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Microbiology News
Thu, 01 Dec 2016 16:59:22 EST
Modifying a live virus in a vaccine to be just strong enough
By genetically tweaking the constituent live virus, scientists have created a vaccine against influenza in which the virus is capable of activating the immune system but cannot replicate in healthy cells -- an approach that may become more widely used for generating live virus vaccines adapted to other viruses.
Thu, 01 Dec 2016 12:21:59 EST
Gut microbes promote motor deficits in a mouse model of Parkinson's disease
Gut microbes may play a critical role in the development of Parkinson's-like movement disorders in genetically predisposed mice, researchers report. Antibiotic treatment reduced motor deficits and molecular hallmarks of Parkinson's disease in a mouse model, whereas transplantation of gut microbes from patients with Parkinson's disease exacerbated symptoms in these mice. The findings could lead to new treatment strategies for the second most common neurodegenerative disease in the United States.
Thu, 01 Dec 2016 12:21:32 EST
Natural alternatives to protect plants inspired by pharmaceutical research
The bacteria Streptomyces -- which is commonly used in human antibiotics and found in the natural environments of wild plants as well as crops -- could be used as an environmentally friendly alternative to pesticides, scientists say. In addition to protecting plants from fungal and other threats, Streptomyces has been shown to keep roots healthy and promote plant growth.
Thu, 01 Dec 2016 12:11:35 EST
Gut microbe movements regulate host circadian rhythms
Even gut microbes have a routine. Like clockwork, they start their day in one part of the intestinal lining, move a few micrometers to the left, maybe the right, and then return to their original position. New research in mice now reveals that the regular timing of these small movements can influence a host animal's circadian rhythms by exposing gut tissue to different microbes and their metabolites as the day goes by. Disruption of this dance can affect the host.
Thu, 01 Dec 2016 12:11:02 EST
Multi-institutional collaboration uncovers how molecular machines assemble
Ribosomes -- macromolecular machines consisting of RNA and proteins that twist, fold and turn -- are responsible for making all of the protein within a cell and could hold the key to deciphering a range of diseases. Despite the intricacies of ribosomes, cells are able to churn out 100,000 of them every hour. But because they assemble so speedily, researchers haven't been able to figure out how they come together.
Thu, 01 Dec 2016 11:44:47 EST
Protective barrier inside chromosomes helps to keep cells healthy
Fresh insights into the structures that contain our genetic material could explain how the body's cells stay healthy. A protective barrier formed inside each of our chromosomes helps to prevent errors occurring when cells divide, researchers say. The study sheds light on the precise interplay between key factors inside chromosomes that leads to the formation of the barrier.
Wed, 30 Nov 2016 14:12:08 EST
Researchers detail what makes costly ruminant bacteria so infectious
A veterinary research team has discovered the specific genetic mutations that make Campylobacter jejuni such a virulent strain of bacteria in ruminant animals such as sheep and cattle. The research could lead to a vaccine or new ways to control the bacteria.
Wed, 30 Nov 2016 12:41:50 EST
Predatory bacterium that kills to obtain bioplastic
A new method has been designed that uses a predatory bacterium to extract bioplastic materials from the inside of other bacteria, without degrading it. The system, already patented, will make it possible to obtain this type of products at low cost and at industrial scale in bacterial cell factories.
Tue, 29 Nov 2016 15:38:02 EST
VirusDetect, a new bioinformatics pipeline for virus identification released
Researchers studying the viruses that affect agricultural production or human health now have a new tool for investigating where viruses have spread, on a local, national, or even global scale.
Tue, 29 Nov 2016 15:37:33 EST
Each animal species hosts a unique microbial community and benefits from it
Each animal species hosts its own, unique community of microbes that can significantly improve its health and fitness. That is the implication of a laboratory study that investigated four different animal groups and their associated microbiota. The research found that each species within the group has a distinctive microbial community.
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