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Microbiology News
Tue, 27 Jun 2017 10:54:55 EDT
Structures vital to virus replication illuminated
Scientists have, for the first time, imaged molecular structures vital to how a major class of viruses replicates within infected cells. The research uses pioneering cryo-electron tomography to reveal the complex viral replication process in vivid detail, opening up new avenues to potentially disrupt, dismantle or redirect viral machinery.
Tue, 27 Jun 2017 10:54:07 EDT
The dust storm microbiome
The airborne dust carried in sand storms affects the health of people and ecosystems alike. New research suggests that part of the effect might not be in the particles of dust but rather in bacteria that cling to them, traveling many kilometers in the air with the storms.
Tue, 27 Jun 2017 10:53:47 EDT
How many protozoa are in the water we drink?
Researchers have analyzed drinking water and detected oocysts of Cryptosporidium and cysts of Giardia, two protozoa that cause outbreaks of diarrhea in humans. The levels detected are very low and do not represent a health risk; however, according to the study, the ubiquity of these parasites and the inefficiency of conventional water treatment in reducing them may present a public health issue.
Tue, 27 Jun 2017 10:53:40 EDT
Jellyfish fluorescence shines new light on DNA copying
Scientists have used florescent proteins from jellyfish to help shed new light on how DNA replicates.
Mon, 26 Jun 2017 18:09:55 EDT
Tracking bacterial movement between humans, animals key to understanding antibiotic resistance
In a new study, researchers treated bacteria the way they would any ecosystem, using genomic "tags" to track bacterial transmission.
Mon, 26 Jun 2017 18:09:12 EDT
Hunting microbes or smelling poison: A matter of evolution
Mammals possess several lines of defense against microbes. One of them is activated when receptors called Fprs, which are present on immune cells, bind to specific molecules that are linked to pathogens. Researchers showed in 2009 that these same receptors were also present in the nose of mice, probably to detect contaminated food or to avoid sick conspecifics. The biologists now describe how Fprs have acquired this olfactory role during rodent evolution, moving from the immune system to a neuronal system.
Mon, 26 Jun 2017 15:57:40 EDT
Microbe mystery solved: What happened to the Deepwater Horizon oil plume?
The Deepwater Horizon oil spill in the Gulf of Mexico in 2010 is one of the most studied spills in history, yet scientists haven't agreed on the role of microbes in eating up the oil. Now a research team has identified all of the principal oil-degrading bacteria as well as their mechanisms for chewing up the many different components that make up the released crude oil.
Mon, 26 Jun 2017 13:57:28 EDT
A little place for my stuff: How big bacteria can grow depends on how much fat they can make
Just as people endlessly calculate how to upsize or downsize, bacteria continually adjust their volume (their stuff) to fit inside their membrane (their space). But what limits their expansion? The answer will surprise you.
Mon, 26 Jun 2017 13:17:48 EDT
Rapidly mapping the 'social networks' of proteins
Scientists improved upon a classic approach to mapping the interactions between proteins.
Mon, 26 Jun 2017 12:46:08 EDT
Pulling the tablecloth out from under essential metabolism
Most organisms share the biosynthetic pathways for making crucial nutrients because it is is dangerous to tinker with them. But now a collaborative team of scientists has caught plants in the process of altering where and how cells make an essential amino acid.
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