man earlier this year. The unusual model involves culturing organs taken from Ixodes scapularis ticks and then infecting those organ cultures with flaviviruses.
Tue, 22 Aug 2017 11:10:29 EDT
Oropouche virus could emerge and cause a public health problem
Brazil runs a serious risk of being afflicted by Oropouche, another virus that is widely distributed throughout South and Central America and the Caribbean. An arbovirus transmitted by a mosquito (like Zika and yellow fever), Oropouche causes acute fever and may lead to meningitis and meningoencephalitis (inflammation of the brain and meninges).
Tue, 22 Aug 2017 10:04:16 EDT
How a bacterium can live on methanol
Researchers have identified all the genes required by a bacterium to use methanol as a food source. The results will help scientists advance the use of this resource in the field of biotechnology.
Tue, 22 Aug 2017 09:22:34 EDT
Cyborg bacteria outperform plants when turning sunlight into useful compounds
Photosynthesis provides energy for the vast majority of life on Earth. But chlorophyll, the green pigment that plants use to harvest sunlight, is relatively inefficient. To enable humans to capture more of the sun's energy, scientists have taught bacteria to cover themselves in tiny, highly efficient solar panels to produce useful compounds.
Mon, 21 Aug 2017 18:33:56 EDT
How plants turn off genes they don't need
New research has identified small sequences in plant DNA that act as signposts for shutting off gene activity, directing the placement of proteins that silence gene expression.
Mon, 21 Aug 2017 15:46:21 EDT
Postnatal identification of Zika virus peptides from saliva
For the first time, researchers are using proteomics to examine proteins and peptides in saliva in order to accurately detect exposure to Zika virus. With 70 countries and territories reporting evidence of mosquito-borne Zika virus transmission, there is an increased need for a rapid and effective test for the virus. This study offers a new, quicker and more cost-effective way to test for the virus.
Mon, 21 Aug 2017 15:46:18 EDT
Alternative mode of bacterial quorum sensing
Researchers have revealed the existence of a new quorum-sensing molecule that increases the virulence of the pathogenic bacterium Pseudomonas aeruginosa.
Mon, 21 Aug 2017 15:46:11 EDT
Once invincible superbug squashed by 'superteam' of antibiotics
A team of three antibiotics has been assembled that, together, are capable of eradicating E. coli carrying mcr-1 and ndm-5 -- genes that make the bacterium immune to last-resort antibiotics, report researchers.
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